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https://issues.apache.org/jira/browse/ACCUMULO-2480?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eric Newton updated ACCUMULO-2480:
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Fix Version/s: 1.7.0
> ha fail-failover failure
> ------------------------
>
> Key: ACCUMULO-2480
> URL: https://issues.apache.org/jira/browse/ACCUMULO-2480
> Project: Accumulo
> Issue Type: Bug
> Components: master, tserver
> Environment: running continuous ingest on a 74-node HA NN hadoop 2.3
> cluster, 1.6.0-SNAPSHOT.
> Reporter: Eric Newton
> Fix For: 1.7.0
>
>
> Ran {{service network stop}} on the active NN. The service failed to switch
> over since the fencing script on the standby failed to run (sshfence).
> After the network interface was re-established, the standby took over.
> However, accumulo ingest began to have very long hold times since the standby
> was not providing service for several minutes.
> The master attempted to shutdown the tablet servers with hold time.
> The filesystem hook closed the filesystem, and the servers got stuck
> endlessly trying to write to the WAL.
> Even after the NN was active, because the filesytem was closed, attempts to
> get a new WAL continued to fail.
> * why didn't the tablet servers stop?
> * WAL loop should be able to terminate if they see an IOException that
> indicates that the filesystem is closed
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