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From "Stefan Podkowinski (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-13398) Skip mutating repairedAt of already repaired sstables
Date Tue, 04 Apr 2017 08:04:41 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-13398?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15954767#comment-15954767
] 

Stefan Podkowinski commented on CASSANDRA-13398:
------------------------------------------------

Post CASSANDRA-9143, {{CompactionManager.performAnticompaction()}} is now expected to work
in a different context since before, as we now do anti-compactions before incremental repairs
and not for full repairs at all anymore. The only way the method is called is by passing UNREPAIRED_SSTABLE
as repairedAt value. At the same time we should only anti-compact from the unrepaired set
anyways (incr. repairs), but in the light of this filtering by isRepaired() doesn't make sense
anymore and is potentially dangerous. This of course does also apply to the changes from CASSANDRA-13153
and not only to your patch, Paulo.

I'd also suggest to look at the mutatedRepairStatuses/mutatedRepairStatusToNotify/wasRepairedBefore
interactions again in this context. They should be either obsolete with Paulos suggested patch,
or dangerous when called with UNREPAIRED_SSTABLE as repairedAt.

/cc [~bdeggleston]

> Skip mutating repairedAt of already repaired sstables
> -----------------------------------------------------
>
>                 Key: CASSANDRA-13398
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13398
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Paulo Motta
>            Assignee: Paulo Motta
>            Priority: Minor
>
> CASSANDRA-13153 skips anticompaction on sstables already repaired, but we are not skipping
mutating repairedAt when the sstable is fully contained in the repaired range.



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