Extensive changes to the underlying code base.

Fully tested and working support for region level spliting
Reduced number of mappers.

18 files changed, 1097 insertions, 1907 deletions

diff --git a/src/main/java/parallelai/spyglass/hbase/HBaseConfigUtils.java b/src/main/java/parallelai/spyglass/hbase/HBaseConfigUtils.java
new file mode 100644
index 0000000..598a988
--- /dev/null
+++ b/src/main/java/parallelai/spyglass/hbase/HBaseConfigUtils.java
@@ -0,0 +1,53 @@
+package parallelai.spyglass.hbase;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+import java.io.IOException;
+
+/**
+ * Created with IntelliJ IDEA.
+ * User: chand_000
+ * Date: 29/08/13
+ * Time: 17:25
+ * To change this template use File | Settings | File Templates.
+ */
+public class HBaseConfigUtils {
+    static final Log LOG = LogFactory.getLog(HBaseConfigUtils.class);
+
+    public static void setRecordReaderParms(HBaseRecordReaderBase trr, HBaseTableSplitBase tSplit) throws IOException {
+        switch (tSplit.getSourceMode()) {
+            case SCAN_ALL:
+            case SCAN_RANGE: {
+                LOG.debug(String.format(
+                        "For split [%s] we have start key (%s) and stop key (%s)",
+                        tSplit, tSplit.getStartRow(), tSplit.getEndRow()));
+
+                trr.setStartRow(tSplit.getStartRow());
+                trr.setEndRow(tSplit.getEndRow());
+                trr.setEndRowInclusive(tSplit.getEndRowInclusive());
+                trr.setUseSalt(tSplit.getUseSalt());
+            }
+
+            break;
+
+            case GET_LIST: {
+                LOG.debug(String.format("For split [%s] we have key list (%s)",
+                        tSplit, tSplit.getKeyList()));
+
+                trr.setKeyList(tSplit.getKeyList());
+                trr.setVersions(tSplit.getVersions());
+                trr.setUseSalt(tSplit.getUseSalt());
+            }
+
+            break;
+
+            default:
+                throw new IOException("Unknown source mode : "
+                        + tSplit.getSourceMode());
+        }
+
+        trr.setSourceMode(tSplit.getSourceMode());
+    }
+
+}
diff --git a/src/main/java/parallelai/spyglass/hbase/HBaseConstants.java b/src/main/java/parallelai/spyglass/hbase/HBaseConstants.java
index 25b89cb..5b5e9c3 100644
--- a/src/main/java/parallelai/spyglass/hbase/HBaseConstants.java
+++ b/src/main/java/parallelai/spyglass/hbase/HBaseConstants.java
@@ -3,21 +3,26 @@ package parallelai.spyglass.hbase;
 import org.apache.hadoop.conf.Configuration;
 
 public class HBaseConstants {
-  
-  public enum SourceMode {
-    EMPTY,
-    SCAN_ALL,
-    SCAN_RANGE,
-    GET_LIST;
-  }
 
-  public static final String START_KEY = "hbase.%s.startkey";
-  public static final String STOP_KEY = "hbase.%s.stopkey"; 
-  public static final String SOURCE_MODE = "hbase.%s.source.mode";
-  public static final String KEY_LIST = "hbase.%s.key.list";
-  public static final String VERSIONS = "hbase.%s.versions";
-  public static final String USE_SALT = "hbase.%s.use.salt";
-  public static final String SALT_PREFIX = "hbase.%s.salt.prefix";
+    public enum SourceMode {
+        EMPTY,
+        SCAN_ALL,
+        SCAN_RANGE,
+        GET_LIST;
+    }
 
