hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HBASE-6377) HBASE-5533 metrics miss all operations submitted via MultiAction
Date Fri, 13 Jul 2012 01:05:36 GMT

     [ https://issues.apache.org/jira/browse/HBASE-6377?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andrew Purtell resolved HBASE-6377.
-----------------------------------

       Resolution: Fixed
    Fix Version/s: 0.96.0
     Release Note: The misleading "getRequestLatency", "deleteRequestLatency", and "putRequestLatency"
histograms were removed from metrics because such requests often were not actually measured.
     Hadoop Flags: Reviewed

I committed the "remove-get-put-delete-histograms" patches to trunk and 0.94 branch. Thanks
everyone for the feedback.
                
> HBASE-5533 metrics miss all operations submitted via MultiAction
> ----------------------------------------------------------------
>
>                 Key: HBASE-6377
>                 URL: https://issues.apache.org/jira/browse/HBASE-6377
>             Project: HBase
>          Issue Type: Bug
>          Components: metrics, regionserver
>    Affects Versions: 0.96.0, 0.94.1
>            Reporter: Andrew Purtell
>            Assignee: Andrew Purtell
>             Fix For: 0.96.0, 0.94.1
>
>         Attachments: 6377-0.94-remove-get-put-delete-histograms.patch, 6377-0.94.patch,
6377-trunk-remove-get-put-delete-histograms.patch, 6377-trunk-simple.patch, 6377.patch
>
>
> A client application (LoadTestTool) calls put() on HTables. Internally to the HBase client
those puts are batched into MultiActions. The total number of put operations shown in the
RegionServer's put metrics histogram never increases from 0 even though millions of such operations
are made. Needless to say the latency for those operations are not measured either. The value
of HBASE-5533 metrics are suspect given the client will batch put and delete ops like this.
> I had a fix in progress but HBASE-6284 messed it up. Before, MultiAction processing in
HRegionServer would distingush between puts and deletes and dispatch them separately. It was
easy to account for the time for them. Now both puts and deletes are submitted in batch together
as mutations.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message