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| -rw-r--r-- | extra/elasticsearch/README.md | 11 |
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diff --git a/extra/elasticsearch/README.md b/extra/elasticsearch/README.md index 15c00b4c..60469250 100644 --- a/extra/elasticsearch/README.md +++ b/extra/elasticsearch/README.md @@ -60,6 +60,17 @@ Or, in a bulk production live-stream conversion: time zcat /srv/fatcat/snapshots/release_export_expanded.json.gz | pv -l | parallel -j20 --linebuffer --round-robin --pipe ./fatcat_transform.py elasticsearch-releases - - | esbulk -verbose -size 20000 -id ident -w 8 -index fatcat_release -type release time zcat /srv/fatcat/snapshots/container_export.json.gz | pv -l | ./fatcat_transform.py elasticsearch-containers - - | esbulk -verbose -size 20000 -id ident -w 8 -index fatcat_container -type container +## Index Aliases + +To make re-indexing and schema changes easier, we can create versioned (or +time-stamped) elasticsearch indexes, and then point to them using index +aliases. The index alias updates are fast and atomic, so we can slowly build up +a new index and then cut over with no downtime. + + http put :9200/fatcat_release_v03 < release_schema.json + +TODO: more docs for actual cut-over + ## Full-Text Querying A generic full-text "query string" query look like this (replace "blood" with |