-  public static final String SINK_MODE = "hbase.%s.sink.mode";
-}
+    public enum SplitType {
+        GRANULAR,
+        REGIONAL;
+    }
+
+    public static final String START_KEY = "hbase.%s.startkey";
+    public static final String STOP_KEY = "hbase.%s.stopkey";
+    public static final String SOURCE_MODE = "hbase.%s.source.mode";
+    public static final String KEY_LIST = "hbase.%s.key.list";
+    public static final String VERSIONS = "hbase.%s.versions";
+    public static final String USE_SALT = "hbase.%s.use.salt";
+    public static final String SALT_PREFIX = "hbase.%s.salt.prefix";
+
+    public static final String SINK_MODE = "hbase.%s.sink.mode";
+}
\ No newline at end of file
diff --git a/src/main/java/parallelai/spyglass/hbase/HBaseInputFormat.java b/src/main/java/parallelai/spyglass/hbase/HBaseInputFormat.java
deleted file mode 100644
index 5a1184f..0000000
--- a/src/main/java/parallelai/spyglass/hbase/HBaseInputFormat.java
+++ /dev/null
@@ -1,645 +0,0 @@
-package parallelai.spyglass.hbase;
-
-import java.io.IOException;
-import java.net.InetAddress;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Set;
-import java.util.TreeSet;
-import java.util.UUID;
-
-import javax.naming.NamingException;
-
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-import org.apache.hadoop.hbase.HBaseConfiguration;
-import org.apache.hadoop.hbase.HConstants;
-import org.apache.hadoop.hbase.HRegionLocation;
-import org.apache.hadoop.hbase.HServerAddress;
-import org.apache.hadoop.hbase.client.HTable;
-import org.apache.hadoop.hbase.client.Result;
-import org.apache.hadoop.hbase.filter.Filter;
-import org.apache.hadoop.hbase.io.ImmutableBytesWritable;
-import org.apache.hadoop.hbase.util.Addressing;
-import org.apache.hadoop.hbase.util.Bytes;
-import org.apache.hadoop.hbase.util.Pair;
-import org.apache.hadoop.hbase.util.Strings;
-import org.apache.hadoop.mapred.InputFormat;
-import org.apache.hadoop.mapred.InputSplit;
-import org.apache.hadoop.mapred.JobConf;
-import org.apache.hadoop.mapred.JobConfigurable;
-import org.apache.hadoop.mapred.RecordReader;
-import org.apache.hadoop.mapred.Reporter;
-import org.apache.hadoop.net.DNS;
-import org.apache.hadoop.util.StringUtils;
-
-import parallelai.spyglass.hbase.HBaseConstants.SourceMode;
-
-public class HBaseInputFormat implements
-		InputFormat<ImmutableBytesWritable, Result>, JobConfigurable {
-
-	private final Log LOG = LogFactory.getLog(HBaseInputFormat.class);
-
-	private final String id = UUID.randomUUID().toString();
-
-	private byte[][] inputColumns;
-	private HTable table;
-	// private HBaseRecordReader tableRecordReader;
-	private Filter rowFilter;
-	// private String tableName = "";
-
-	private HashMap<InetAddress, String> reverseDNSCacheMap = new HashMap<InetAddress, String>();
-
-	private String nameServer = null;
-
-	// private Scan scan = null;
-
-	private HBaseMultiInputSplit[] convertToMultiSplitArray(
-			List<HBaseTableSplit> splits) throws IOException {
-
-		if (splits == null)
-			throw new IOException("The list of splits is null => " + splits);
-
-		HashMap<String, HBaseMultiInputSplit> regionSplits = new HashMap<String, HBaseMultiInputSplit>();
-
-		for (HBaseTableSplit hbt : splits) {
-			HBaseMultiInputSplit mis = null;
-			if (regionSplits.containsKey(hbt.getRegionLocation())) {
-				mis = regionSplits.get(hbt.getRegionLocation());
-			} else {
-				regionSplits.put(hbt.getRegionLocation(), new HBaseMultiInputSplit(
-						hbt.getRegionLocation()));
-				mis = regionSplits.get(hbt.getRegionLocation());
-			}
-
-			mis.addSplit(hbt);
-			regionSplits.put(hbt.getRegionLocation(), mis);
-		}
-
-		Collection<HBaseMultiInputSplit> outVals = regionSplits.values();
-
-		LOG.debug("".format("Returning array of splits : %s", outVals));
-
-		if (outVals == null)
-			throw new IOException("The list of multi input splits were null");
-
-		return outVals.toArray(new HBaseMultiInputSplit[outVals.size()]);
-	}
-
-	@SuppressWarnings("deprecation")
-	@Override
-	public HBaseMultiInputSplit[] getSplits(JobConf job, int numSplits) throws IOException {
-		if (this.table == null) {
-			throw new IOException("No table was provided");
-		}
-
-		if (this.inputColumns == null || this.inputColumns.length == 0) {
-			throw new IOException("Expecting at least one column");
-		}
-
-		final Pair<byte[][], byte[][]> keys = table.getStartEndKeys();
-
-		if (keys == null || keys.getFirst() == null
-				|| keys.getFirst().length == 0) {
-			HRegionLocation regLoc = table.getRegionLocation(
-					HConstants.EMPTY_BYTE_ARRAY, false);
-
-			if (null == regLoc) {
-				throw new IOException("Expecting at least one region.");
-			}
-
-			final List<HBaseTableSplit> splits = new ArrayList<HBaseTableSplit>();
-			HBaseTableSplit split = new HBaseTableSplit(table.getTableName(),
-					HConstants.EMPTY_BYTE_ARRAY, HConstants.EMPTY_BYTE_ARRAY, regLoc
-							.getHostnamePort().split(
-									Addressing.HOSTNAME_PORT_SEPARATOR)[0],
-					SourceMode.EMPTY, false);
-
-			splits.add(split);
-
-			// TODO: Change to HBaseMultiSplit
-			return convertToMultiSplitArray(splits);
-		}
-
-		if (keys.getSecond() == null || keys.getSecond().length == 0) {
-			throw new IOException("Expecting at least one region.");
-		}
-
-		if (keys.getFirst().length != keys.getSecond().length) {
-			throw new IOException("Regions for start and end key do not match");
-		}
-
-		byte[] minKey = keys.getFirst()[keys.getFirst().length - 1];
-		byte[] maxKey = keys.getSecond()[0];
-
-		LOG.debug(String.format("SETTING min key (%s) and max key (%s)",
-				Bytes.toString(minKey), Bytes.toString(maxKey)));
-
-		byte[][] regStartKeys = keys.getFirst();
-		byte[][] regStopKeys = keys.getSecond();
-		String[] regions = new String[regStartKeys.length];
-
-		for (int i = 0; i < regStartKeys.length; i++) {
-			minKey = (regStartKeys[i] != null && regStartKeys[i].length != 0)
-					&& (Bytes.compareTo(regStartKeys[i], minKey) < 0) ? regStartKeys[i]
-					: minKey;
-			maxKey = (regStopKeys[i] != null && regStopKeys[i].length != 0)
-					&& (Bytes.compareTo(regStopKeys[i], maxKey) > 0) ? regStopKeys[i]
-					: maxKey;
-
-			HServerAddress regionServerAddress = table.getRegionLocation(
-					keys.getFirst()[i]).getServerAddress();
-			InetAddress regionAddress = regionServerAddress.getInetSocketAddress()
-					.getAddress();
-			String regionLocation;
-			try {
-				regionLocation = reverseDNS(regionAddress);
-			} catch (NamingException e) {
-				LOG.error("Cannot resolve the host name for " + regionAddress
-						+ " because of " + e);
-				regionLocation = regionServerAddress.getHostname();
-			}
-
-			// HServerAddress regionServerAddress =
-			// table.getRegionLocation(keys.getFirst()[i]).getServerAddress();
-			// InetAddress regionAddress =
-			// regionServerAddress.getInetSocketAddress().getAddress();
-			//
-			// String regionLocation;
-			//
-			// try {
-			// regionLocation = reverseDNS(regionAddress);
-			// } catch (NamingException e) {
-			// LOG.error("Cannot resolve the host name for " + regionAddress +
-			// " because of " + e);
-			// regionLocation = regionServerAddress.getHostname();
-			// }
-
-			// String regionLocation =
-			// table.getRegionLocation(keys.getFirst()[i]).getHostname();
-
-			LOG.debug("***** " + regionLocation);
-
-			if (regionLocation == null || regionLocation.length() == 0)
-				throw new IOException("The region info for regiosn " + i
-						+ " is null or empty");
-
-			regions[i] = regionLocation;
-
-			LOG.debug(String.format(
-					"Region (%s) has start key (%s) and stop key (%s)", regions[i],
-					Bytes.toString(regStartKeys[i]), Bytes.toString(regStopKeys[i])));
-		}
-
-		byte[] startRow = HConstants.EMPTY_START_ROW;
-		byte[] stopRow = HConstants.EMPTY_END_ROW;
-
-		LOG.debug(String.format("Found min key (%s) and max key (%s)",
-				Bytes.toString(minKey), Bytes.toString(maxKey)));
-
-		LOG.debug("SOURCE MODE is : " + sourceMode);
-
-		switch (sourceMode) {
-			case SCAN_ALL:
-				startRow = HConstants.EMPTY_START_ROW;
-				stopRow = HConstants.EMPTY_END_ROW;
-
-				LOG.info(String.format(
-						"SCAN ALL: Found start key (%s) and stop key (%s)",
-						Bytes.toString(startRow), Bytes.toString(stopRow)));
-			break;
-
-			case SCAN_RANGE:
-				startRow = (startKey != null && startKey.length() != 0) ? Bytes
-						.toBytes(startKey) : HConstants.EMPTY_START_ROW;
-				stopRow = (stopKey != null && stopKey.length() != 0) ? Bytes
-						.toBytes(stopKey) : HConstants.EMPTY_END_ROW;
-
-				LOG.info(String.format(
-						"SCAN RANGE: Found start key (%s) and stop key (%s)",
-						Bytes.toString(startRow), Bytes.toString(stopRow)));
-			break;
-		}
-
-		switch (sourceMode) {
-			case EMPTY:
-			case SCAN_ALL:
-			case SCAN_RANGE: {
-				// startRow = (Bytes.compareTo(startRow, minKey) < 0) ? minKey :
-				// startRow;
-				// stopRow = (Bytes.compareTo(stopRow, maxKey) > 0) ? maxKey :
-				// stopRow;
-
-				final List<HBaseTableSplit> splits = new ArrayList<HBaseTableSplit>();
-
-				if (!useSalt) {
-
-					List<HRegionLocation> validRegions = table.getRegionsInRange(
-							startRow, stopRow);
-
-					int maxRegions = validRegions.size();
-					int currentRegion = 1;
-
-					for (HRegionLocation cRegion : validRegions) {
-						byte[] rStart = cRegion.getRegionInfo().getStartKey();
-						byte[] rStop = cRegion.getRegionInfo().getEndKey();
-
-						HServerAddress regionServerAddress = cRegion
-								.getServerAddress();
-						InetAddress regionAddress = regionServerAddress
-								.getInetSocketAddress().getAddress();
-						String regionLocation;
-						try {
-							regionLocation = reverseDNS(regionAddress);
-						} catch (NamingException e) {
-							LOG.error("Cannot resolve the host name for "
-									+ regionAddress + " because of " + e);
-							regionLocation = regionServerAddress.getHostname();
-						}
-
-						byte[] sStart = (startRow == HConstants.EMPTY_START_ROW
-								|| (Bytes.compareTo(startRow, rStart) <= 0) ? rStart
-								: startRow);
-						byte[] sStop = (stopRow == HConstants.EMPTY_END_ROW
-								|| (Bytes.compareTo(stopRow, rStop) >= 0 && rStop.length != 0) ? rStop
-								: stopRow);
-
-						LOG.debug(String.format(
-								"BOOL start (%s) stop (%s) length (%d)",
-								(startRow == HConstants.EMPTY_START_ROW || (Bytes
-										.compareTo(startRow, rStart) <= 0)),
-								(stopRow == HConstants.EMPTY_END_ROW || (Bytes
-										.compareTo(stopRow, rStop) >= 0)), rStop.length));
-
-						HBaseTableSplit split = new HBaseTableSplit(
-								table.getTableName(), sStart, sStop, regionLocation,
-								SourceMode.SCAN_RANGE, useSalt);
-
-						split.setEndRowInclusive(currentRegion == maxRegions);
-
-						currentRegion++;
-
-						LOG.debug(String
-								.format(
-										"START KEY (%s) STOP KEY (%s) rSTART (%s) rSTOP (%s) sSTART (%s) sSTOP (%s) REGION [%s] SPLIT [%s]",
-										Bytes.toString(startRow),
-										Bytes.toString(stopRow), Bytes.toString(rStart),
-										Bytes.toString(rStop), Bytes.toString(sStart),
-										Bytes.toString(sStop), cRegion.getHostnamePort(),
-										split));
-
-						splits.add(split);
-					}
-				} else {
-					LOG.debug("Using SALT : " + useSalt);
-
-					// Will return the start and the stop key with all possible
-					// prefixes.
-					for (int i = 0; i < regions.length; i++) {
-						Pair<byte[], byte[]>[] intervals = HBaseSalter
-								.getDistributedIntervals(startRow, stopRow,
-										regStartKeys[i], regStopKeys[i], prefixList);
-
-						for (Pair<byte[], byte[]> pair : intervals) {
-							LOG.debug("".format(
-									"Using SALT, Region (%s) Start (%s) Stop (%s)",
-									regions[i], Bytes.toString(pair.getFirst()),
-									Bytes.toString(pair.getSecond())));
-
-							HBaseTableSplit split = new HBaseTableSplit(
-									table.getTableName(), pair.getFirst(),
-									pair.getSecond(), regions[i], SourceMode.SCAN_RANGE,
-									useSalt);
-
-							split.setEndRowInclusive(true);
-							splits.add(split);
-						}
-					}
-				}
-
-				LOG.debug("RETURNED NO OF SPLITS: split -> " + splits.size());
-
-				// TODO: Change to HBaseMultiSplit
-				return convertToMultiSplitArray(splits);
-			}
-
-			case GET_LIST: {
-				// if( keyList == null || keyList.size() == 0 ) {
-				if (keyList == null) {
-					throw new IOException(
-							"Source Mode is GET_LIST but key list is EMPTY");
-				}
-
-				if (useSalt) {
-					TreeSet<String> tempKeyList = new TreeSet<String>();
-
-					for (String key : keyList) {
-						tempKeyList.add(HBaseSalter.addSaltPrefix(key));
-					}
-
-					keyList = tempKeyList;
-				}
-
-				LOG.info("".format("Splitting Key List (%s)", keyList));
-
-				final List<HBaseTableSplit> splits = new ArrayList<HBaseTableSplit>();
-
-				for (int i = 0; i < keys.getFirst().length; i++) {
-
-					if (!includeRegionInSplit(keys.getFirst()[i],
-							keys.getSecond()[i])) {
-						continue;
-					}
-
-					LOG.debug(String.format(
-							"Getting region (%s) subset (%s) to (%s)", regions[i],
-							Bytes.toString(regStartKeys[i]),
-							Bytes.toString(regStopKeys[i])));
-
-					Set<String> regionsSubSet = null;
-
-					if ((regStartKeys[i] == null || regStartKeys[i].length == 0)
-							&& (regStopKeys[i] == null || regStopKeys[i].length == 0)) {
-						LOG.debug("REGION start is empty");
-						LOG.debug("REGION stop is empty");
-						regionsSubSet = keyList;
-					} else if (regStartKeys[i] == null
-							|| regStartKeys[i].length == 0) {
-						LOG.debug("REGION start is empty");
-						regionsSubSet = keyList.headSet(
-								Bytes.toString(regStopKeys[i]), true);
-					} else if (regStopKeys[i] == null || regStopKeys[i].length == 0) {
-						LOG.debug("REGION stop is empty");
-						regionsSubSet = keyList.tailSet(
-								Bytes.toString(regStartKeys[i]), true);
-					} else if (Bytes.compareTo(regStartKeys[i], regStopKeys[i]) <= 0) {
-						regionsSubSet = keyList.subSet(
-								Bytes.toString(regStartKeys[i]), true,
-								Bytes.toString(regStopKeys[i]), true);
-					} else {
-						throw new IOException(String.format(
-								"For REGION (%s) Start Key (%s) > Stop Key(%s)",
-								regions[i], Bytes.toString(regStartKeys[i]),
-								Bytes.toString(regStopKeys[i])));
-					}
-
-					if (regionsSubSet == null || regionsSubSet.size() == 0) {
-						LOG.debug("EMPTY: Key is for region " + regions[i]
-								+ " is null");
-
-						continue;
-					}
-
-					TreeSet<String> regionKeyList = new TreeSet<String>(
-							regionsSubSet);
-
-					LOG.debug(String.format("Regions [%s] has key list <%s>",
-							regions[i], regionKeyList));
-
-					HBaseTableSplit split = new HBaseTableSplit(
-							table.getTableName(), regionKeyList, versions, regions[i],
-							SourceMode.GET_LIST, useSalt);
-					splits.add(split);
-				}
-
-				// if (splits.isEmpty()) {
-				// LOG.info("GOT EMPTY SPLITS");
-
-				// throw new IOException(
-				// "".format("Key List NOT found in any region"));
-
-				// HRegionLocation regLoc = table.getRegionLocation(
-				// HConstants.EMPTY_BYTE_ARRAY, false);
-				//
-				// if (null == regLoc) {
-				// throw new IOException("Expecting at least one region.");
-				// }
-				//
-				// HBaseTableSplit split = new HBaseTableSplit(
-				// table.getTableName(), HConstants.EMPTY_BYTE_ARRAY,
-				// HConstants.EMPTY_BYTE_ARRAY, regLoc.getHostnamePort()
-				// .split(Addressing.HOSTNAME_PORT_SEPARATOR)[0],
-				// SourceMode.EMPTY, false);
-				//
-				// splits.add(split);
-				// }
-
-				LOG.info("RETURNED SPLITS: split -> " + splits);
-
-				// TODO: Change to HBaseMultiSplit
-				return convertToMultiSplitArray(splits);
-			}
-
-			default:
-				throw new IOException("Unknown source Mode : " + sourceMode);
-		}
-	}
-
-	private String reverseDNS(InetAddress ipAddress) throws NamingException {
-		String hostName = this.reverseDNSCacheMap.get(ipAddress);
-		if (hostName == null) {
-			hostName = Strings.domainNamePointerToHostName(DNS.reverseDns(
-					ipAddress, this.nameServer));
-			this.reverseDNSCacheMap.put(ipAddress, hostName);
-		}
-		return hostName;
-	}
-
-	@Override
-	public RecordReader<ImmutableBytesWritable, Result> getRecordReader(
-			InputSplit split, JobConf job, Reporter reporter) throws IOException {
-
-		if (!(split instanceof HBaseMultiInputSplit))
-			throw new IOException("Table Split is not type HBaseMultiInputSplit");
-
-		HBaseMultiInputSplit tSplit = (HBaseMultiInputSplit) split;
-
-		HBaseRecordReader trr = new HBaseRecordReader(tSplit);
-
-		trr.setHTable(this.table);
-		trr.setInputColumns(this.inputColumns);
-		trr.setRowFilter(this.rowFilter);
-		trr.setUseSalt(useSalt);
-
-		trr.setNextSplit();
-
-		return trr;
-	}
-
-	/* Configuration Section */
-
-	/**
-	 * space delimited list of columns
-	 */
-	public static final String COLUMN_LIST = "hbase.tablecolumns";
-
-	/**
-	 * Use this jobconf param to specify the input table
-	 */
-	private static final String INPUT_TABLE = "hbase.inputtable";
-
-	private String startKey = null;
-	private String stopKey = null;
-
-	private SourceMode sourceMode = SourceMode.EMPTY;
-	private TreeSet<String> keyList = null;
-	private int versions = 1;
-	private boolean useSalt = false;
-	private String prefixList = HBaseSalter.DEFAULT_PREFIX_LIST;
-
-	public void configure(JobConf job) {
-		String tableName = getTableName(job);
-		String colArg = job.get(COLUMN_LIST);
-		String[] colNames = colArg.split(" ");
-		byte[][] m_cols = new byte[colNames.length][];
-		for (int i = 0; i < m_cols.length; i++) {
-			m_cols[i] = Bytes.toBytes(colNames[i]);
-		}
-		setInputColumns(m_cols);
-
-		try {
-			setHTable(new HTable(HBaseConfiguration.create(job), tableName));
-		} catch (Exception e) {
-			LOG.error("************* Table could not be created");
-			LOG.error(StringUtils.stringifyException(e));
-		}
-
-		LOG.debug("Entered : " + this.getClass() + " : configure()");
-
-		useSalt = job.getBoolean(
-				String.format(HBaseConstants.USE_SALT, getTableName(job)), false);
-		prefixList = job.get(
-				String.format(HBaseConstants.SALT_PREFIX, getTableName(job)),
-				HBaseSalter.DEFAULT_PREFIX_LIST);
-
-		sourceMode = SourceMode.valueOf(job.get(String.format(
-				HBaseConstants.SOURCE_MODE, getTableName(job))));
-
-		LOG.info(String.format("GOT SOURCE MODE (%s) as (%s) and finally", String
-				.format(HBaseConstants.SOURCE_MODE, getTableName(job)), job
-				.get(String.format(HBaseConstants.SOURCE_MODE, getTableName(job))),
-				sourceMode));
-
-		switch (sourceMode) {
-			case SCAN_RANGE:
-				LOG.info("HIT SCAN_RANGE");
-
-				startKey = getJobProp(job,
-						String.format(HBaseConstants.START_KEY, getTableName(job)));
-				stopKey = getJobProp(job,
-						String.format(HBaseConstants.STOP_KEY, getTableName(job)));
-
-				LOG.info(String.format("Setting start key (%s) and stop key (%s)",
-						startKey, stopKey));
-			break;
-
-			case GET_LIST:
-				LOG.info("HIT GET_LIST");
-
-				Collection<String> keys = job.getStringCollection(String.format(
-						HBaseConstants.KEY_LIST, getTableName(job)));
-				keyList = new TreeSet<String>(keys);
-
-				versions = job.getInt(
-						String.format(HBaseConstants.VERSIONS, getTableName(job)), 1);
-
-				LOG.debug("GOT KEY LIST : " + keys);
-				LOG.debug(String.format("SETTING key list (%s)", keyList));
-
-			break;
-
-			case EMPTY:
-				LOG.info("HIT EMPTY");
-
-				sourceMode = SourceMode.SCAN_ALL;
-			break;
-
-			default:
-				LOG.info("HIT DEFAULT");
-
-			break;
-		}
-	}
-
-	public void validateInput(JobConf job) throws IOException {
-		// expecting exactly one path
-		String tableName = getTableName(job);
-
-		if (tableName == null) {
-			throw new IOException("expecting one table name");
-		}
-		LOG.debug(String.format("Found Table name [%s]", tableName));
-
-		// connected to table?
-		if (getHTable() == null) {
-			throw new IOException("could not connect to table '" + tableName + "'");
-		}
-		LOG.debug(String.format("Found Table [%s]", getHTable().getTableName()));
-
-		// expecting at least one column
-		String colArg = job.get(COLUMN_LIST);
-		if (colArg == null || colArg.length() == 0) {
-			throw new IOException("expecting at least one column");
-		}
-		LOG.debug(String.format("Found Columns [%s]", colArg));
-
-		LOG.debug(String.format("Found Start & STop Key [%s][%s]", startKey,
-				stopKey));
-
-		if (sourceMode == SourceMode.EMPTY) {
-			throw new IOException("SourceMode should not be EMPTY");
-		}
-
-		if (sourceMode == SourceMode.GET_LIST
-				&& (keyList == null || keyList.size() == 0)) {
-			throw new IOException("Source mode is GET_LIST bu key list is empty");
-		}
-	}
-
-	/* Getters & Setters */
-	private HTable getHTable() {
-		return this.table;
-	}
-
-	private void setHTable(HTable ht) {
-		this.table = ht;
-	}
-
-	private void setInputColumns(byte[][] ic) {
-		this.inputColumns = ic;
-	}
-
-	private void setJobProp(JobConf job, String key, String value) {
-		if (job.get(key) != null)
-			throw new RuntimeException(String.format(
-					"Job Conf already has key [%s] with value [%s]", key,
-					job.get(key)));
-		job.set(key, value);
-	}
-
-	private String getJobProp(JobConf job, String key) {
-		return job.get(key);
-	}
-
-	public static void setTableName(JobConf job, String tableName) {
-		// Make sure that table has not been set before
-		String oldTableName = getTableName(job);
-		if (oldTableName != null) {
-			throw new RuntimeException("table name already set to: '"
-					+ oldTableName + "'");
-		}
-
-		job.set(INPUT_TABLE, tableName);
-	}
-
-	public static String getTableName(JobConf job) {
-		return job.get(INPUT_TABLE);
-	}
-
-	protected boolean includeRegionInSplit(final byte[] startKey,
-			final byte[] endKey) {
-		return true;
-	}
-}
diff --git a/src/main/java/parallelai/spyglass/hbase/HBaseInputFormatBase.java b/src/main/java/parallelai/spyglass/hbase/HBaseInputFormatBase.java
new file mode 100644
index 0000000..2f3047b
--- /dev/null
+++ b/src/main/java/parallelai/spyglass/hbase/HBaseInputFormatBase.java
@@ -0,0 +1,172 @@
+package parallelai.spyglass.hbase;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.hadoop.hbase.HBaseConfiguration;
+import org.apache.hadoop.hbase.client.HTable;
+import org.apache.hadoop.hbase.client.Result;
+import org.apache.hadoop.hbase.filter.Filter;
+import org.apache.hadoop.hbase.io.ImmutableBytesWritable;
+import org.apache.hadoop.hbase.util.Bytes;
+import org.apache.hadoop.mapred.InputFormat;
+import org.apache.hadoop.mapred.JobConf;
+import org.apache.hadoop.mapred.JobConfigurable;
+import org.apache.hadoop.util.StringUtils;
+
+import java.util.Collection;
+import java.util.TreeSet;
+import java.util.UUID;
+
+/**
+ * Created with IntelliJ IDEA.
+ * User: chand_000
+ * Date: 29/08/13
+ * Time: 12:43
+ * To change this template use File | Settings | File Templates.
+ */
+public abstract class HBaseInputFormatBase implements InputFormat<ImmutableBytesWritable, Result>, JobConfigurable {
+
+    private final Log LOG = LogFactory.getLog(HBaseInputFormatBase.class);
+
+    protected final String id = UUID.randomUUID().toString();
+    protected byte[][] inputColumns;
+    protected HTable table;
+    protected Filter rowFilter;
+
+    public static final String COLUMN_LIST = "hbase.tablecolumns";
+
+    /**
+     * Use this jobconf param to specify the input table
+     */
+    protected static final String INPUT_TABLE = "hbase.inputtable";
+
+    protected String startKey = null;
+    protected String stopKey = null;
+
+    protected HBaseConstants.SourceMode sourceMode = HBaseConstants.SourceMode.EMPTY;
+    protected TreeSet<String> keyList = null;
+    protected int versions = 1;
+    protected boolean useSalt = false;
+    protected String prefixList = HBaseSalter.DEFAULT_PREFIX_LIST;
+
+
+
+    @Override
+    public void configure(JobConf job) {
+        String tableName = getTableName(job);
+        String colArg = job.get(COLUMN_LIST);
+        String[] colNames = colArg.split(" ");
+        byte[][] m_cols = new byte[colNames.length][];
+        for (int i = 0; i < m_cols.length; i++) {
+            m_cols[i] = Bytes.toBytes(colNames[i]);
+        }
+        setInputColumns(m_cols);
+
+        try {
+            setHTable(new HTable(HBaseConfiguration.create(job), tableName));
+        } catch (Exception e) {
+            LOG.error("************* Table could not be created");
+            LOG.error(StringUtils.stringifyException(e));
+        }
+
+        LOG.debug("Entered : " + this.getClass() + " : configure()");
+
+        useSalt = job.getBoolean(
+                String.format(HBaseConstants.USE_SALT, getTableName(job)), false);
+        prefixList = job.get(
+                String.format(HBaseConstants.SALT_PREFIX, getTableName(job)),
+                HBaseSalter.DEFAULT_PREFIX_LIST);
+
+        sourceMode = HBaseConstants.SourceMode.valueOf(job.get(String.format(
+                HBaseConstants.SOURCE_MODE, getTableName(job))));
+
+        LOG.info(String.format("GOT SOURCE MODE (%s) as (%s) and finally", String
+                .format(HBaseConstants.SOURCE_MODE, getTableName(job)), job
+                .get(String.format(HBaseConstants.SOURCE_MODE, getTableName(job))),
+                sourceMode));
+
+        switch (sourceMode) {
+            case SCAN_RANGE:
+                LOG.debug("HIT SCAN_RANGE");
+
+                startKey = getJobProp(job,
+                        String.format(HBaseConstants.START_KEY, getTableName(job)));
+                stopKey = getJobProp(job,
+                        String.format(HBaseConstants.STOP_KEY, getTableName(job)));
+
+                LOG.debug(String.format("Setting start key (%s) and stop key (%s)",
+                        startKey, stopKey));
+                break;
+
+            case GET_LIST:
+                LOG.debug("HIT GET_LIST");
+
+                Collection<String> keys = job.getStringCollection(String.format(
+                        HBaseConstants.KEY_LIST, getTableName(job)));
+                keyList = new TreeSet<String>(keys);
+
+                versions = job.getInt(
+                        String.format(HBaseConstants.VERSIONS, getTableName(job)), 1);
+
+                LOG.debug("GOT KEY LIST : " + keys);
+                LOG.debug(String.format("SETTING key list (%s)", keyList));
+
+                break;
+
+            case EMPTY:
+                LOG.info("HIT EMPTY");
+
+                sourceMode = HBaseConstants.SourceMode.SCAN_ALL;
+                break;
+
+            default:
+                LOG.info("HIT DEFAULT");
+
+                break;
+        }
+    }
+
+    /* Getters & Setters */
+    protected HTable getHTable() {
+        return this.table;
+    }
+
+    protected void setHTable(HTable ht) {
+        this.table = ht;
+    }
+
+    protected void setInputColumns(byte[][] ic) {
+        this.inputColumns = ic;
+    }
+
+    protected void setJobProp(JobConf job, String key, String value) {
+        if (job.get(key) != null)
+            throw new RuntimeException(String.format(
+                    "Job Conf already has key [%s] with value [%s]", key,
+                    job.get(key)));
+        job.set(key, value);
+    }
+
+    protected String getJobProp(JobConf job, String key) {
+        return job.get(key);
+    }
+
+    public static void setTableName(JobConf job, String tableName) {
+        // Make sure that table has not been set before
+        String oldTableName = getTableName(job);
+        if (oldTableName != null) {
+            throw new RuntimeException("table name already set to: '"
+                    + oldTableName + "'");
+        }
+
+        job.set(INPUT_TABLE, tableName);
+    }
+
+    public static String getTableName(JobConf job) {
+        return job.get(INPUT_TABLE);
+    }
+
+    protected void setParms(HBaseRecordReaderBase trr) {
+
+    }
+}
diff --git a/src/main/java/parallelai/spyglass/hbase/HBaseInputFormat_SINGLE.java b/src/main/java/parallelai/spyglass/hbase/HBaseInputFormatGranular.java
index 96bfea1..929e9d8 100644
--- a/src/main/java/parallelai/spyglass/hbase/HBaseInputFormat_SINGLE.java
+++ b/src/main/java/parallelai/spyglass/hbase/HBaseInputFormatGranular.java
@@ -37,17 +37,10 @@ import org.apache.hadoop.util.StringUtils;
 
