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Posted to issues@hbase.apache.org by "Zheng Wang (Jira)" <ji...@apache.org> on 2022/04/30 01:30:00 UTC

[jira] [Assigned] (HBASE-26987) The length of compact queue grows too big when the compacting is slow

     [ https://issues.apache.org/jira/browse/HBASE-26987?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Zheng Wang reassigned HBASE-26987:
----------------------------------

    Assignee: Zheng Wang

> The length of compact queue grows too big when the compacting is slow
> ---------------------------------------------------------------------
>
>                 Key: HBASE-26987
>                 URL: https://issues.apache.org/jira/browse/HBASE-26987
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Zheng Wang
>            Assignee: Zheng Wang
>            Priority: Major
>         Attachments: image-2022-04-29-10-26-09-351.png, image-2022-04-29-10-26-18-323.png, image-2022-04-29-10-26-24-087.png
>
>
> For some system compaction, we set the selectNow to false, so the file selecting will not be done until the compaction running, it brings side effect, if another compacting is slow, we may put lots of compaction to queue, because the filesCompacting of Hstore is empty in the meantime.
> An example shows at attachments, there are 154 regions and about 2000 hfiles, but the length of compact queue grows to 1391, it cause confusion and may trigger unexpected alarm.



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