hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Jean-Daniel Cryans (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HBASE-2883) Req/sec in web UIs are way off when regions are moving
Date Tue, 07 May 2013 22:49:15 GMT

     [ https://issues.apache.org/jira/browse/HBASE-2883?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Jean-Daniel Cryans resolved HBASE-2883.

    Resolution: Invalid

Old issue, let's open a new one if someone still sees this as a problem.
> Req/sec in web UIs are way off when regions are moving
> ------------------------------------------------------
>                 Key: HBASE-2883
>                 URL: https://issues.apache.org/jira/browse/HBASE-2883
>             Project: HBase
>          Issue Type: Bug
>          Components: metrics
>    Affects Versions: 0.20.5, 0.89.20100621
>            Reporter: Jean-Daniel Cryans
>            Priority: Minor
> Now that the region servers can heartbeat back to the master as soon as they have a message
(region open, close, etc), they also recompute their metrics. I see two problems:
>  - The metrics are recomputed way too often, and by the looks of that code it seems quite
>  - Our UIs are expecting that the value returned by the metrics computation is per second,
but when regions are moving a RS can ping back a few times within a single second. This gives
a very wrong view of the load.
> I think it's time we move metrics computation in it's own separate thread.

This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira

View raw message