 import parallelai.spyglass.hbase.HBaseConstants.SourceMode;
 
-public class HBaseInputFormat_SINGLE implements
-		InputFormat<ImmutableBytesWritable, Result>, JobConfigurable {
+public class HBaseInputFormatGranular extends HBaseInputFormatBase {
 
-	private final Log LOG = LogFactory.getLog(HBaseInputFormat_SINGLE.class);
+	private final Log LOG = LogFactory.getLog(HBaseInputFormatGranular.class);
 
-	private final String id = UUID.randomUUID().toString();
-
-	private byte[][] inputColumns;
-	private HTable table;
-	// private HBaseRecordReader tableRecordReader;
-	private Filter rowFilter;
 	// private String tableName = "";
 
 	private HashMap<InetAddress, String> reverseDNSCacheMap = new HashMap<InetAddress, String>();
@@ -58,7 +51,7 @@ public class HBaseInputFormat_SINGLE implements
 
 	@SuppressWarnings("deprecation")
 	@Override
-	public InputSplit[] getSplits(JobConf job, int numSplits) throws IOException {
+	public HBaseTableSplitGranular[] getSplits(JobConf job, int numSplits) throws IOException {
 		if (this.table == null) {
 			throw new IOException("No table was provided");
 		}
@@ -78,8 +71,8 @@ public class HBaseInputFormat_SINGLE implements
 				throw new IOException("Expecting at least one region.");
 			}
 
-			List<HBaseTableSplit> splits = new ArrayList<HBaseTableSplit>(1);
-			HBaseTableSplit split = new HBaseTableSplit(table.getTableName(),
+			List<HBaseTableSplitGranular> splits = new ArrayList<HBaseTableSplitGranular>(1);
+			HBaseTableSplitGranular split = new HBaseTableSplitGranular(table.getTableName(),
 					HConstants.EMPTY_BYTE_ARRAY, HConstants.EMPTY_BYTE_ARRAY, regLoc
 							.getHostnamePort().split(
 									Addressing.HOSTNAME_PORT_SEPARATOR)[0],
@@ -87,7 +80,7 @@ public class HBaseInputFormat_SINGLE implements
 
 			splits.add(split);
 
-			return splits.toArray(new HBaseTableSplit[splits.size()]);
+			return splits.toArray(new HBaseTableSplitGranular[splits.size()]);
 		}
 
 		if (keys.getSecond() == null || keys.getSecond().length == 0) {
@@ -173,7 +166,7 @@ public class HBaseInputFormat_SINGLE implements
 				startRow = HConstants.EMPTY_START_ROW;
 				stopRow = HConstants.EMPTY_END_ROW;
 
-				LOG.info(String.format(
+				LOG.debug(String.format(
 						"SCAN ALL: Found start key (%s) and stop key (%s)",
 						Bytes.toString(startRow), Bytes.toString(stopRow)));
 			break;
@@ -184,7 +177,7 @@ public class HBaseInputFormat_SINGLE implements
 				stopRow = (stopKey != null && stopKey.length() != 0) ? Bytes
 						.toBytes(stopKey) : HConstants.EMPTY_END_ROW;
 
-				LOG.info(String.format(
+				LOG.debug(String.format(
 						"SCAN RANGE: Found start key (%s) and stop key (%s)",
 						Bytes.toString(startRow), Bytes.toString(stopRow)));
 			break;
@@ -199,7 +192,7 @@ public class HBaseInputFormat_SINGLE implements
 				// stopRow = (Bytes.compareTo(stopRow, maxKey) > 0) ? maxKey :
 				// stopRow;
 
-				List<HBaseTableSplit> splits = new ArrayList<HBaseTableSplit>();
+				List<HBaseTableSplitGranular> splits = new ArrayList<HBaseTableSplitGranular>();
 
 				if (!useSalt) {
 
@@ -240,7 +233,7 @@ public class HBaseInputFormat_SINGLE implements
 								(stopRow == HConstants.EMPTY_END_ROW || (Bytes
 										.compareTo(stopRow, rStop) >= 0)), rStop.length));
 
-						HBaseTableSplit split = new HBaseTableSplit(
+						HBaseTableSplitGranular split = new HBaseTableSplitGranular(
 								table.getTableName(), sStart, sStop, regionLocation,
 								SourceMode.SCAN_RANGE, useSalt);
 
@@ -270,12 +263,12 @@ public class HBaseInputFormat_SINGLE implements
 										regStartKeys[i], regStopKeys[i], prefixList);
 
 						for (Pair<byte[], byte[]> pair : intervals) {
-							LOG.info("".format(
+							LOG.debug("".format(
 									"Using SALT, Region (%s) Start (%s) Stop (%s)",
 									regions[i], Bytes.toString(pair.getFirst()),
 									Bytes.toString(pair.getSecond())));
 
-							HBaseTableSplit split = new HBaseTableSplit(
+							HBaseTableSplitGranular split = new HBaseTableSplitGranular(
 									table.getTableName(), pair.getFirst(),
 									pair.getSecond(), regions[i], SourceMode.SCAN_RANGE,
 									useSalt);
@@ -286,12 +279,12 @@ public class HBaseInputFormat_SINGLE implements
 					}
 				}
 
-				LOG.info("RETURNED NO OF SPLITS: split -> " + splits.size());
-				for (HBaseTableSplit s : splits) {
-					LOG.info("RETURNED SPLITS: split -> " + s);
+				LOG.debug("RETURNED NO OF SPLITS: split -> " + splits.size());
+				for (HBaseTableSplitGranular s : splits) {
+					LOG.debug("RETURNED SPLITS: split -> " + s);
 				}
 
-				return splits.toArray(new HBaseTableSplit[splits.size()]);
+				return splits.toArray(new HBaseTableSplitGranular[splits.size()]);
 			}
 
 			case GET_LIST: {
@@ -313,7 +306,7 @@ public class HBaseInputFormat_SINGLE implements
 
 				LOG.debug("".format("Splitting Key List (%s)", keyList));
 
-				List<HBaseTableSplit> splits = new ArrayList<HBaseTableSplit>();
+				List<HBaseTableSplitGranular> splits = new ArrayList<HBaseTableSplitGranular>();
 
 				for (int i = 0; i < keys.getFirst().length; i++) {
 
@@ -325,7 +318,7 @@ public class HBaseInputFormat_SINGLE implements
 					LOG.debug(String.format(
 							"Getting region (%s) subset (%s) to (%s)", regions[i],
 							Bytes.toString(regStartKeys[i]),
-							Bytes.toString(regStartKeys[i])));
+							Bytes.toString(regStopKeys[i])));
 
 					Set<String> regionsSubSet = null;
 
@@ -367,7 +360,7 @@ public class HBaseInputFormat_SINGLE implements
 					LOG.debug(String.format("Regions [%s] has key list <%s>",
 							regions[i], regionKeyList));
 
-					HBaseTableSplit split = new HBaseTableSplit(
+					HBaseTableSplitGranular split = new HBaseTableSplitGranular(
 							table.getTableName(), regionKeyList, versions, regions[i],
 							SourceMode.GET_LIST, useSalt);
 					splits.add(split);
@@ -375,7 +368,7 @@ public class HBaseInputFormat_SINGLE implements
 
 				LOG.debug("RETURNED SPLITS: split -> " + splits);
 
-				return splits.toArray(new HBaseTableSplit[splits.size()]);
+				return splits.toArray(new HBaseTableSplitGranular[splits.size()]);
 			}
 
 			default:
@@ -397,45 +390,17 @@ public class HBaseInputFormat_SINGLE implements
 	public RecordReader<ImmutableBytesWritable, Result> getRecordReader(
 			InputSplit split, JobConf job, Reporter reporter) throws IOException {
 
-		if (!(split instanceof HBaseTableSplit))
-			throw new IOException("Table Split is not type HBaseTableSplit");
-
-		HBaseTableSplit tSplit = (HBaseTableSplit) split;
-
-		HBaseRecordReader_SINGLE trr = new HBaseRecordReader_SINGLE();
-
-		switch (tSplit.getSourceMode()) {
-			case SCAN_ALL:
-			case SCAN_RANGE: {
-				LOG.debug(String.format(
-						"For split [%s] we have start key (%s) and stop key (%s)",
-						tSplit, tSplit.getStartRow(), tSplit.getEndRow()));
-
-				trr.setStartRow(tSplit.getStartRow());
-				trr.setEndRow(tSplit.getEndRow());
-				trr.setEndRowInclusive(tSplit.getEndRowInclusive());
-				trr.setUseSalt(useSalt);
-			}
+        LOG.info("GRANULAR SPLIT -> " + split);
 
-			break;
+        if (!(split instanceof HBaseTableSplitGranular))
+			throw new IOException("Table Split is not type HBaseTableSplitGranular");
 
-			case GET_LIST: {
-				LOG.debug(String.format("For split [%s] we have key list (%s)",
-						tSplit, tSplit.getKeyList()));
+		HBaseTableSplitGranular tSplit = (HBaseTableSplitGranular) split;
 
-				trr.setKeyList(tSplit.getKeyList());
-				trr.setVersions(tSplit.getVersions());
-				trr.setUseSalt(useSalt);
-			}
+		HBaseRecordReaderGranular trr = new HBaseRecordReaderGranular();
 
-			break;
-
-			default:
-				throw new IOException("Unknown source mode : "
-						+ tSplit.getSourceMode());
-		}
+        HBaseConfigUtils.setRecordReaderParms(trr, tSplit);
 
