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https://issues.apache.org/jira/browse/HBASE-6974?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lars Hofhansl updated HBASE-6974:
---------------------------------
Resolution: Fixed
Hadoop Flags: Reviewed
Status: Resolved (was: Patch Available)
Committed to 0.94 and 0.96.
Thanks for the patch, Drz. :)
> Metric for blocked updates
> --------------------------
>
> Key: HBASE-6974
> URL: https://issues.apache.org/jira/browse/HBASE-6974
> Project: HBase
> Issue Type: Bug
> Reporter: Lars Hofhansl
> Assignee: Michael Drzal
> Priority: Critical
> Fix For: 0.94.3, 0.96.0
>
> Attachments: 6974-v5.txt, HBASE-6974.patch, HBASE-6974-v2.patch,
> HBASE-6974-v3.patch, HBASE-6974-v4.patch
>
>
> When the disc subsystem cannot keep up with a sustained high write load, a
> region will eventually block updates to throttle clients.
> (HRegion.checkResources).
> It would be nice to have a metric for this, so that these occurrences can be
> tracked.
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