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https://issues.apache.org/jira/browse/OAK-2403?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14278777#comment-14278777
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Michael Dürig commented on OAK-2403:
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An additional idea was to have a JMX bean that lists all .tar files, with 
date+time of when they were created or changed, size, date+time of 
compaction+cleanup runs. So that we can see the timeline of compaction runs and 
calculate the disk space used by content changes and compaction runs, and 
compare that to the open sessions.



> Improve monitoring capabilities for TarMk revision gc
> -----------------------------------------------------
>
>                 Key: OAK-2403
>                 URL: https://issues.apache.org/jira/browse/OAK-2403
>             Project: Jackrabbit Oak
>          Issue Type: Task
>          Components: segmentmk
>            Reporter: Michael Dürig
>            Assignee: Michael Dürig
>              Labels: gc, monitoring
>
> Container devoted to improving monitoring of the TarMk revision garbage 
> collection process. The overall goal is to make it more transparent what 
> revision gc does, how it performs, why it failed etc. 



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