-		trr.setSourceMode(tSplit.getSourceMode());
 		trr.setHTable(this.table);
 		trr.setInputColumns(this.inputColumns);
 		trr.setRowFilter(this.rowFilter);
@@ -450,95 +415,6 @@ public class HBaseInputFormat_SINGLE implements
 	/**
 	 * space delimited list of columns
 	 */
-	public static final String COLUMN_LIST = "hbase.tablecolumns";
-
-	/**
-	 * Use this jobconf param to specify the input table
-	 */
-	private static final String INPUT_TABLE = "hbase.inputtable";
-
-	private String startKey = null;
-	private String stopKey = null;
-
-	private SourceMode sourceMode = SourceMode.EMPTY;
-	private TreeSet<String> keyList = null;
-	private int versions = 1;
-	private boolean useSalt = false;
-	private String prefixList = HBaseSalter.DEFAULT_PREFIX_LIST;
-
-	public void configure(JobConf job) {
-		String tableName = getTableName(job);
-		String colArg = job.get(COLUMN_LIST);
-		String[] colNames = colArg.split(" ");
-		byte[][] m_cols = new byte[colNames.length][];
-		for (int i = 0; i < m_cols.length; i++) {
-			m_cols[i] = Bytes.toBytes(colNames[i]);
-		}
-		setInputColumns(m_cols);
-
-		try {
-			setHTable(new HTable(HBaseConfiguration.create(job), tableName));
-		} catch (Exception e) {
-			LOG.error("************* Table could not be created");
-			LOG.error(StringUtils.stringifyException(e));
-		}
-
-		LOG.debug("Entered : " + this.getClass() + " : configure()");
-
-		useSalt = job.getBoolean(
-				String.format(HBaseConstants.USE_SALT, getTableName(job)), false);
-		prefixList = job.get(
-				String.format(HBaseConstants.SALT_PREFIX, getTableName(job)),
-				HBaseSalter.DEFAULT_PREFIX_LIST);
-
-		sourceMode = SourceMode.valueOf(job.get(String.format(
-				HBaseConstants.SOURCE_MODE, getTableName(job))));
-
-		LOG.info(String.format("GOT SOURCE MODE (%s) as (%s) and finally", String
-				.format(HBaseConstants.SOURCE_MODE, getTableName(job)), job
-				.get(String.format(HBaseConstants.SOURCE_MODE, getTableName(job))),
-				sourceMode));
-
-		switch (sourceMode) {
-			case SCAN_RANGE:
-				LOG.info("HIT SCAN_RANGE");
-
-				startKey = getJobProp(job,
-						String.format(HBaseConstants.START_KEY, getTableName(job)));
-				stopKey = getJobProp(job,
-						String.format(HBaseConstants.STOP_KEY, getTableName(job)));
-
-				LOG.info(String.format("Setting start key (%s) and stop key (%s)",
-						startKey, stopKey));
-			break;
-
-			case GET_LIST:
-				LOG.info("HIT GET_LIST");
-
-				Collection<String> keys = job.getStringCollection(String.format(
-						HBaseConstants.KEY_LIST, getTableName(job)));
-				keyList = new TreeSet<String>(keys);
-
-				versions = job.getInt(
-						String.format(HBaseConstants.VERSIONS, getTableName(job)), 1);
-
-				LOG.debug("GOT KEY LIST : " + keys);
-				LOG.debug(String.format("SETTING key list (%s)", keyList));
-
-			break;
-
-			case EMPTY:
-				LOG.info("HIT EMPTY");
-
-				sourceMode = SourceMode.SCAN_ALL;
-			break;
-
-			default:
-				LOG.info("HIT DEFAULT");
-
-			break;
-		}
-	}
 
 	public void validateInput(JobConf job) throws IOException {
 		// expecting exactly one path
@@ -575,45 +451,6 @@ public class HBaseInputFormat_SINGLE implements
 		}
 	}
 
-	/* Getters & Setters */
-	private HTable getHTable() {
-		return this.table;
-	}
-
-	private void setHTable(HTable ht) {
-		this.table = ht;
-	}
-
-	private void setInputColumns(byte[][] ic) {
-		this.inputColumns = ic;
-	}
-
-	private void setJobProp(JobConf job, String key, String value) {
-		if (job.get(key) != null)
-			throw new RuntimeException(String.format(
-					"Job Conf already has key [%s] with value [%s]", key,
-					job.get(key)));
-		job.set(key, value);
-	}
-
-	private String getJobProp(JobConf job, String key) {
-		return job.get(key);
-	}
-
-	public static void setTableName(JobConf job, String tableName) {
-		// Make sure that table has not been set before
-		String oldTableName = getTableName(job);
-		if (oldTableName != null) {
-			throw new RuntimeException("table name already set to: '"
-					+ oldTableName + "'");
-		}
-
-		job.set(INPUT_TABLE, tableName);
-	}
-
-	public static String getTableName(JobConf job) {
-		return job.get(INPUT_TABLE);
-	}
 
