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Posted to issues@hbase.apache.org by "Bryan Beaudreault (Jira)" <ji...@apache.org> on 2022/07/21 00:39:00 UTC

[jira] [Updated] (HBASE-27229) BucketCache statistics should not count evictions by hfile

     [ https://issues.apache.org/jira/browse/HBASE-27229?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bryan Beaudreault updated HBASE-27229:
--------------------------------------
    Assignee: Bryan Beaudreault
      Labels: patch-available  (was: )
      Status: Patch Available  (was: Open)

https://github.com/apache/hbase/pull/4639

> BucketCache statistics should not count evictions by hfile
> ----------------------------------------------------------
>
>                 Key: HBASE-27229
>                 URL: https://issues.apache.org/jira/browse/HBASE-27229
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Bryan Beaudreault
>            Assignee: Bryan Beaudreault
>            Priority: Major
>              Labels: patch-available
>
> The eviction metrics are helpful for determining how much access-related churn there is in your block cache. The LruBlockCache properly ignores evictions by invalidation of HFile, but the BucketCache tracks them. 
> We should make the BucketCache work similarly so that one can get an accurate view of the evictions occurring through too much random access or too large working set.



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