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https://issues.apache.org/jira/browse/GEODE-8667?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17227672#comment-17227672
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ASF GitHub Bot commented on GEODE-8667:
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upthewaterspout commented on pull request #5689:
URL: https://github.com/apache/geode/pull/5689#issuecomment-723359120
I agree with Darrel. Maybe the problem this test is finding is that the
compaction is leaving behind an empty oplog (perhaps it generates an empty
oplog to write to when it starts or something)?
If that's the case though - it's not much of a bug, especially since it gets
cleaned up on startup the next time.
If I remember what you were showing me earlier, I thought the compaction on
startup after the offline compact was taking a long time. I wouldn't expect
that to be the case if all it's doing is removing empty oplogs?
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> Duplicate online Oplog compaction after offline Oplog compaction
> ----------------------------------------------------------------
>
> Key: GEODE-8667
> URL: https://issues.apache.org/jira/browse/GEODE-8667
> Project: Geode
> Issue Type: Bug
> Reporter: Jianxia Chen
> Assignee: Jianxia Chen
> Priority: Major
> Labels: GeodeOperationAPI, pull-request-available
>
> Use `compact offline-disk-store` command to compact the Oplogs offline.
> Then restart the servers.
> The logs show OplogCompactor thread is compacting Oplogs again when
> restarting the servers, even though the Oplogs were just compacted offline.
> For example:
> ```
> [info 2020/10/27 16:32:22.534 PDT <Idle OplogCompactor1> tid=0x35] Recovered
> values for disk store DEFAULT with unique id
> 76393d3c-dd10-4b89-b655-821d37631774
> [info 2020/10/27 16:32:22.535 PDT <OplogCompactor DEFAULT for oplog oplog#2>
> tid=0x35] OplogCompactor for DEFAULT compaction oplog id(s): oplog#2
> [info 2020/10/27 16:32:22.537 PDT <OplogCompactor DEFAULT for oplog oplog#2>
> tid=0x35] compaction did 2 creates and updates in 2 ms
> [info 2020/10/27 16:32:22.537 PDT <Oplog Delete Task1> tid=0x36] Deleted
> oplog#2 crf for disk store DEFAULT.
> [info 2020/10/27 16:32:22.538 PDT <Oplog Delete Task1> tid=0x36] Deleted
> oplog#2 krf for disk store DEFAULT.
> [info 2020/10/27 16:32:22.538 PDT <Oplog Delete Task1> tid=0x36] Deleted
> oplog#2 drf for disk store DEFAULT.
> ```
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