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Posted to oak-issues@jackrabbit.apache.org by "Chetan Mehrotra (JIRA)" <ji...@apache.org> on 2015/04/15 17:47:59 UTC
[jira] [Comment Edited] (OAK-2755) Consolidated JMX view of all
EventListener related statistics
[ https://issues.apache.org/jira/browse/OAK-2755?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14495748#comment-14495748 ]
Chetan Mehrotra edited comment on OAK-2755 at 4/15/15 3:47 PM:
---------------------------------------------------------------
[updated patch|^OAK-2755-3.patch] based on above approach
[~mduerig] Can you have a look?
was (Author: chetanm):
[updated patch|^OAK-2755-2.patch] based on above approach
[~mduerig] Can you have a look?
> Consolidated JMX view of all EventListener related statistics
> -------------------------------------------------------------
>
> Key: OAK-2755
> URL: https://issues.apache.org/jira/browse/OAK-2755
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: core
> Reporter: Chetan Mehrotra
> Assignee: Chetan Mehrotra
> Labels: monitoring, observation
> Fix For: 1.0.13, 1.3.0
>
> Attachments: OAK-2755-2.patch, OAK-2755-3.patch, OAK-2755.patch, consolidated-listener-stats-2.png, consolidated-listener-stats.png
>
>
> Oak Observation support exposes a {{EventListenerMBean}} [1] which provide quite a bit of details around registered observation listeners. However in a typical application there would be multiple listeners registered. To simplify monitoring it would be helpful to have a _consolidated_ view of all listeners related statistics.
> Further the stats can also include some more details which are Oak specific
> * Subtree paths to which the listener listens to - By default JCR Api allows single path however Oak allows a listener to register to multiple paths
> * If listener is enabled to listen to cluster local and cluster external changes
> * Size of queue in BackgroundObserver
> * Distribution of change types present in the queue - Local, External etc
> [1] https://github.com/apache/jackrabbit/blob/trunk/jackrabbit-api/src/main/java/org/apache/jackrabbit/api/jmx/EventListenerMBean.java
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