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Posted to issues@hbase.apache.org by "Jonathan Gray (JIRA)" <ji...@apache.org> on 2010/10/31 21:00:23 UTC

[jira] Updated: (HBASE-3180) Review periodic master logging, especially ServerManager once a minute

     [ https://issues.apache.org/jira/browse/HBASE-3180?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jonathan Gray updated HBASE-3180:
---------------------------------

    Attachment: HBASE-3180-v1.patch

Changes:  ServerManager log increased to 5 minutes, log at DEBUG in CatalogJanitor if cleaned==0

> Review periodic master logging, especially ServerManager once a minute
> ----------------------------------------------------------------------
>
>                 Key: HBASE-3180
>                 URL: https://issues.apache.org/jira/browse/HBASE-3180
>             Project: HBase
>          Issue Type: Improvement
>          Components: master
>    Affects Versions: 0.90.0
>            Reporter: Jonathan Gray
>            Assignee: Jonathan Gray
>             Fix For: 0.90.0
>
>         Attachments: HBASE-3180-v1.patch
>
>
> Not including HBASE-3179, the master logs of a steady-state cluster are something like:
> {noformat}
> 2010-10-30 10:03:59,876 INFO org.apache.hadoop.hbase.master.ServerManager: regionservers=86, averageload=28.05
> 2010-10-30 10:04:59,886 INFO org.apache.hadoop.hbase.master.ServerManager: regionservers=86, averageload=28.05
> 2010-10-30 10:05:59,894 INFO org.apache.hadoop.hbase.master.ServerManager: regionservers=86, averageload=28.05
> 2010-10-30 10:06:59,904 INFO org.apache.hadoop.hbase.master.ServerManager: regionservers=86, averageload=28.05
> 2010-10-30 10:07:59,914 INFO org.apache.hadoop.hbase.master.ServerManager: regionservers=86, averageload=28.05
> 2010-10-30 10:08:05,941 DEBUG org.apache.hadoop.hbase.master.LoadBalancer: Skipping load balancing.  servers=86 regions=2401 average=27.918604 mostloaded=28 leastloaded=28
> 2010-10-30 10:08:07,128 INFO org.apache.hadoop.hbase.master.CatalogJanitor: Scanned 2399 catalog row(s) and gc'd 0 unreferenced parent region(s)
> {noformat}
> Let's review these and see if there's anything we want to take out or add.

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