[jira] [Updated] (HBASE-5189) Add metrics to keep track of region-splits in RS

["Lars Hofhansl (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-5189?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Lars Hofhansl updated HBASE-5189:
---------------------------------

    Fix Version/s: 0.94.0
    
> 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: Matteo Bertozzi
>            Priority: Minor
>              Labels: noob
>             Fix For: 0.94.0, 0.95.0
>
>         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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