[jira] [Resolved] (ACCUMULO-4428) GC does not delete WAL files belonging to dead tservers

["Josh Elser (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ACCUMULO-4428?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Josh Elser resolved ACCUMULO-4428.
----------------------------------
    Resolution: Fixed

Cherry-picked back to 1.6, undo'ing jdk7-isms and some internal API stuff.

> GC does not delete WAL files belonging to dead tservers
> -------------------------------------------------------
>
>                 Key: ACCUMULO-4428
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-4428
>             Project: Accumulo
>          Issue Type: Bug
>    Affects Versions: 1.7.2
>            Reporter: Adam J Shook
>            Assignee: Adam J Shook
>            Priority: Blocker
>             Fix For: 1.6.6, 1.7.3
>
>          Time Spent: 6.5h
>  Remaining Estimate: 0h
>
> The GarbageCollectWriteAheadLogs uses a Map<HostAndPort,Long> to track when it had first seen a dead tserver, waiting an hour before deleting the files.  However, a new instance of this class is re-created during each run of the SimpleGarbageCollector, causing the state of the dead tservers to be lost.  All of the WAL files belonging to a dead tserver will never be removed.



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