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Posted to oak-issues@jackrabbit.apache.org by "Chetan Mehrotra (JIRA)" <ji...@apache.org> on 2015/04/23 10:36:38 UTC

[jira] [Commented] (OAK-2065) JMX stats for operations being performed in DocumentStore

    [ https://issues.apache.org/jira/browse/OAK-2065?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14508671#comment-14508671 ] 

Chetan Mehrotra commented on OAK-2065:
--------------------------------------

We can also capture stats around backgoundOperationLock around no waiters, thread waiting etc as part of that

> JMX stats for operations being performed in DocumentStore
> ---------------------------------------------------------
>
>                 Key: OAK-2065
>                 URL: https://issues.apache.org/jira/browse/OAK-2065
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          Components: mongomk
>            Reporter: Chetan Mehrotra
>            Assignee: Chetan Mehrotra
>             Fix For: 1.3.0
>
>
> Currently DocumentStore performs various background operations like
> # Cache consistency check
> # Pushing the lastRev updates
> # Synchrnizing the root node version
> We should capture some stats like time taken in various task and expose them over JMX to determine if those background operations are performing well or not. For example its important that all tasks performed in background task should be completed under 1 sec (default polling interval). If the time taken increases then it would be cause of concern
> See http://markmail.org/thread/57fax4nyabbubbef



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