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Posted to dev@hbase.apache.org by "Andrew Purtell (JIRA)" <ji...@apache.org> on 2010/04/06 00:10:27 UTC
[jira] Created: (HBASE-2410) spurious warnings from util.Sleeper
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
Priority: Blocker
Fix For: 0.20.4, 0.21.0
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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[jira] Resolved: (HBASE-2410) spurious warnings from util.Sleeper
Posted by "Jean-Daniel Cryans (JIRA)" <ji...@apache.org>.
[ 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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