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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-625) Metrics support for cluster load history: emissions and graphs
Date Sat, 18 Oct 2008 01:06:44 GMT

     [ https://issues.apache.org/jira/browse/HBASE-625?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

stack updated HBASE-625:

    Attachment: metrics-3.patch

This patch adds master metrics and adds to the regionserver UI publishing of regionserver

I need to test more.

Also want to think if a better way of getting store level metrics than getting synchronization
lock on the online regions and then iterating over all stores and per store over synchronizing
on the regions store Collection.

> Metrics support for cluster load history: emissions and graphs
> --------------------------------------------------------------
>                 Key: HBASE-625
>                 URL: https://issues.apache.org/jira/browse/HBASE-625
>             Project: Hadoop HBase
>          Issue Type: Improvement
>            Reporter: stack
>            Assignee: stack
>            Priority: Critical
>         Attachments: metrics-2.patch, metrics-3.patch, metrics.patch
> hbase should write loadings on a period in a format that is amenable to tools like ganglia
(rrd).  Master can dump cluster loadings and averages.  Regionservers would report their own
loadings.  Should exploit the work up in hadoop for doing this kinda thing (GangliaContext)
where it makes sense.  Extra browning points if user can optionally enable display of graphs
in the hbase UI (JRobin).

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