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https://issues.apache.org/jira/browse/CASSANDRA-13751?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Blake Eggleston updated CASSANDRA-13751:
----------------------------------------
    Resolution: Fixed
        Status: Resolved  (was: Patch Available)

Got the utest passing. dtests failures were flaky/succeeding locally. Committed 
as {{9c3354e3211c6a3f3982e87477e156c29cd9b7ea}}

> Race / ref leak in PendingRepairManager
> ---------------------------------------
>
>                 Key: CASSANDRA-13751
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13751
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Blake Eggleston
>            Assignee: Blake Eggleston
>            Priority: Minor
>             Fix For: 4.0
>
>
> PendingRepairManager#getScanners has an assertion that confirms an sstable 
> is, in fact, marked as pending repair. Since validation compactions don't use 
> the same concurrency controls as proper compactions, they can race with 
> promotion/demotion compactions and end up getting assertion errors when the 
> pending repair id is changed while the scanners are being acquired. Also, 
> error handling in PendingRepairManager and CompactionStrategyManager leaks 
> refs when this happens.



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