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From Michael Dürig (JIRA) <j...@apache.org>
Subject [jira] [Commented] (OAK-4097) Add metric for FileStore journal writes
Date Tue, 08 Mar 2016 19:16:41 GMT

    [ https://issues.apache.org/jira/browse/OAK-4097?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15185546#comment-15185546
] 

Michael Dürig commented on OAK-4097:
------------------------------------

My preferred solution would be OAK-4103. Until then I'm fine with such metric though. 

> 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: segmentmk
>            Reporter: Chetan Mehrotra
>            Assignee: Chetan Mehrotra
>            Priority: Minor
>             Fix For: 1.6
>
>
> 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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