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From "Jean-Daniel Cryans (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HBASE-2410) spurious warnings from util.Sleeper
Date Mon, 05 Apr 2010 23:42:27 GMT

     [ https://issues.apache.org/jira/browse/HBASE-2410?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jean-Daniel Cryans resolved HBASE-2410.
---------------------------------------

      Resolution: Fixed
    Hadoop Flags: [Reviewed]

I committed to branch and trunk a fix that checks for a delta of 10 seconds between the time
slept and the period.

> spurious warnings from util.Sleeper
> -----------------------------------
>
>                 Key: HBASE-2410
>                 URL: https://issues.apache.org/jira/browse/HBASE-2410
>             Project: Hadoop HBase
>          Issue Type: Bug
>            Reporter: Andrew Purtell
>            Assignee: Jean-Daniel Cryans
>            Priority: Blocker
>             Fix For: 0.20.4, 0.21.0
>
>         Attachments: HBASE-2410.patch
>
>
> Many of this in the logs
> {noformat}
> WARN util.Sleeper: We slept 59993ms, this is likely due to a long garbage collecting
pause and it's usually bad, see http://wiki.apache.org/hadoop/Hbase/Troubleshooting#A9
> {noformat}
> except this is the MetaScanner and the sleeper has a period of 60000ms. I have one of
30000ms in Stargate which is doing the same thing now.
> I see the intent but these spurious warnings defeat the intent here. Marked as blocker
as this will cause no end of users writing in on the list. Should be a test of the actual
sleep time against the configured interval, not a constant.

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