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https://issues.apache.org/jira/browse/OAK-4927?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15568276#comment-15568276
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Alex Parvulescu commented on OAK-4927:
--------------------------------------

right, simplest fix is to remove the warning (same as OAK-4371), next best 
option is to increase the number that triggers this warning to (at least) 4. 
Also, I don't think you are supposed to run online compaction on 1.4, it's not 
reliable enough.

> FileStore compaction should account for multiple valid checkpoints
> ------------------------------------------------------------------
>
>                 Key: OAK-4927
>                 URL: https://issues.apache.org/jira/browse/OAK-4927
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          Components: segmentmk
>    Affects Versions: 1.4
>            Reporter: Chetan Mehrotra
>            Assignee: Alex Parvulescu
>            Priority: Minor
>              Labels: candidate_oak_1_4
>             Fix For: 1.6
>
>
> With Oak 1.4 we have setup which configure multiple async indexers which lead 
> to multiple checkpoint present in the system. OAK-4043 addressed that in 
> oak-run. However currently the 
> {{org.apache.jackrabbit.oak.plugins.segment.file.FileStore#compact}} logs a 
> warning if more than one checkpoint is found. 
> {noformat}
> 22:34:21.797 [main] WARN  o.a.j.o.p.segment.file.FileStore - TarMK GC #0: 
> compaction found 2 checkpoints, you might need to run checkpoint cleanup
> {noformat}
> This warning should be fixed



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