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https://issues.apache.org/jira/browse/HBASE-5189?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13429452#comment-13429452
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stack commented on HBASE-5189:
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bq. Can someone comment on the original idea/use case of the region split
counter?
I'm pretty sure that the original implementation had little thought spent on it
(and it sounds plain broke).
Patch looks good to me (What you think Elliott). Any chance of a release note
documenting its changed format Matteo? Good on you.
> Add metrics to keep track of region-splits in RS
> ------------------------------------------------
>
> Key: HBASE-5189
> URL: https://issues.apache.org/jira/browse/HBASE-5189
> Project: HBase
> Issue Type: Improvement
> Components: metrics, regionserver
> Affects Versions: 0.90.5, 0.92.0
> Reporter: Mubarak Seyed
> Assignee: Mubarak Seyed
> Priority: Minor
> Labels: noob
> Fix For: 0.94.0
>
> Attachments: HBASE-5189-persistent.patch, HBASE-5189.trunk.v1.patch,
> HBASE-5189.trunk.v2.patch
>
>
> For write-heavy workload with region-size 1 GB, region-split is considerably
> high. We do normally grep the NN log (grep "mkdir*.split" NN.log | sort |
> uniq -c) to get the count.
> I would like to have a counter incremented each time region-split execution
> succeeds and this counter exposed via the metrics stuff in HBase.
> - regionSplitSuccessCount
> - regionSplitFailureCount (will help us to correlate the timestamp range in
> RS logs across all RS)
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