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Posted to issues-all@impala.apache.org by "Michael Smith (Jira)" <ji...@apache.org> on 2023/03/24 16:20:00 UTC
[jira] [Resolved] (IMPALA-11966) Enable cache_ozone_file_handles by default
[ https://issues.apache.org/jira/browse/IMPALA-11966?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michael Smith resolved IMPALA-11966.
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Fix Version/s: Impala 4.3.0
Resolution: Fixed
> Enable cache_ozone_file_handles by default
> ------------------------------------------
>
> Key: IMPALA-11966
> URL: https://issues.apache.org/jira/browse/IMPALA-11966
> Project: IMPALA
> Issue Type: Improvement
> Components: be
> Reporter: David Rorke
> Assignee: Michael Smith
> Priority: Major
> Labels: ozone
> Fix For: Impala 4.3.0
>
>
> Ozone file handle caching support was added in IMPALA-10214 but disabled by default initially. Subsequent performance testing with TPC-DS at 10TB scale has shown that enabling Ozone file handle caching improves TPC-DS geomean query time by 10%. The cache_ozone_file_handles parameter should be enabled by default.
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