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From "Eric Newton (JIRA)" <>
Subject [jira] [Resolved] (ACCUMULO-4000) log recovery failed after hard reset
Date Fri, 18 Sep 2015 19:04:04 GMT


Eric Newton resolved ACCUMULO-4000.
    Resolution: Won't Fix

> log recovery failed after hard reset
> ------------------------------------
>                 Key: ACCUMULO-4000
>                 URL:
>             Project: Accumulo
>          Issue Type: Bug
>    Affects Versions: 1.6.2
>         Environment: very large cluster, accumulo 1.6.2, hadoop 2.5.0 (cdh 5.3)
>            Reporter: Eric Newton
>            Assignee: Eric Newton
> Had a hardware failure on a single node within a large cluster.  Tablets were migrated
away, but one tablet would not recover.  The Closer run by the master to release the write
lease on the WAL failed repeatedly.
> Afterwards, it was determined the file was small, probably just opened and used at the
moment the machine failed.  The block could not be recovered from any replicas.
> One question raised: does the write pipeline acknowledge the sync, before the write pipeline

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