 	protected boolean includeRegionInSplit(final byte[] startKey,
 			final byte[] endKey) {
diff --git a/src/main/java/parallelai/spyglass/hbase/HBaseInputFormatRegional.java b/src/main/java/parallelai/spyglass/hbase/HBaseInputFormatRegional.java
new file mode 100644
index 0000000..eadb57e
--- /dev/null
+++ b/src/main/java/parallelai/spyglass/hbase/HBaseInputFormatRegional.java
@@ -0,0 +1,99 @@
+package parallelai.spyglass.hbase;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.hadoop.hbase.client.Result;
+import org.apache.hadoop.hbase.io.ImmutableBytesWritable;
+import org.apache.hadoop.mapred.*;
+
+import java.io.IOException;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.List;
+
+/**
+ * Created with IntelliJ IDEA.
+ * User: chand_000
+ * Date: 29/08/13
+ * Time: 12:24
+ * To change this template use File | Settings | File Templates.
+ */
+public class HBaseInputFormatRegional extends HBaseInputFormatBase {
+    private HBaseInputFormatGranular granular = new HBaseInputFormatGranular();
+    private final Log LOG = LogFactory.getLog(HBaseInputFormatRegional.class);
+
+
+    @Override
+    public HBaseTableSplitRegional[] getSplits(JobConf job, int numSplits) throws IOException {
+        granular.configure(job);
+        HBaseTableSplitGranular[] gSplits = granular.getSplits(job, numSplits);
+
+        HBaseTableSplitRegional[] splits = convertToMultiSplitArray( gSplits );
+
+        if( splits == null ) throw new IOException("Not sure WTF is going on? splits is NULL");
+
+        LOG.info("GRANULAR => " + gSplits);
+        LOG.info("REGIONAL => " + splits);
+
+        return splits;
+    }
+
+    @Override
+    public RecordReader<ImmutableBytesWritable, Result> getRecordReader(InputSplit inputSplit, JobConf entries, Reporter reporter) throws IOException {
+        if (!(inputSplit instanceof HBaseTableSplitRegional))
+            throw new IOException("Table Split is not type HBaseTableSplitRegional");
+
+        LOG.info("REGIONAL SPLIT -> " + inputSplit);
+
+        HBaseTableSplitRegional tSplit = (HBaseTableSplitRegional)inputSplit;
+
+        HBaseRecordReaderRegional trr = new HBaseRecordReaderRegional();
+
+        HBaseConfigUtils.setRecordReaderParms(trr, tSplit);
+
+        trr.setHTable(this.table);
+        trr.setInputColumns(this.inputColumns);
+        trr.setRowFilter(this.rowFilter);
+
+        trr.init(tSplit);
+
+        return trr;
+    }
+
+    private HBaseTableSplitRegional[] convertToMultiSplitArray(
+            HBaseTableSplitGranular[] splits) throws IOException {
+
+        if (splits == null)
+            throw new IOException("The list of splits is null => " + splits);
+
+        HashMap<String, HBaseTableSplitRegional> regionSplits = new HashMap<String, HBaseTableSplitRegional>();
+
+        for (HBaseTableSplitGranular hbt : splits) {
+            HBaseTableSplitRegional mis = null;
+            if (regionSplits.containsKey(hbt.getRegionLocation())) {
+                mis = regionSplits.get(hbt.getRegionLocation());
+            } else {
+                regionSplits.put(hbt.getRegionLocation(), new HBaseTableSplitRegional(
+                        hbt.getRegionLocation()));
+                mis = regionSplits.get(hbt.getRegionLocation());
+            }
+
+            mis.addSplit(hbt);
+            regionSplits.put(hbt.getRegionLocation(), mis);
+        }
+
+//        for(String region : regionSplits.keySet() ) {
+//            regionSplits.get(region)
+//        }
+
+        Collection<HBaseTableSplitRegional> outVals = regionSplits.values();
+
+        LOG.debug("".format("Returning array of splits : %s", outVals));
+
+        if (outVals == null)
+            throw new IOException("The list of multi input splits were null");
+
+        return outVals.toArray(new HBaseTableSplitRegional[outVals.size()]);
+    }
+
+}
diff --git a/src/main/java/parallelai/spyglass/hbase/HBaseMultiInputSplit.java b/src/main/java/parallelai/spyglass/hbase/HBaseMultiInputSplit.java
deleted file mode 100644
index 02e7f7b..0000000
--- a/src/main/java/parallelai/spyglass/hbase/HBaseMultiInputSplit.java
+++ /dev/null
@@ -1,111 +0,0 @@
-package parallelai.spyglass.hbase;
-
-import java.io.DataInput;
-import java.io.DataOutput;
-import java.io.IOException;
-import java.io.Serializable;
-import java.util.ArrayList;
-import java.util.List;
-
-import org.apache.commons.lang.SerializationUtils;
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-import org.apache.hadoop.hbase.util.Bytes;
-import org.apache.hadoop.mapred.InputSplit;
-
-public class HBaseMultiInputSplit implements InputSplit,
-		Comparable<HBaseMultiInputSplit>, Serializable {
-
-	private final Log LOG = LogFactory.getLog(HBaseMultiInputSplit.class);
-
-	private List<HBaseTableSplit> splits = new ArrayList<HBaseTableSplit>();
-
-	private String regionLocation = null;
-
-	/** default constructor */
-	private HBaseMultiInputSplit() {
-
-	}
-
-	public HBaseMultiInputSplit(String regionLocation) {
-		this.regionLocation = regionLocation;
-	}
-
-	/** @return the region's hostname */
-	public String getRegionLocation() {
-		LOG.debug("REGION GETTER : " + regionLocation);
-
-		return this.regionLocation;
-	}
-
-	@Override
-	public void readFields(DataInput in) throws IOException {
-		LOG.debug("READ ME : " + in.toString());
-
-		int s = Bytes.toInt(Bytes.readByteArray(in));
-
-		for (int i = 0; i < s; i++) {
-			HBaseTableSplit hbts = (HBaseTableSplit) SerializationUtils
-					.deserialize(Bytes.readByteArray(in));
-			splits.add(hbts);
-		}
-
-		LOG.debug("READ and CREATED : " + this);
-	}
-
-	@Override
-	public void write(DataOutput out) throws IOException {
-		LOG.debug("WRITE : " + this);
-
-		Bytes.writeByteArray(out, Bytes.toBytes(splits.size()));
-
-		for (HBaseTableSplit hbts : splits) {
-			Bytes.writeByteArray(out, SerializationUtils.serialize(hbts));
-		}
-
-		LOG.debug("WROTE : " + out.toString());
-	}
-
-	@Override
-	public String toString() {
-		StringBuffer str = new StringBuffer();
-		str.append("HBaseMultiSplit : ");
-
-		for (HBaseTableSplit hbt : splits) {
-			str.append(" [" + hbt.toString() + "]");
-		}
-
-		return str.toString();
-	}
-
-	@Override
-	public int compareTo(HBaseMultiInputSplit o) {
-		// TODO: Make this comparison better
-		return (splits.size() - o.splits.size());
-	}
-
-	@Override
-	public long getLength() throws IOException {
-		return splits.size();
-	}
-
-	@Override
-	public String[] getLocations() throws IOException {
-		LOG.debug("REGION ARRAY : " + regionLocation);
-
-		return new String[] { this.regionLocation };
-	}
-
-	public void addSplit(HBaseTableSplit hbt) throws IOException {
-		if (hbt.getRegionLocation().equals(regionLocation))
-			splits.add(hbt);
-		else
-			throw new IOException("HBaseTableSplit Region Location "
-					+ hbt.getRegionLocation()
-					+ " does NOT match MultiSplit Region Location " + regionLocation);
-	}
-
-	public List<HBaseTableSplit> getSplits() {
-		return splits;
-	}
-}
\ No newline at end of file
diff --git a/src/main/java/parallelai/spyglass/hbase/HBaseRecordReader.java b/src/main/java/parallelai/spyglass/hbase/HBaseRecordReader.java
deleted file mode 100644
index 5d7dbdd..0000000
--- a/src/main/java/parallelai/spyglass/hbase/HBaseRecordReader.java
+++ /dev/null
@@ -1,609 +0,0 @@
-package parallelai.spyglass.hbase;
-
-import static org.apache.hadoop.hbase.mapreduce.TableRecordReaderImpl.LOG_PER_ROW_COUNT;
-
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.TreeSet;
-import java.util.Vector;
-
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.hbase.KeyValue;
-import org.apache.hadoop.hbase.client.Get;
-import org.apache.hadoop.hbase.client.HTable;
-import org.apache.hadoop.hbase.client.Result;
-import org.apache.hadoop.hbase.client.ResultScanner;
-import org.apache.hadoop.hbase.client.Scan;
-import org.apache.hadoop.hbase.client.ScannerCallable;
-import org.apache.hadoop.hbase.filter.Filter;
-import org.apache.hadoop.hbase.io.ImmutableBytesWritable;
-import org.apache.hadoop.hbase.mapreduce.TableInputFormat;
-import org.apache.hadoop.hbase.util.Bytes;
-import org.apache.hadoop.hbase.util.Writables;
-import org.apache.hadoop.mapred.RecordReader;
-import org.apache.hadoop.util.StringUtils;
-
-import parallelai.spyglass.hbase.HBaseConstants.SourceMode;
-
-public class HBaseRecordReader implements
-		RecordReader<ImmutableBytesWritable, Result> {
-
-	static final Log LOG = LogFactory.getLog(HBaseRecordReader.class);
-
-	private byte[] startRow;
-	private byte[] endRow;
-	private byte[] lastSuccessfulRow;
-	private TreeSet<String> keyList;
-	private SourceMode sourceMode;
-	private Filter trrRowFilter;
-	private ResultScanner scanner;
-	private HTable htable;
-	private byte[][] trrInputColumns;
-	private long timestamp;
-	private int rowcount;
-	private boolean logScannerActivity = false;
-	private int logPerRowCount = 100;
-	private boolean endRowInclusive = true;
-	private int versions = 1;
-	private boolean useSalt = false;
-
-	private HBaseMultiInputSplit multiSplit = null;
-	private List<HBaseTableSplit> allSplits = null;
-
-	private HBaseRecordReader() {
-	}
-
-	public HBaseRecordReader(HBaseMultiInputSplit mSplit) throws IOException {
-		multiSplit = mSplit;
-
-		LOG.info("Creatin Multi Split for region location : "
-				+ multiSplit.getRegionLocation());
-
-		allSplits = multiSplit.getSplits();
-	}
-
-	public boolean setNextSplit() throws IOException {
-		if (allSplits.size() > 0) {
-			setSplitValue(allSplits.remove(0));
-			return true;
-		} else {
-			return false;
-		}
-	}
-
-	private void setSplitValue(HBaseTableSplit tSplit) throws IOException {
-		switch (tSplit.getSourceMode()) {
-			case SCAN_ALL:
-			case SCAN_RANGE: {
-				LOG.debug(String.format(
-						"For split [%s] we have start key (%s) and stop key (%s)",
-						tSplit, tSplit.getStartRow(), tSplit.getEndRow()));
-
-				setStartRow(tSplit.getStartRow());
-				setEndRow(tSplit.getEndRow());
-				setEndRowInclusive(tSplit.getEndRowInclusive());
-			}
-
-			break;
-
-			case GET_LIST: {
-				LOG.debug(String.format("For split [%s] we have key list (%s)",
-						tSplit, tSplit.getKeyList()));
-
-				setKeyList(tSplit.getKeyList());
-				setVersions(tSplit.getVersions());
-			}
-
-			break;
-
-			case EMPTY:
-				LOG.info("EMPTY split. Doing nothing.");
-			break;
-
-			default:
-				throw new IOException("Unknown source mode : "
-						+ tSplit.getSourceMode());
-		}
-
-		setSourceMode(tSplit.getSourceMode());
-
-		init();
-	}
-
-	/**
-	 * Restart from survivable exceptions by creating a new scanner.
-	 * 
-	 * @param firstRow
-	 * @throws IOException
-	 */
-	private void restartRangeScan(byte[] firstRow) throws IOException {
-		Scan currentScan;
-		if ((endRow != null) && (endRow.length > 0)) {
-			if (trrRowFilter != null) {
-				Scan scan = new Scan(firstRow, (endRowInclusive ? Bytes.add(endRow,
-						new byte[] { 0 }) : endRow));
-
-				TableInputFormat.addColumns(scan, trrInputColumns);
-				scan.setFilter(trrRowFilter);
-				scan.setCacheBlocks(false);
-				this.scanner = this.htable.getScanner(scan);
-				currentScan = scan;
-			} else {
-				LOG.debug("TIFB.restart, firstRow: " + Bytes.toString(firstRow)
-						+ ", endRow: " + Bytes.toString(endRow));
-				Scan scan = new Scan(firstRow, (endRowInclusive ? Bytes.add(endRow,
-						new byte[] { 0 }) : endRow));
-				TableInputFormat.addColumns(scan, trrInputColumns);
-				this.scanner = this.htable.getScanner(scan);
-				currentScan = scan;
-			}
-		} else {
-			LOG.debug("TIFB.restart, firstRow: " + Bytes.toStringBinary(firstRow)
-					+ ", no endRow");
-
-			Scan scan = new Scan(firstRow);
-			TableInputFormat.addColumns(scan, trrInputColumns);
-			scan.setFilter(trrRowFilter);
-			this.scanner = this.htable.getScanner(scan);
-			currentScan = scan;
-		}
-		if (logScannerActivity) {
-			LOG.debug("Current scan=" + currentScan.toString());
-			timestamp = System.currentTimeMillis();
-			rowcount = 0;
-		}
-	}
-
-	public TreeSet<String> getKeyList() {
-		return keyList;
-	}
-
-	private void setKeyList(TreeSet<String> keyList) {
-		this.keyList = keyList;
-	}
-
-	private void setVersions(int versions) {
-		this.versions = versions;
-	}
-
-	public void setUseSalt(boolean useSalt) {
-		this.useSalt = useSalt;
-	}
-
-	public SourceMode getSourceMode() {
-		return sourceMode;
-	}
-
-	private void setSourceMode(SourceMode sourceMode) {
-		this.sourceMode = sourceMode;
-	}
-
-	public byte[] getEndRow() {
-		return endRow;
-	}
-
-	private void setEndRowInclusive(boolean isInclusive) {
-		endRowInclusive = isInclusive;
-	}
-
-	public boolean getEndRowInclusive() {
-		return endRowInclusive;
-	}
-
-	private byte[] nextKey = null;
-	private Vector<List<KeyValue>> resultVector = null;
-	Map<Long, List<KeyValue>> keyValueMap = null;
-
-	/**
-	 * Build the scanner. Not done in constructor to allow for extension.
-	 * 
-	 * @throws IOException
-	 */
-	private void init() throws IOException {
-		switch (sourceMode) {
-			case SCAN_ALL:
-			case SCAN_RANGE:
-				restartRangeScan(startRow);
-			break;
-
-			case GET_LIST:
-				nextKey = Bytes.toBytes(keyList.pollFirst());
-			break;
-
-			case EMPTY:
-				LOG.info("EMPTY mode. Do nothing");
-			break;
-
-			default:
-				throw new IOException(" Unknown source mode : " + sourceMode);
-		}
-	}
-
-	byte[] getStartRow() {
-		return this.startRow;
-	}
-
-	/**
-	 * @param htable
-	 *           the {@link HTable} to scan.
-	 */
-	public void setHTable(HTable htable) {
-		Configuration conf = htable.getConfiguration();
-		logScannerActivity = conf.getBoolean(
-				ScannerCallable.LOG_SCANNER_ACTIVITY, false);
-		logPerRowCount = conf.getInt(LOG_PER_ROW_COUNT, 100);
-		this.htable = htable;
-	}
-
-	/**
-	 * @param inputColumns
-	 *           the columns to be placed in {@link Result}.
-	 */
-	public void setInputColumns(final byte[][] inputColumns) {
-		this.trrInputColumns = inputColumns;
-	}
-
-	/**
-	 * @param startRow
-	 *           the first row in the split
-	 */
-	private void setStartRow(final byte[] startRow) {
-		this.startRow = startRow;
-	}
-
-	/**
-	 * 
-	 * @param endRow
-	 *           the last row in the split
-	 */
-	private void setEndRow(final byte[] endRow) {
-		this.endRow = endRow;
-	}
-
-	/**
-	 * @param rowFilter
-	 *           the {@link Filter} to be used.
-	 */
-	public void setRowFilter(Filter rowFilter) {
-		this.trrRowFilter = rowFilter;
-	}
-
-	@Override
-	public void close() {
-		if (this.scanner != null)
-			this.scanner.close();
-	}
-
-	/**
-	 * @return ImmutableBytesWritable
-	 * 
-	 * @see org.apache.hadoop.mapred.RecordReader#createKey()
-	 */
-	@Override
-	public ImmutableBytesWritable createKey() {
-		return new ImmutableBytesWritable();
-	}
-
-	/**
-	 * @return RowResult
-	 * 
-	 * @see org.apache.hadoop.mapred.RecordReader#createValue()
-	 */
-	@Override
-	public Result createValue() {
-		return new Result();
-	}
-
-	@Override
-	public long getPos() {
-		// This should be the ordinal tuple in the range;
-		// not clear how to calculate...
-		return 0;
-	}
-
-	@Override
-	public float getProgress() {
-		// Depends on the total number of tuples and getPos
-		return 0;
-	}
-
-	/**
-	 * @param key
-	 *           HStoreKey as input key.
-	 * @param value
-	 *           MapWritable as input value
-	 * @return true if there was more data
-	 * @throws IOException
-	 */
-	@Override
-	public boolean next(ImmutableBytesWritable key, Result value)
-			throws IOException {
-
-		switch (sourceMode) {
-			case SCAN_ALL:
-			case SCAN_RANGE: {
-
-				Result result;
-				try {
-					try {
-						result = this.scanner.next();
-						if (logScannerActivity) {
-							rowcount++;
-							if (rowcount >= logPerRowCount) {
-								long now = System.currentTimeMillis();
-								LOG.debug("Mapper took " + (now - timestamp)
-										+ "ms to process " + rowcount + " rows");
-								timestamp = now;
-								rowcount = 0;
-							}
-						}
-					} catch (IOException e) {
-						// try to handle all IOExceptions by restarting
-						// the scanner, if the second call fails, it will be rethrown
-						LOG.debug("recovered from "
-								+ StringUtils.stringifyException(e));
-						if (lastSuccessfulRow == null) {
-							LOG.warn("We are restarting the first next() invocation,"
-									+ " if your mapper has restarted a few other times like this"
-									+ " then you should consider killing this job and investigate"
-									+ " why it's taking so long.");
-						}
-						if (lastSuccessfulRow == null) {
-							restartRangeScan(startRow);
-						} else {
-							restartRangeScan(lastSuccessfulRow);
-							this.scanner.next(); // skip presumed already mapped row
-						}
-						result = this.scanner.next();
-					}
-
-					if (result != null && result.size() > 0) {
-						if (useSalt) {
-							key.set(HBaseSalter.delSaltPrefix(result.getRow()));
-						} else {
-							key.set(result.getRow());
-						}
-
-						lastSuccessfulRow = key.get();
-						Writables.copyWritable(result, value);
-						return true;
-					}
-					return setNextSplit();
-				} catch (IOException ioe) {
-					if (logScannerActivity) {
-						long now = System.currentTimeMillis();
-						LOG.debug("Mapper took " + (now - timestamp)
-								+ "ms to process " + rowcount + " rows");
-						LOG.debug(ioe);
-						String lastRow = lastSuccessfulRow == null ? "null" : Bytes
-								.toStringBinary(lastSuccessfulRow);
-						LOG.debug("lastSuccessfulRow=" + lastRow);
-					}
-					throw ioe;
-				}
-			}
-
-			case GET_LIST: {
-				LOG.debug(String.format("INTO next with GET LIST and Key (%s)",
-						Bytes.toString(nextKey)));
-
-				if (versions == 1) {
-					if (nextKey != null) {
-						LOG.debug(String.format("Processing Key (%s)",
-								Bytes.toString(nextKey)));
-
-						Get theGet = new Get(nextKey);
-						theGet.setMaxVersions(versions);
-
-						Result result = this.htable.get(theGet);
-
-						if (result != null && (!result.isEmpty())) {
-							LOG.debug(String.format(
-									"Key (%s), Version (%s), Got Result (%s)",
-									Bytes.toString(nextKey), versions, result));
-
-							if (keyList != null || !keyList.isEmpty()) {
-								String newKey = keyList.pollFirst();
-								LOG.debug("New Key => " + newKey);
-								nextKey = (newKey == null || newKey.length() == 0) ? null
-										: Bytes.toBytes(newKey);
-							} else {
-								nextKey = null;
-							}
-
-							LOG.debug(String.format("=> Picked a new Key (%s)",
-									Bytes.toString(nextKey)));
-
-							// Write the result
-							if (useSalt) {
-								key.set(HBaseSalter.delSaltPrefix(result.getRow()));
-							} else {
-								key.set(result.getRow());
-							}
-							lastSuccessfulRow = key.get();
-							Writables.copyWritable(result, value);
-
-							return true;
-						} else {
-							LOG.debug(" Key (" + Bytes.toString(nextKey)
-									+ ") return an EMPTY result. Get (" + theGet.getId()
-									+ ")"); // alg0
-
-							String newKey;
-							while ((newKey = keyList.pollFirst()) != null) {
-								LOG.debug("WHILE NEXT Key => " + newKey);
-
-								nextKey = (newKey == null || newKey.length() == 0) ? null
-										: Bytes.toBytes(newKey);
-
-								if (nextKey == null) {
-									LOG.error("BOMB! BOMB! BOMB!");
-									continue;
-								}
-
-								if (!this.htable.exists(new Get(nextKey))) {
-									LOG.debug(String.format(
-											"Key (%s) Does not exist in Table (%s)",
-											Bytes.toString(nextKey),
-											Bytes.toString(this.htable.getTableName())));
-									continue;
-								} else {
-									break;
-								}
-							}
-
-							nextKey = (newKey == null || newKey.length() == 0) ? null
-									: Bytes.toBytes(newKey);
-
-							LOG.debug("Final New Key => " + Bytes.toString(nextKey));
-
-							return next(key, value);
-						}
-					} else {
-						// Nothig left. return false
-						return setNextSplit();
-					}
-				} else {
-					if (resultVector != null && resultVector.size() != 0) {
-						LOG.debug(String.format("+ Version (%s), Result VECTOR <%s>",
-								versions, resultVector));
-
-						List<KeyValue> resultKeyValue = resultVector
-								.remove(resultVector.size() - 1);
-						Result result = new Result(resultKeyValue);
-
-						LOG.debug(String.format("+ Version (%s), Got Result <%s>",
-								versions, result));
-
-						if (useSalt) {
-							key.set(HBaseSalter.delSaltPrefix(result.getRow()));
-						} else {
-							key.set(result.getRow());
-						}
-						lastSuccessfulRow = key.get();
-						Writables.copyWritable(result, value);
-
-						return true;
-					} else {
-						if (nextKey != null) {
-							LOG.debug(String.format("+ Processing Key (%s)",
-									Bytes.toString(nextKey)));
-
-							Get theGet = new Get(nextKey);
-							theGet.setMaxVersions(versions);
-
-							Result resultAll = this.htable.get(theGet);
-
-							if (resultAll != null && (!resultAll.isEmpty())) {
-								List<KeyValue> keyValeList = resultAll.list();
-
-								keyValueMap = new HashMap<Long, List<KeyValue>>();
-
-								LOG.debug(String.format(
-										"+ Key (%s) Versions (%s) Val;ute map <%s>",
-										Bytes.toString(nextKey), versions, keyValueMap));
-
-								for (KeyValue keyValue : keyValeList) {
-									long version = keyValue.getTimestamp();
-
-									if (keyValueMap.containsKey(new Long(version))) {
-										List<KeyValue> keyValueTempList = keyValueMap
-												.get(new Long(version));
-										if (keyValueTempList == null) {
-											keyValueTempList = new ArrayList<KeyValue>();
-										}
-										keyValueTempList.add(keyValue);
-									} else {
-										List<KeyValue> keyValueTempList = new ArrayList<KeyValue>();
-										keyValueMap.put(new Long(version),
-												keyValueTempList);
-										keyValueTempList.add(keyValue);
-									}
-								}
-
-								resultVector = new Vector<List<KeyValue>>();
-								resultVector.addAll(keyValueMap.values());
-
-								List<KeyValue> resultKeyValue = resultVector
-										.remove(resultVector.size() - 1);
-
-								Result result = new Result(resultKeyValue);
-
-								LOG.debug(String.format(
-										"+ Version (%s), Got Result (%s)", versions,
-										result));
-
-								String newKey = keyList.pollFirst(); // Bytes.toString(resultKeyValue.getKey());//
-
-								System.out.println("+ New Key => " + newKey);
-								nextKey = (newKey == null || newKey.length() == 0) ? null
-										: Bytes.toBytes(newKey);
-
-								if (useSalt) {
-									key.set(HBaseSalter.delSaltPrefix(result.getRow()));
-								} else {
-									key.set(result.getRow());
-								}
-								lastSuccessfulRow = key.get();
-								Writables.copyWritable(result, value);
-								return true;
-							} else {
-								LOG.debug(String.format(
-										"+ Key (%s) return an EMPTY result. Get (%s)",
-										Bytes.toString(nextKey), theGet.getId())); // alg0
-
-								String newKey;
-
-								while ((newKey = keyList.pollFirst()) != null) {
-									LOG.debug("+ WHILE NEXT Key => " + newKey);
-
-									nextKey = (newKey == null || newKey.length() == 0) ? null
-											: Bytes.toBytes(newKey);
-
-									if (nextKey == null) {
-										LOG.error("+ BOMB! BOMB! BOMB!");
-										continue;
-									}
-
-									if (!this.htable.exists(new Get(nextKey))) {
-										LOG.debug(String.format(
-												"+ Key (%s) Does not exist in Table (%s)",
-												Bytes.toString(nextKey),
-												Bytes.toString(this.htable.getTableName())));
-										continue;
-									} else {
-										break;
-									}
-								}
-
-								nextKey = (newKey == null || newKey.length() == 0) ? null
-										: Bytes.toBytes(newKey);
-
-								LOG.debug("+ Final New Key => "
-										+ Bytes.toString(nextKey));
-
-								return next(key, value);
-							}
-
-						} else {
-							return setNextSplit();
-						}
-					}
-				}
-			}
-
-			case EMPTY: {
-				LOG.info("GOT an empty Split");
-				return setNextSplit();
-			}
-
-			default:
-				throw new IOException("Unknown source mode : " + sourceMode);
-		}
-	}
-}
diff --git a/src/main/java/parallelai/spyglass/hbase/HBaseRecordReaderBase.java b/src/main/java/parallelai/spyglass/hbase/HBaseRecordReaderBase.java
new file mode 100644
index 0000000..37858ad
--- /dev/null
+++ b/src/main/java/parallelai/spyglass/hbase/HBaseRecordReaderBase.java
@@ -0,0 +1,140 @@
+package parallelai.spyglass.hbase;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.hbase.client.HTable;
+import org.apache.hadoop.hbase.client.Result;
+import org.apache.hadoop.hbase.client.ScannerCallable;
+import org.apache.hadoop.hbase.filter.Filter;
+import org.apache.hadoop.hbase.io.ImmutableBytesWritable;
+import org.apache.hadoop.hbase.util.Bytes;
+import org.apache.hadoop.mapred.RecordReader;
+
+import java.util.TreeSet;
+
+import static org.apache.hadoop.hbase.mapreduce.TableRecordReaderImpl.LOG_PER_ROW_COUNT;
+
+/**
+ * Created with IntelliJ IDEA.
+ * User: chand_000
+ * Date: 29/08/13
+ * Time: 15:42
+ * To change this template use File | Settings | File Templates.
+ */
+public abstract class HBaseRecordReaderBase implements
+        RecordReader<ImmutableBytesWritable, Result> {
+
+    protected TreeSet<String> keyList;
+    protected HBaseConstants.SourceMode sourceMode;
+    protected boolean endRowInclusive = true;
+    protected int versions = 1;
+    protected boolean useSalt = false;
+
+    protected byte[] startRow;
+    protected byte[] endRow;
+
+    protected HTable htable;
+    protected byte[][] trrInputColumns;
+
+    protected Filter trrRowFilter;
+
+    protected boolean logScannerActivity = false;
+    protected int logPerRowCount = 100;
+
+    @Override
+    public String toString() {
+        StringBuffer sbuf = new StringBuffer();
+
+        sbuf.append("".format("HBaseRecordReaderRegional : startRow [%s] endRow [%s] endRowInc [%s] ",
+                Bytes.toString(startRow), Bytes.toString(endRow), endRowInclusive));
+        sbuf.append("".format(" sourceMode [%s] salt [%s] versions [%s] ",
+                sourceMode, useSalt, versions));
+
+        return sbuf.toString();
+    }
+
+    byte[] getStartRow() {
+        return this.startRow;
+    }
+
+    /**
+     * @param htable
+     *          the {@link org.apache.hadoop.hbase.client.HTable} to scan.
+     */
+    public void setHTable(HTable htable) {
+        Configuration conf = htable.getConfiguration();
+        logScannerActivity = conf.getBoolean(ScannerCallable.LOG_SCANNER_ACTIVITY,
+                false);
+        logPerRowCount = conf.getInt(LOG_PER_ROW_COUNT, 100);
+        this.htable = htable;
+    }
+
+    /**
+     * @param inputColumns
+     *          the columns to be placed in {@link Result}.
+     */
+    public void setInputColumns(final byte[][] inputColumns) {
+        this.trrInputColumns = inputColumns;
+    }
+
+    /**
+     * @param startRow
+     *          the first row in the split
+     */
+    public void setStartRow(final byte[] startRow) {
+        this.startRow = startRow;
+    }
+
+    /**
+     *
+     * @param endRow
+     *          the last row in the split
+     */
+    public void setEndRow(final byte[] endRow) {
+        this.endRow = endRow;
+    }
+
+    /**
+     * @param rowFilter
+     *          the {@link org.apache.hadoop.hbase.filter.Filter} to be used.
+     */
+    public void setRowFilter(Filter rowFilter) {
+        this.trrRowFilter = rowFilter;
+    }
+
+    public TreeSet<String> getKeyList() {
+        return keyList;
+    }
+
+    public void setKeyList(TreeSet<String> keyList) {
+        this.keyList = keyList;
+    }
+
+    public void setVersions(int versions) {
+        this.versions = versions;
+    }
+
+    public void setUseSalt(boolean useSalt) {
+        this.useSalt = useSalt;
+    }
+
+    public HBaseConstants.SourceMode getSourceMode() {
+        return sourceMode;
+    }
+
+    public void setSourceMode(HBaseConstants.SourceMode sourceMode) {
+        this.sourceMode = sourceMode;
+    }
+
+    public byte[] getEndRow() {
+        return endRow;
+    }
+
+    public void setEndRowInclusive(boolean isInclusive) {
+        endRowInclusive = isInclusive;
+    }
+
+    public boolean getEndRowInclusive() {
+        return endRowInclusive;
+    }
+
+}
diff --git a/src/main/java/parallelai/spyglass/hbase/HBaseRecordReader_SINGLE.java b/src/main/java/parallelai/spyglass/hbase/HBaseRecordReaderGranular.java
index 5eafc78..6c28d9f 100644
--- a/src/main/java/parallelai/spyglass/hbase/HBaseRecordReader_SINGLE.java
+++ b/src/main/java/parallelai/spyglass/hbase/HBaseRecordReaderGranular.java
@@ -30,29 +30,29 @@ import org.apache.hadoop.util.StringUtils;
 
