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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-1030) Bit of polish on HBASE-1018
Date Fri, 28 Nov 2008 07:16:44 GMT

    [ https://issues.apache.org/jira/browse/HBASE-1030?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12651478#action_12651478

stack commented on HBASE-1030:

Wasn't INFO.  I think you had it DEBUG, but was still overwhelming (we need to do the work
to promote most of our DEBUG info up to INFO).  No worries.  Let me add a little polish --
informed by jgray commentary -- to your good work (master UI looks great with the new jvm
info, etc.)

> Bit of polish on HBASE-1018
> ---------------------------
>                 Key: HBASE-1030
>                 URL: https://issues.apache.org/jira/browse/HBASE-1030
>             Project: Hadoop HBase
>          Issue Type: Bug
>            Reporter: stack
>            Assignee: stack
>             Fix For: 0.19.0
> HBASE-1018 added new attributes to serverload and then in the master UI, outputted the
new detailed serverload.  Looking at this w/ jgray, if hundreds of regions per server, the
UI will blow out trying to list per region load.  Jgray suggested that region-level detail
instead should show over on the regionserver itself.  Will change the UI to do as he suggests
and just leave the new summary memory used, etc., showing in the load box over in master UI.
> Doing math, we at first were afraid that the new fatter HServerLoad instance would overload
the master when hundreds of regions but doing the math and counting the attributes that make
up the new HSL, it looks like about ~128 characters per server every 3 second heartbeat, not
too much.. so that should be fine.

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