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Posted to oak-issues@jackrabbit.apache.org by "Andrei Dulceanu (JIRA)" <ji...@apache.org> on 2018/03/06 13:36:00 UTC

[jira] [Resolved] (OAK-7259) Improve SegmentNodeStoreStats to include number of commits per thread and threads currently waiting on the semaphore

     [ https://issues.apache.org/jira/browse/OAK-7259?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrei Dulceanu resolved OAK-7259.
----------------------------------
    Resolution: Fixed

Fixed at r1825984.

> Improve SegmentNodeStoreStats to include number of commits per thread and threads currently waiting on the semaphore
> --------------------------------------------------------------------------------------------------------------------
>
>                 Key: OAK-7259
>                 URL: https://issues.apache.org/jira/browse/OAK-7259
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          Components: segment-tar
>            Reporter: Andrei Dulceanu
>            Assignee: Andrei Dulceanu
>            Priority: Major
>              Labels: tooling
>             Fix For: 1.9.0, 1.10
>
>
> When investigating the performance of  {{segment-tar}}, the source of the writes (commits) is a very useful indicator of the cause.
> To better understand which threads are currently writing in the repository and which are blocked on the semaphore, we need to improve {{SegmentNodeStoreStats}} to:
>  * expose the number of commits executed per thread
>  * expose threads currently waiting on the semaphore



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