Disk usage has increased in the nightly Logging benchmark #103002
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>refactoring
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Disk usage has increased in the nightly Logging benchmark [1] (on 2023-12-04), from 182GB to 190GB. A little more than 4%. This lines up with the bump to Lucene 9.9.0 in Elasticsearch.
Lucene 9.9.0 has changed postings back to using FOR (from PFOR)[2] . This is the likely change that has resulted in the additional usage.
[1] https://elasticsearch-benchmarks.elastic.co/#tracks/logging/nightly/default/30d - look at
nightly-elastic/logs-io
[2] apache/lucene#12741
Note from the Lucene 9.9.0 changelog: "GITHUB#12696: Change Postings back to using FOR in Lucene99PostingsFormat. Freqs, positions and offset keep using PFOR."
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