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https://issues.apache.org/jira/browse/HBASE-16661?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15518029#comment-15518029
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Dustin Pho commented on HBASE-16661:
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Regarding 2) -- `LOG.fatal(...)` over `LOG.error()` for this case? Should
MetricsRegionWrapperImpl#getLastMajorCompactionAge return -1 in this case (and
in the case where a major compaction has not happened)? Returning 0 implies
that a major compaction just occurred.
> Add last major compaction age to per-region metrics
> ---------------------------------------------------
>
> Key: HBASE-16661
> URL: https://issues.apache.org/jira/browse/HBASE-16661
> Project: HBase
> Issue Type: Improvement
> Reporter: Gary Helmling
> Assignee: Dustin Pho
> Priority: Minor
> Attachments: HBASE-16661.001.patch
>
>
> After HBASE-12859, we can now track the last major compaction timestamp for
> each region. However, this is only exposed through cluster status reporting
> and the admin API.
> We have similar per-region metrics around storefile age, but none that
> filters on major compaction specifically.
> Let's add a metric for last major compaction age.
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