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https://issues.apache.org/jira/browse/ACCUMULO-1645?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Josh Elser updated ACCUMULO-1645:
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Fix Version/s: (was: 1.4.4)
1.4.5
> Provide better information on unassigned tablets on the monitor
> ---------------------------------------------------------------
>
> Key: ACCUMULO-1645
> URL: https://issues.apache.org/jira/browse/ACCUMULO-1645
> Project: Accumulo
> Issue Type: Improvement
> Components: monitor
> Affects Versions: 1.4.3
> Reporter: Josh Elser
> Fix For: 1.4.5
>
>
> Take the situation when live ingest occurs on a system. During live ingest,
> many tablet servers die, due to unexpected issues (data-center issues, for
> example). When the tablets are reassigned to a new tabletserver, if all
> copies of the necessary WAL files for that tablet were contained on servers
> which are now dead, the tablet cannot be assigned until those files can be
> found.
> This presents itself on the monitor as unassigned tablets, but doesn't denote
> any additional information about which table they belong to, the extent, or
> even that this is due to missing WAL files. It would be nice to definitively
> know which tablets are offline, the WAL files which are missing, and any
> additional information Accumulo might have. This would alleviate the
> administrator of the system from having to guess as to why said tablets are
> offline.
> Due to the HDFS WAL support in 1.5, this is even less of a concern than it is
> in 1.4 due to the decreased likelihood of a WAL file going missing.
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