 import parallelai.spyglass.hbase.HBaseConstants.SourceMode;
 
-public class HBaseRecordReader_SINGLE implements
-    RecordReader<ImmutableBytesWritable, Result> {
+public class HBaseRecordReaderGranular extends HBaseRecordReaderBase {
 
-  static final Log LOG = LogFactory.getLog(HBaseRecordReader_SINGLE.class);
+  static final Log LOG = LogFactory.getLog(HBaseRecordReaderGranular.class);
 
-  private byte[] startRow;
-  private byte[] endRow;
   private byte[] lastSuccessfulRow;
-  private TreeSet<String> keyList;
-  private SourceMode sourceMode;
-  private Filter trrRowFilter;
   private ResultScanner scanner;
-  private HTable htable;
-  private byte[][] trrInputColumns;
   private long timestamp;
   private int rowcount;
-  private boolean logScannerActivity = false;
-  private int logPerRowCount = 100;
-  private boolean endRowInclusive = true;
-  private int versions = 1;
-  private boolean useSalt = false;
 
-  /**
+    @Override
+    public String toString() {
+        StringBuffer sbuf = new StringBuffer();
+
+        sbuf.append("".format("HBaseRecordReaderRegional : startRow [%s] endRow [%s] lastRow [%s] nextKey [%s] endRowInc [%s] rowCount [%s]",
+                Bytes.toString(startRow), Bytes.toString(endRow), Bytes.toString(lastSuccessfulRow), Bytes.toString(nextKey), endRowInclusive, rowcount));
+        sbuf.append("".format(" sourceMode [%s] salt [%s] versions [%s] ",
+                sourceMode, useSalt, versions));
+
+        return sbuf.toString();
+    }
+
+
+    /**
    * Restart from survivable exceptions by creating a new scanner.
    * 
    * @param firstRow
@@ -96,41 +96,6 @@ public class HBaseRecordReader_SINGLE implements
     }
   }
 
-  public TreeSet<String> getKeyList() {
-    return keyList;
-  }
-
-  public void setKeyList(TreeSet<String> keyList) {
-    this.keyList = keyList;
-  }
-
-  public void setVersions(int versions) {
-    this.versions = versions;
-  }
-  
-  public void setUseSalt(boolean useSalt) {
-    this.useSalt = useSalt;
-  }
-
-  public SourceMode getSourceMode() {
-    return sourceMode;
-  }
-
-  public void setSourceMode(SourceMode sourceMode) {
-    this.sourceMode = sourceMode;
-  }
-
-  public byte[] getEndRow() {
-    return endRow;
-  }
-
-  public void setEndRowInclusive(boolean isInclusive) {
-    endRowInclusive = isInclusive;
-  }
-
-  public boolean getEndRowInclusive() {
-    return endRowInclusive;
-  }
 
   private byte[] nextKey = null;
   private Vector<List<KeyValue>> resultVector = null;
@@ -157,55 +122,6 @@ public class HBaseRecordReader_SINGLE implements
     }
   }
 
-  byte[] getStartRow() {
-    return this.startRow;
-  }
-
-  /**
-   * @param htable
-   *          the {@link HTable} to scan.
-   */
-  public void setHTable(HTable htable) {
-    Configuration conf = htable.getConfiguration();
-    logScannerActivity = conf.getBoolean(ScannerCallable.LOG_SCANNER_ACTIVITY,
-        false);
-    logPerRowCount = conf.getInt(LOG_PER_ROW_COUNT, 100);
-    this.htable = htable;
-  }
-
-  /**
-   * @param inputColumns
-   *          the columns to be placed in {@link Result}.
-   */
-  public void setInputColumns(final byte[][] inputColumns) {
-    this.trrInputColumns = inputColumns;
-  }
-
-  /**
-   * @param startRow
-   *          the first row in the split
-   */
-  public void setStartRow(final byte[] startRow) {
-    this.startRow = startRow;
-  }
-
-  /**
-   * 
-   * @param endRow
-   *          the last row in the split
-   */
-  public void setEndRow(final byte[] endRow) {
-    this.endRow = endRow;
-  }
-
-  /**
-   * @param rowFilter
-   *          the {@link Filter} to be used.
-   */
-  public void setRowFilter(Filter rowFilter) {
-    this.trrRowFilter = rowFilter;
-  }
-
   @Override
   public void close() {
     if (this.scanner != null)
@@ -450,7 +366,6 @@ public class HBaseRecordReader_SINGLE implements
 
               String newKey = keyList.pollFirst(); // Bytes.toString(resultKeyValue.getKey());//
 
-              System.out.println("+ New Key => " + newKey);
               nextKey = (newKey == null || newKey.length() == 0) ? null : Bytes
                   .toBytes(newKey);
 
diff --git a/src/main/java/parallelai/spyglass/hbase/HBaseRecordReaderRegional.java b/src/main/java/parallelai/spyglass/hbase/HBaseRecordReaderRegional.java
new file mode 100644
index 0000000..e2b1ec8
--- /dev/null
+++ b/src/main/java/parallelai/spyglass/hbase/HBaseRecordReaderRegional.java
@@ -0,0 +1,124 @@
+package parallelai.spyglass.hbase;
+
+import static org.apache.hadoop.hbase.mapreduce.TableRecordReaderImpl.LOG_PER_ROW_COUNT;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.TreeSet;
+import java.util.Vector;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.hbase.KeyValue;
+import org.apache.hadoop.hbase.client.Get;
+import org.apache.hadoop.hbase.client.HTable;
+import org.apache.hadoop.hbase.client.Result;
+import org.apache.hadoop.hbase.client.ResultScanner;
+import org.apache.hadoop.hbase.client.Scan;
+import org.apache.hadoop.hbase.client.ScannerCallable;
+import org.apache.hadoop.hbase.filter.Filter;
+import org.apache.hadoop.hbase.io.ImmutableBytesWritable;
+import org.apache.hadoop.hbase.mapreduce.TableInputFormat;
+import org.apache.hadoop.hbase.util.Bytes;
+import org.apache.hadoop.hbase.util.Writables;
+import org.apache.hadoop.mapred.RecordReader;
+import org.apache.hadoop.util.StringUtils;
+
+import parallelai.spyglass.hbase.HBaseConstants.SourceMode;
+
+public class HBaseRecordReaderRegional extends HBaseRecordReaderBase {
+
+	static final Log LOG = LogFactory.getLog(HBaseRecordReaderRegional.class);
+
+
+    private byte[] nextKey = null;
+    private Vector<List<KeyValue>> resultVector = null;
+    Map<Long, List<KeyValue>> keyValueMap = null;
+
+    private HBaseTableSplitRegional multiSplit = null;
+	private HBaseTableSplitGranular currentSplit = null;
+
+    private HBaseRecordReaderGranular currentRecordReader = null;
+
+	public void init(HBaseTableSplitRegional mSplit) throws IOException {
+		multiSplit = mSplit;
+
+		LOG.debug("Creating Multi Split for region location : "
+                + multiSplit.getRegionLocation() + " -> " + multiSplit);
+
+        setNextSplit();
+	}
+
+	public boolean setNextSplit() throws IOException {
+        currentSplit = multiSplit.getNextSplit();
+
+        LOG.debug("IN: setNextSplit : " + currentSplit );
+
+		if( currentSplit != null ) {
+			setSplitValue(currentSplit);
+			return true;
+		} else {
+			return false;
+		}
+	}
+
+    private void setRecordReaderParms(HBaseRecordReaderGranular trr, HBaseTableSplitGranular tSplit) throws IOException {
+        HBaseConfigUtils.setRecordReaderParms(trr, tSplit);
+
+        trr.setHTable(htable);
+        trr.setInputColumns(trrInputColumns);
+        trr.setRowFilter(trrRowFilter);
+
+        trr.init();
+    }
+
+	private void setSplitValue(HBaseTableSplitGranular tSplit) throws IOException {
+        LOG.debug("IN: setSplitValue : " + tSplit );
+
+        if( currentRecordReader != null ) currentRecordReader.close();
+
+        currentRecordReader = new HBaseRecordReaderGranular();
+        setRecordReaderParms(currentRecordReader, currentSplit);
+	}
+
+    @Override
+    public boolean next(ImmutableBytesWritable ibw, Result result) throws IOException {
+        boolean nextFlag = currentRecordReader.next(ibw, result);
+
+        while(nextFlag == false && multiSplit.hasMoreSplits() ) {
+            setNextSplit();
+            nextFlag = currentRecordReader.next(ibw, result);
+        }
+
+        return nextFlag;
+    }
+
+    @Override
+    public ImmutableBytesWritable createKey() {
+        return currentRecordReader.createKey();
+    }
+
+    @Override
+    public Result createValue() {
+        return currentRecordReader.createValue();
+    }
+
+    @Override
+    public long getPos() throws IOException {
+        return currentRecordReader.getPos();
+    }
+
+    @Override
+    public void close() throws IOException {
+        currentRecordReader.close();
+    }
+
+    @Override
+    public float getProgress() throws IOException {
+        return currentRecordReader.getProgress();
+    }
+}
diff --git a/src/main/java/parallelai/spyglass/hbase/HBaseSalter.java b/src/main/java/parallelai/spyglass/hbase/HBaseSalter.java
index 6766458..5bdf8cd 100644
--- a/src/main/java/parallelai/spyglass/hbase/HBaseSalter.java
+++ b/src/main/java/parallelai/spyglass/hbase/HBaseSalter.java
@@ -68,7 +68,7 @@ public class HBaseSalter {
 		  byte[] originalStartKey, byte[] originalStopKey, 
 		  byte[] regionStartKey, byte[] regionStopKey, 
 		  String prefixList) throws IOException {
-	LOG.info("".format("OSRT: (%s) OSTP: (%s) RSRT: (%s) RSTP: (%s) PRFX: (%s)",
+	LOG.debug("".format("OSRT: (%s) OSTP: (%s) RSRT: (%s) RSTP: (%s) PRFX: (%s)",
 			Bytes.toString(originalStartKey),
 			Bytes.toString(originalStopKey),
 			Bytes.toString(regionStartKey),
@@ -160,7 +160,7 @@ public class HBaseSalter {
   }
   
