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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Created: (HBASE-1030) Bit of polish on HBASE-1018
Date Wed, 26 Nov 2008 23:54:44 GMT
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
             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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