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Posted to issues@hbase.apache.org by "Hadoop QA (Commented) (JIRA)" <ji...@apache.org> on 2012/03/06 19:33:03 UTC

[jira] [Commented] (HBASE-5533) Add more metrics to HBase

    [ https://issues.apache.org/jira/browse/HBASE-5533?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13223516#comment-13223516 ] 

Hadoop QA commented on HBASE-5533:
----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12517268/hbase-5533-0.92.patch
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 4 new or modified tests.

    -1 patch.  The patch command could not apply the patch.

Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/1116//console

This message is automatically generated.
                
> Add more metrics to HBase
> -------------------------
>
>                 Key: HBASE-5533
>                 URL: https://issues.apache.org/jira/browse/HBASE-5533
>             Project: HBase
>          Issue Type: Improvement
>    Affects Versions: 0.92.0
>            Reporter: Shaneal Manek
>            Assignee: Shaneal Manek
>            Priority: Minor
>         Attachments: hbase-5533-0.92.patch
>
>
> To debub/monitor production clusters, there are some more metrics I wish I had available.
> In particular:
> - Although the average FS latencies are useful, a 'histogram' of recent latencies (90% of reads completed in under 100ms, 99% in under 200ms, etc) would be more useful
> - Similar histograms of latencies on common operations (GET, PUT, DELETE) would be useful
> - Counting the number of accesses to each region to detect hotspotting
> - Exposing the current number of HLog files

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