   private static byte[][] getAllKeysWithStartStop(byte[] originalKey, String prefixList, byte startPrefix, byte stopPrefix) {
-      LOG.info("".format("getAllKeysWithStartStop: OKEY (%s) PLIST (%s) PSRT (%s) PSTP (%s)",
+      LOG.debug("".format("getAllKeysWithStartStop: OKEY (%s) PLIST (%s) PSRT (%s) PSTP (%s)",
               Bytes.toString(originalKey), prefixList, startPrefix, stopPrefix));
 
       char[] prefixArray = prefixList.toCharArray();
@@ -172,13 +172,13 @@ public class HBaseSalter {
 	  
 	  SortedSet<Byte> subSet = prefixSet.subSet(startPrefix, true, stopPrefix, true);
 
-      LOG.info("".format("Prefix subset (%s)", subSet));
+      LOG.debug("".format("Prefix subset (%s)", subSet));
 	  
 	  return getAllKeys(originalKey, subSet.toArray(new Byte[]{}));
   }
   
   public static byte[][] getAllKeys(byte[] originalKey, Byte [] prefixArray) {
-    LOG.info("".format("getAllKeys: OKEY (%s) PARRAY (%s)",
+    LOG.debug("".format("getAllKeys: OKEY (%s) PARRAY (%s)",
               Bytes.toString(originalKey), prefixArray ));
 
 	byte[][] keys = new byte[prefixArray.length][];
@@ -187,12 +187,6 @@ public class HBaseSalter {
       keys[i] = Bytes.add(new byte[] {prefixArray[i].byteValue()}, Bytes.add( Bytes.toBytes("_"), originalKey));
     }
 
-    for(int i = 0; i < keys.length; i ++) {
-        for(int j = 0; j < keys[i].length; j++) {
-            LOG.info("" + i + " : " + j + " : " + keys[i][j]);
-        }
-    }
-
     return keys;
   }
   
diff --git a/src/main/java/parallelai/spyglass/hbase/HBaseScheme.java b/src/main/java/parallelai/spyglass/hbase/HBaseScheme.java
index aa446c1..6f04f01 100644
--- a/src/main/java/parallelai/spyglass/hbase/HBaseScheme.java
+++ b/src/main/java/parallelai/spyglass/hbase/HBaseScheme.java
@@ -12,6 +12,7 @@
 
 package parallelai.spyglass.hbase;
 
+import parallelai.spyglass.hbase.HBaseConstants.SplitType;
 import cascading.flow.FlowProcess;
 import cascading.scheme.Scheme;
 import cascading.scheme.SinkCall;
@@ -65,6 +66,8 @@ public class HBaseScheme
 //  private transient byte[][] fields;
   
   private boolean useSalt = false;
+
+  private SplitType splitType = SplitType.GRANULAR;
  
 
   /**
@@ -279,11 +282,31 @@ public class HBaseScheme
   @Override
   public void sourceConfInit(FlowProcess<JobConf> process,
       Tap<JobConf, RecordReader, OutputCollector> tap, JobConf conf) {
-    conf.setInputFormat(HBaseInputFormat.class);
 
-    String columns = getColumns();
-    LOG.debug("sourcing from columns: {}", columns);
-    conf.set(HBaseInputFormat.COLUMN_LIST, columns);
+      switch(splitType) {
+          case GRANULAR:
+          {
+              conf.setInputFormat(HBaseInputFormatGranular.class);
+
+              String columns = getColumns();
+              LOG.debug("sourcing from columns: {}", columns);
+              conf.set(HBaseInputFormatGranular.COLUMN_LIST, columns);
+          }
+          break;
+
+          case REGIONAL:
+          {
+              conf.setInputFormat(HBaseInputFormatRegional.class);
+
+              String columns = getColumns();
+              LOG.debug("sourcing from columns: {}", columns);
+              conf.set(HBaseInputFormatRegional.COLUMN_LIST, columns);
+          }
+          break;
+
+          default:
+              LOG.error("Unknown Split Type : " + splitType.toString());
+      }
   }
 
