hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Elliott Clark (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6377) HBASE-5533 metrics miss all operations submitted via MultiAction
Date Thu, 12 Jul 2012 22:09:34 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6377?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13413287#comment-13413287

Elliott Clark commented on HBASE-6377:

The trunk patch looks great.
The 0.94 patch, Will give some really weird numbers I think.  The histogram could be dominated
by the bulk insert operation.  Should that be switched to just a PersistantTimeVaryingRate?
Better to give less information, but for it to be accurate.
> 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: 0.94.2
>         Attachments: 6377-0.94.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


View raw message