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https://issues.apache.org/jira/browse/HBASE-5786?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13396880#comment-13396880
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Elliott Clark commented on HBASE-5786:
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I actually think that most metrics should go toward histograms rather than
TimeVaryingRate . Others have mentioned that an average is not really useful
when hbase is the primary data store of a live website/app. That use case is
much more interested in the 75/95/99th percentile. Once HBASE-6211 is in I can
take this up. Maybe with some of the metrics refactor that Lars is talking
about.
> Implement histogram metrics for flush and compaction latencies and sizes.
> -------------------------------------------------------------------------
>
> Key: HBASE-5786
> URL: https://issues.apache.org/jira/browse/HBASE-5786
> Project: HBase
> Issue Type: New Feature
> Components: metrics, regionserver
> Affects Versions: 0.92.2, 0.94.0, 0.96.0
> Reporter: Jonathan Hsieh
>
> Average time for region operations doesn't really tell a useful story when
> that help diagnose anomalous conditions.
> It would be extremely useful to add histogramming metrics similar to
> HBASE-5533 for region operations like flush, compaction and splitting. The
> probably should be forward biased at a much coarser granularity however
> (maybe decay every day?)
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