From 076d44fa40ce93cb6cc14fa600f91f4c9ef5d1e1 Mon Sep 17 00:00:00 2001
From: Ellen Spertus <ellen.spertus@gmail.com>
Date: Thu, 31 May 2018 19:12:49 +0000
Subject: Added tip on OutOfMemoryError.

---
 scalding/README.md | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/scalding/README.md b/scalding/README.md
index 9df06a6..13c2e1a 100644
--- a/scalding/README.md
+++ b/scalding/README.md
@@ -1,4 +1,3 @@
-
 This directory contains Hadoop map/reduce jobs written in Scala (compiled to
 the JVM) using the Scalding framework.
 
@@ -27,6 +26,11 @@ Run on cluster:
         com.twitter.scalding.Tool sandcrawler.HBaseRowCountJob --hdfs \
         --app.conf.path thing.conf \
         --output hdfs:///user/bnewbold/spyglass_out_test 
+        
+If your `sbt` task fails with this error:
+
+     java.util.concurrent.ExecutionException: java.lang.OutOfMemoryError: Metaspace
+try restarting `sbt` with more memory (e.g., `sbt -mem 2048`).
 
 ## Building SpyGlass Jar
 
-- 
cgit v1.2.3