   private String getColumns() {
@@ -345,4 +368,8 @@ public class HBaseScheme
     result = 31 * result + (valueFields != null ? Arrays.hashCode(valueFields) : 0);
     return result;
   }
+
+  public void setInputSplitTye(SplitType sType) {
+      this.splitType = sType;
+  }
 }
diff --git a/src/main/java/parallelai/spyglass/hbase/HBaseTableSplit.java b/src/main/java/parallelai/spyglass/hbase/HBaseTableSplit.java
deleted file mode 100644
index 87b8f58..0000000
--- a/src/main/java/parallelai/spyglass/hbase/HBaseTableSplit.java
+++ /dev/null
@@ -1,219 +0,0 @@
-package parallelai.spyglass.hbase;
-
-import java.io.DataInput;
-import java.io.DataOutput;
-import java.io.IOException;
-import java.io.Serializable;
-import java.util.TreeSet;
-
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-import org.apache.hadoop.hbase.HConstants;
-import org.apache.hadoop.hbase.util.Bytes;
-import org.apache.hadoop.mapred.InputSplit;
-
-import parallelai.spyglass.hbase.HBaseConstants.SourceMode;
-
-public class HBaseTableSplit implements InputSplit,
-		Comparable<HBaseTableSplit>, Serializable {
-
-	private final Log LOG = LogFactory.getLog(HBaseTableSplit.class);
-
-	private byte[] m_tableName = null;
-	private byte[] m_startRow = null;
-	private byte[] m_endRow = null;
-	private String m_regionLocation = null;
-	private TreeSet<String> m_keyList = null;
-	private SourceMode m_sourceMode = SourceMode.EMPTY;
-	private boolean m_endRowInclusive = true;
-	private int m_versions = 1;
-	private boolean m_useSalt = false;
-
-	/** default constructor */
-	public HBaseTableSplit() {
-		this(HConstants.EMPTY_BYTE_ARRAY, HConstants.EMPTY_BYTE_ARRAY,
-				HConstants.EMPTY_BYTE_ARRAY, "", SourceMode.EMPTY, false);
-	}
-
-	/**
-	 * Constructor
-	 * 
-	 * @param tableName
-	 * @param startRow
-	 * @param endRow
-	 * @param location
-	 */
-	public HBaseTableSplit(final byte[] tableName, final byte[] startRow,
-			final byte[] endRow, final String location,
-			final SourceMode sourceMode, final boolean useSalt) {
-		this.m_tableName = tableName;
-		this.m_startRow = startRow;
-		this.m_endRow = endRow;
-		this.m_regionLocation = location;
-		this.m_sourceMode = sourceMode;
-		this.m_useSalt = useSalt;
-	}
-
-	public HBaseTableSplit(final byte[] tableName,
-			final TreeSet<String> keyList, int versions, final String location,
-			final SourceMode sourceMode, final boolean useSalt) {
-		this.m_tableName = tableName;
-		this.m_keyList = keyList;
-		this.m_versions = versions;
-		this.m_sourceMode = sourceMode;
-		this.m_regionLocation = location;
-		this.m_useSalt = useSalt;
-	}
-
-	/** @return table name */
-	public byte[] getTableName() {
-		return this.m_tableName;
-	}
-
-	/** @return starting row key */
-	public byte[] getStartRow() {
-		return this.m_startRow;
-	}
-
-	/** @return end row key */
-	public byte[] getEndRow() {
-		return this.m_endRow;
-	}
-
-	public boolean getEndRowInclusive() {
-		return m_endRowInclusive;
-	}
-
-	public void setEndRowInclusive(boolean isInclusive) {
-		m_endRowInclusive = isInclusive;
-	}
-
-	/** @return list of keys to get */
-	public TreeSet<String> getKeyList() {
-		return m_keyList;
-	}
-
-	public int getVersions() {
-		return m_versions;
-	}
-
-	/** @return get the source mode */
-	public SourceMode getSourceMode() {
-		return m_sourceMode;
-	}
-
-	public boolean getUseSalt() {
-		return m_useSalt;
-	}
-
-	/** @return the region's hostname */
-	public String getRegionLocation() {
-		LOG.debug("REGION GETTER : " + m_regionLocation);
-
-		return this.m_regionLocation;
-	}
-
-	public String[] getLocations() {
-		LOG.debug("REGION ARRAY : " + m_regionLocation);
-
-		return new String[] { this.m_regionLocation };
-	}
-
-	@Override
-	public long getLength() {
-		// Not clear how to obtain this... seems to be used only for sorting
-		// splits
-		return 0;
-	}
-
-	@Override
-	public void readFields(DataInput in) throws IOException {
-		LOG.debug("READ ME : " + in.toString());
-
-		this.m_tableName = Bytes.readByteArray(in);
-		this.m_regionLocation = Bytes.toString(Bytes.readByteArray(in));
-		this.m_sourceMode = SourceMode.valueOf(Bytes.toString(Bytes
-				.readByteArray(in)));
-		this.m_useSalt = Bytes.toBoolean(Bytes.readByteArray(in));
-
-		switch (this.m_sourceMode) {
-			case SCAN_RANGE:
-				this.m_startRow = Bytes.readByteArray(in);
-				this.m_endRow = Bytes.readByteArray(in);
-				this.m_endRowInclusive = Bytes.toBoolean(Bytes.readByteArray(in));
-			break;
-
-			case GET_LIST:
-				this.m_versions = Bytes.toInt(Bytes.readByteArray(in));
-				this.m_keyList = new TreeSet<String>();
-
-				int m = Bytes.toInt(Bytes.readByteArray(in));
-
-				for (int i = 0; i < m; i++) {
-					this.m_keyList.add(Bytes.toString(Bytes.readByteArray(in)));
-				}
-			break;
-		}
-
-		LOG.debug("READ and CREATED : " + this);
-	}
-
-	@Override
-	public void write(DataOutput out) throws IOException {
-		LOG.debug("WRITE : " + this);
-
-		Bytes.writeByteArray(out, this.m_tableName);
-		Bytes.writeByteArray(out, Bytes.toBytes(this.m_regionLocation));
-		Bytes.writeByteArray(out, Bytes.toBytes(this.m_sourceMode.name()));
-		Bytes.writeByteArray(out, Bytes.toBytes(this.m_useSalt));
-
-		switch (this.m_sourceMode) {
-			case SCAN_RANGE:
-				Bytes.writeByteArray(out, this.m_startRow);
-				Bytes.writeByteArray(out, this.m_endRow);
-				Bytes.writeByteArray(out, Bytes.toBytes(this.m_endRowInclusive));
-			break;
-
-			case GET_LIST:
-				Bytes.writeByteArray(out, Bytes.toBytes(m_versions));
-				Bytes.writeByteArray(out, Bytes.toBytes(this.m_keyList.size()));
-
-				for (String k : this.m_keyList) {
-					Bytes.writeByteArray(out, Bytes.toBytes(k));
-				}
-			break;
-		}
-
-		LOG.debug("WROTE : " + out.toString());
-	}
-
-	@Override
-	public String toString() {
-		return String
-				.format(
-						"Table Name (%s) Region (%s) Source Mode (%s) Start Key (%s) Stop Key (%s) Key List Size (%s) Versions (%s) Use Salt (%s)",
-						Bytes.toString(m_tableName), m_regionLocation, m_sourceMode,
-						Bytes.toString(m_startRow), Bytes.toString(m_endRow),
-						(m_keyList != null) ? m_keyList.size() : "EMPTY", m_versions,
-						m_useSalt);
-	}
-
-	@Override
-	public int compareTo(HBaseTableSplit o) {
-		switch (m_sourceMode) {
-			case SCAN_ALL:
-			case SCAN_RANGE:
-				return Bytes.compareTo(getStartRow(), o.getStartRow());
-
-			case GET_LIST:
-				return m_keyList.equals(o.getKeyList()) ? 0 : -1;
-
-			case EMPTY:
-				return 0;
-
-			default:
-				return -1;
-		}
-
-	}
-}
\ No newline at end of file
diff --git a/src/main/java/parallelai/spyglass/hbase/HBaseTableSplitBase.java b/src/main/java/parallelai/spyglass/hbase/HBaseTableSplitBase.java
new file mode 100644
index 0000000..2f6e7b5
--- /dev/null
+++ b/src/main/java/parallelai/spyglass/hbase/HBaseTableSplitBase.java
@@ -0,0 +1,165 @@
+package parallelai.spyglass.hbase;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.hadoop.hbase.HConstants;
+import org.apache.hadoop.hbase.util.Bytes;
+import org.apache.hadoop.mapred.InputSplit;
+
+import java.io.DataInput;
+import java.io.DataOutput;
+import java.io.IOException;
+import java.io.Serializable;
+import java.util.TreeSet;
+
+/**
+ * Created with IntelliJ IDEA.
+ * User: chand_000
+ * Date: 29/08/13
+ * Time: 16:18
+ * To change this template use File | Settings | File Templates.
+ */
+public abstract class HBaseTableSplitBase implements InputSplit,
+        Comparable<HBaseTableSplitBase>, Serializable {
+
+    private final Log LOG = LogFactory.getLog(HBaseTableSplitBase.class);
+
+
+    protected byte[] m_tableName = null;
+    protected byte[] m_startRow = null;
+    protected byte[] m_endRow = null;
+    protected String m_regionLocation = null;
+    protected TreeSet<String> m_keyList = null;
+    protected HBaseConstants.SourceMode m_sourceMode = HBaseConstants.SourceMode.EMPTY;
+    protected boolean m_endRowInclusive = true;
+    protected int m_versions = 1;
+    protected boolean m_useSalt = false;
+
+
+    /** @return table name */
+    public byte[] getTableName() {
+        return this.m_tableName;
+    }
+
+    /** @return starting row key */
+    public byte[] getStartRow() {
+        return this.m_startRow;
+    }
+
+    /** @return end row key */
+    public byte[] getEndRow() {
+        return this.m_endRow;
+    }
+
+    public boolean getEndRowInclusive() {
+        return m_endRowInclusive;
+    }
+
+    public void setEndRowInclusive(boolean isInclusive) {
+        m_endRowInclusive = isInclusive;
+    }
+
+    /** @return list of keys to get */
+    public TreeSet<String> getKeyList() {
+        return m_keyList;
+    }
+
+    public int getVersions() {
+        return m_versions;
+    }
+
+    /** @return get the source mode */
+    public HBaseConstants.SourceMode getSourceMode() {
+        return m_sourceMode;
+    }
+
+    public boolean getUseSalt() {
+        return m_useSalt;
+    }
+
+    /** @return the region's hostname */
+    public String getRegionLocation() {
+        LOG.debug("REGION GETTER : " + m_regionLocation);
+
+        return this.m_regionLocation;
+    }
+
+    public String[] getLocations() {
+        LOG.debug("REGION ARRAY : " + m_regionLocation);
+
+        return new String[] { this.m_regionLocation };
+    }
+
+
+    public void copy(HBaseTableSplitBase that) {
+        this.m_endRow = that.m_endRow;
+        this.m_endRowInclusive = that.m_endRowInclusive;
+        this.m_keyList = that.m_keyList;
+        this.m_sourceMode = that.m_sourceMode;
+        this.m_startRow = that.m_startRow;
+        this.m_tableName = that.m_tableName;
+        this.m_useSalt = that.m_useSalt;
+        this.m_versions = that.m_versions;
+    }
+
+    @Override
+    public void readFields(DataInput in) throws IOException {
+        LOG.debug("READ ME : " + in.toString());
+
+        this.m_tableName = Bytes.readByteArray(in);
+        this.m_regionLocation = Bytes.toString(Bytes.readByteArray(in));
+        this.m_sourceMode = HBaseConstants.SourceMode.valueOf(Bytes.toString(Bytes
+                .readByteArray(in)));
+        this.m_useSalt = Bytes.toBoolean(Bytes.readByteArray(in));
+
+        switch (this.m_sourceMode) {
+            case SCAN_RANGE:
+                this.m_startRow = Bytes.readByteArray(in);
+                this.m_endRow = Bytes.readByteArray(in);
+                this.m_endRowInclusive = Bytes.toBoolean(Bytes.readByteArray(in));
+                break;
+
+            case GET_LIST:
+                this.m_versions = Bytes.toInt(Bytes.readByteArray(in));
+                this.m_keyList = new TreeSet<String>();
+
+                int m = Bytes.toInt(Bytes.readByteArray(in));
+
+                for (int i = 0; i < m; i++) {
+                    this.m_keyList.add(Bytes.toString(Bytes.readByteArray(in)));
+                }
+                break;
+        }
+
+        LOG.debug("READ and CREATED : " + this);
+    }
+
+    @Override
+    public void write(DataOutput out) throws IOException {
+        LOG.debug("WRITE : " + this);
+
+        Bytes.writeByteArray(out, this.m_tableName);
+        Bytes.writeByteArray(out, Bytes.toBytes(this.m_regionLocation));
+        Bytes.writeByteArray(out, Bytes.toBytes(this.m_sourceMode.name()));
+        Bytes.writeByteArray(out, Bytes.toBytes(this.m_useSalt));
+
+        switch (this.m_sourceMode) {
+            case SCAN_RANGE:
+                Bytes.writeByteArray(out, this.m_startRow);
+                Bytes.writeByteArray(out, this.m_endRow);
+                Bytes.writeByteArray(out, Bytes.toBytes(this.m_endRowInclusive));
+                break;
+
+            case GET_LIST:
+                Bytes.writeByteArray(out, Bytes.toBytes(m_versions));
+                Bytes.writeByteArray(out, Bytes.toBytes(this.m_keyList.size()));
+
+                for (String k : this.m_keyList) {
+                    Bytes.writeByteArray(out, Bytes.toBytes(k));
+                }
+                break;
+        }
+
+        LOG.debug("WROTE : " + out.toString());
+    }
+}
diff --git a/src/main/java/parallelai/spyglass/hbase/HBaseTableSplitGranular.java b/src/main/java/parallelai/spyglass/hbase/HBaseTableSplitGranular.java
new file mode 100644
index 0000000..4de7153
--- /dev/null
+++ b/src/main/java/parallelai/spyglass/hbase/HBaseTableSplitGranular.java
@@ -0,0 +1,97 @@
+package parallelai.spyglass.hbase;
+
+import java.io.DataInput;
+import java.io.DataOutput;
+import java.io.IOException;
+import java.io.Serializable;
+import java.util.TreeSet;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.hadoop.hbase.HConstants;
+import org.apache.hadoop.hbase.util.Bytes;
+import org.apache.hadoop.mapred.InputSplit;
+
+import parallelai.spyglass.hbase.HBaseConstants.SourceMode;
+
+public class HBaseTableSplitGranular extends HBaseTableSplitBase {
+
+	private final Log LOG = LogFactory.getLog(HBaseTableSplitGranular.class);
+
+    /** default constructor */
+    public HBaseTableSplitGranular() {
+        this(HConstants.EMPTY_BYTE_ARRAY, HConstants.EMPTY_BYTE_ARRAY,
+                HConstants.EMPTY_BYTE_ARRAY, "", HBaseConstants.SourceMode.EMPTY, false);
+    }
+
+    /**
+     * Constructor
+     *
+     * @param tableName
+     * @param startRow
+     * @param endRow
+     * @param location
+     */
+    public HBaseTableSplitGranular(final byte[] tableName, final byte[] startRow,
+                               final byte[] endRow, final String location,
+                               final HBaseConstants.SourceMode sourceMode, final boolean useSalt) {
+        this.m_tableName = tableName;
+        this.m_startRow = startRow;
+        this.m_endRow = endRow;
+        this.m_regionLocation = location;
+        this.m_sourceMode = sourceMode;
+        this.m_useSalt = useSalt;
+    }
+
+    public HBaseTableSplitGranular(final byte[] tableName,
+                               final TreeSet<String> keyList, int versions, final String location,
+                               final HBaseConstants.SourceMode sourceMode, final boolean useSalt) {
+        this.m_tableName = tableName;
+        this.m_keyList = keyList;
+        this.m_versions = versions;
+        this.m_sourceMode = sourceMode;
+        this.m_regionLocation = location;
+        this.m_useSalt = useSalt;
+    }
+
+
+	@Override
+	public long getLength() {
+		// Not clear how to obtain this... seems to be used only for sorting
+		// splits
+		return 0;
+	}
+
+
+	@Override
+	public String toString() {
+		return String
+				.format(
+						"Table Name (%s) Region (%s) Source Mode (%s) Start Key (%s) Stop Key (%s) Key List Size (%s) Versions (%s) Use Salt (%s)",
+						Bytes.toString(m_tableName), m_regionLocation, m_sourceMode,
+						Bytes.toString(m_startRow), Bytes.toString(m_endRow),
+						(m_keyList != null) ? m_keyList.size() : "EMPTY", m_versions,
+						m_useSalt);
+	}
+
+	@Override
+	public int compareTo(HBaseTableSplitBase o) {
+        if( ! (o instanceof HBaseTableSplitGranular) ) return -1;
+
+		switch (m_sourceMode) {
+			case SCAN_ALL:
+			case SCAN_RANGE:
+				return Bytes.compareTo(getStartRow(), o.getStartRow());
+
+			case GET_LIST:
+				return m_keyList.equals(o.getKeyList()) ? 0 : -1;
+
+			case EMPTY:
+				return 0;
+
+			default:
+				return -1;
+		}
+
+	}
+}
\ No newline at end of file
diff --git a/src/main/java/parallelai/spyglass/hbase/HBaseTableSplitRegional.java b/src/main/java/parallelai/spyglass/hbase/HBaseTableSplitRegional.java
new file mode 100644
index 0000000..1ebfa3d
--- /dev/null
+++ b/src/main/java/parallelai/spyglass/hbase/HBaseTableSplitRegional.java
@@ -0,0 +1,127 @@
+package parallelai.spyglass.hbase;
+
+import java.io.DataInput;
+import java.io.DataOutput;
+import java.io.IOException;
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Vector;
+
+import org.apache.commons.lang.SerializationUtils;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.hadoop.hbase.util.Bytes;
+import org.apache.hadoop.mapred.InputSplit;
+
+public class HBaseTableSplitRegional extends HBaseTableSplitBase {
+
+	private final Log LOG = LogFactory.getLog(HBaseTableSplitRegional.class);
+
+	private List<HBaseTableSplitGranular> splits = new Vector<HBaseTableSplitGranular>();
+
+	/** default constructor */
+	private HBaseTableSplitRegional() {
+
+	}
+
+	public HBaseTableSplitRegional(String regionLocation) {
+		this.m_regionLocation = regionLocation;
+	}
+
+	@Override
+	public void readFields(DataInput in) throws IOException {
+		LOG.debug("REGIONAL READ ME : " + in.toString());
+
+        super.readFields(in);
+
+		int s = Bytes.toInt(Bytes.readByteArray(in));
+
+		for (int i = 0; i < s; i++) {
+			HBaseTableSplitGranular hbts = new HBaseTableSplitGranular();
+            hbts.readFields(in);
+
+			splits.add(hbts);
+		}
+
+		LOG.debug("REGIONAL READ and CREATED : " + this);
+	}
+
+	@Override
+	public void write(DataOutput out) throws IOException {
+		LOG.debug("REGIONAL WRITE : " + this);
+
+        super.write(out);
+
+		Bytes.writeByteArray(out, Bytes.toBytes(splits.size()));
+
+		for (HBaseTableSplitGranular hbts : splits) {
+			hbts.write(out);
+		}
+
+		LOG.debug("REGIONAL WROTE : " + out.toString());
+	}
+
+	@Override
+	public String toString() {
+		StringBuffer str = new StringBuffer();
+		str.append("HBaseTableSplitRegional : ");
+
+        str.append(super.toString());
+
+        str.append(" GRANULAR = > ");
+
+		for (HBaseTableSplitGranular hbt : splits) {
+			str.append(" [" + hbt.toString() + "]");
+		}
+
+		return str.toString();
+	}
+
+	@Override
+	public int compareTo(HBaseTableSplitBase o) {
+        if( ! (o instanceof HBaseTableSplitRegional) ) return -1;
+
+		return (splits.size() - ((HBaseTableSplitRegional)o).splits.size());
+	}
+
+	@Override
+	public long getLength() throws IOException {
+		return splits.size();
+	}
+
+	public void addSplit(HBaseTableSplitGranular hbt) throws IOException {
+        LOG.debug("ADD Split : " + hbt);
+
+		if (hbt.getRegionLocation().equals(m_regionLocation)) {
+			splits.add(hbt);
+            this.copy(hbt);
+        } else
+			throw new IOException("HBaseTableSplitGranular Region Location "
+					+ hbt.getRegionLocation()
+					+ " does NOT match MultiSplit Region Location " + m_regionLocation);
+	}
+
+//	public List<HBaseTableSplitGranular> getSplits() {
+//		return splits;
+//	}
+
+    public boolean hasMoreSplits() {
+        splitIterator = (splitIterator == null) ? splits.listIterator() : splitIterator;
+
+        return splitIterator.hasNext();
+    }
+
+    private Iterator<HBaseTableSplitGranular> splitIterator = null;
+
+    public HBaseTableSplitGranular getNextSplit() {
+        splitIterator = (splitIterator == null) ? splits.listIterator() : splitIterator;
+
+        if( splitIterator.hasNext() ) {
+            return splitIterator.next();
+        } else {
+            return null;
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/parallelai/spyglass/hbase/HBaseTap.java b/src/main/java/parallelai/spyglass/hbase/HBaseTap.java
index 07b5aa7..bfe6670 100644
--- a/src/main/java/parallelai/spyglass/hbase/HBaseTap.java
+++ b/src/main/java/parallelai/spyglass/hbase/HBaseTap.java
@@ -12,6 +12,8 @@
 
 package parallelai.spyglass.hbase;
 
+import parallelai.spyglass.hbase.HBaseConstants.SplitType;
+
 import parallelai.spyglass.hbase.HBaseConstants.SourceMode;
 import cascading.flow.FlowProcess;
 import cascading.tap.SinkMode;
@@ -63,6 +65,8 @@ public class HBaseTap extends Tap<JobConf, RecordReader, OutputCollector> {
   /** Field tableName */
   private String tableName;
 
+  private SplitType splitType = SplitType.GRANULAR;
+
   /**
    * Constructor HBaseTap creates a new HBaseTap instance.
    *
@@ -204,7 +208,7 @@ public class HBaseTap extends Tap<JobConf, RecordReader, OutputCollector> {
       return true;
     }
 
-    LOG.info("creating hbase table: {}", tableName);
+    LOG.info("Creating HBase Table: {}", tableName);
 
     HTableDescriptor tableDescriptor = new HTableDescriptor(tableName);
 
@@ -256,8 +260,19 @@ public class HBaseTap extends Tap<JobConf, RecordReader, OutputCollector> {
 //    process.getID();
 //    
 //    super.getFullIdentifier(conf);
-    
-    HBaseInputFormat.setTableName(conf, tableName);
+
+    switch(splitType) {
+        case GRANULAR:
+            HBaseInputFormatGranular.setTableName(conf, tableName);
+            break;
+
+        case REGIONAL:
+            HBaseInputFormatRegional.setTableName(conf, tableName);
+            break;
+
+        default:
+            LOG.error("Unknown Split Type : " + splitType);
+    }
     
     for( SourceConfig sc : sourceConfigList) {
       sc.configure(conf);
@@ -266,6 +281,10 @@ public class HBaseTap extends Tap<JobConf, RecordReader, OutputCollector> {
     super.sourceConfInit(process, conf);
   }
 
+  public void setInputSplitType(SplitType sType) {
+      this.splitType = sType;
+  }
+
   @Override
   public boolean equals(Object object) {
     if (this == object) {