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https://issues.apache.org/jira/browse/OAK-4097?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15409323#comment-15409323
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Michael Dürig commented on OAK-4097:
------------------------------------

[~chetanm], agreed with the test concern. But let's apply the patch anyway and 
keep the issue open until we have a test (if feasible) to avoid the patch 
getting stale. 

> Add metric for FileStore journal writes
> ---------------------------------------
>
>                 Key: OAK-4097
>                 URL: https://issues.apache.org/jira/browse/OAK-4097
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          Components: segment-tar
>            Reporter: Chetan Mehrotra
>            Assignee: Andrei Dulceanu
>            Priority: Minor
>             Fix For: Segment Tar 0.0.10
>
>         Attachments: OAK-4097-01.patch
>
>
> TarMK flush thread should run every 5 secs and flush the current root head to 
> journal.log. It would be good to have a metric to capture the number of runs 
> per minute
> This would help in confirming if flush is working at expected frequency or 
> delay in acquiring locks is causing some delays



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