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https://issues.apache.org/jira/browse/OAK-4543?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15397210#comment-15397210
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Marcel Reutegger commented on OAK-4543:
---------------------------------------

bq. queue length is increasing with listener with relatively low ratio

Please note, this doesn't necessarily mean somethings is wrong. It may also 
mean the filter set by the listener is 'inefficient'. E.g. listening for any 
event on a given node type is currently not optimized, while a path filter is.

> Add info about event generation and consumption by observer
> -----------------------------------------------------------
>
>                 Key: OAK-4543
>                 URL: https://issues.apache.org/jira/browse/OAK-4543
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>            Reporter: Vikas Saurabh
>            Assignee: Marcel Reutegger
>            Priority: Minor
>              Labels: candidate_oak_1_0, candidate_oak_1_2, candidate_oak_1_4, 
> monitoring, observation, performance
>             Fix For: 1.6
>
>         Attachments: OAK-4543.patch
>
>
> I'm not sure if it's possible in the current scheme of things 
> (implementation), but it'd useful to be able to easily differentiate between 
> slow diff calculation or slow observer as a reason to see why observation 
> queue might fill up.



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