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https://issues.apache.org/jira/browse/HBASE-7025?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13819559#comment-13819559
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stack commented on HBASE-7025:
------------------------------

This looks like a good idea.  Count of WALs impinges on MTTR too so would be 
good being able to graph this over time.

> Metric for how many WAL files a regionserver is carrying
> --------------------------------------------------------
>
>                 Key: HBASE-7025
>                 URL: https://issues.apache.org/jira/browse/HBASE-7025
>             Project: HBase
>          Issue Type: Improvement
>          Components: metrics
>            Reporter: stack
>
> A metric that shows how many WAL files a regionserver is carrying at any one 
> time would be useful for fingering those servers that are always over the 
> upper bounds and in need of attention



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