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Posted to issues@lucene.apache.org by "Adrien Grand (Jira)" <ji...@apache.org> on 2020/09/16 12:58:00 UTC

[jira] [Resolved] (LUCENE-9510) SortingStoredFieldsConsumer should use a format that has better random-access

     [ https://issues.apache.org/jira/browse/LUCENE-9510?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Adrien Grand resolved LUCENE-9510.
----------------------------------
    Fix Version/s: 8.7
       Resolution: Fixed

> SortingStoredFieldsConsumer should use a format that has better random-access
> -----------------------------------------------------------------------------
>
>                 Key: LUCENE-9510
>                 URL: https://issues.apache.org/jira/browse/LUCENE-9510
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Adrien Grand
>            Priority: Minor
>             Fix For: 8.7
>
>          Time Spent: 40m
>  Remaining Estimate: 0h
>
> We noticed some indexing rate regressions in Elasticsearch after upgrading to a new Lucene snapshot. This is due to the fact that SortingStoredFieldsConsumer is using the default codec to write stored fields on flush. Compression doesn't matter much for this case since these are temporary files that get removed on flush after the segment is sorted anyway so we could switch to a format that has faster random access.



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