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Posted to dev@hbase.apache.org by "Jean-Daniel Cryans (JIRA)" <ji...@apache.org> on 2010/03/29 19:09:27 UTC
[jira] Created: (HBASE-2388) Give a very explicit message when we
figure a big GC pause
Give a very explicit message when we figure a big GC pause
----------------------------------------------------------
Key: HBASE-2388
URL: https://issues.apache.org/jira/browse/HBASE-2388
Project: Hadoop HBase
Issue Type: Improvement
Affects Versions: 0.20.3
Reporter: Jean-Daniel Cryans
Assignee: Jean-Daniel Cryans
Fix For: 0.20.4, 0.21.0
Our new users get confused when they see their region servers disappearing. If they are proactive enough, they even show us with some messages like:
{code}
2010-03-28 20:24:27,439 WARN org.apache.hadoop.hbase.util.Sleeper: We slept
79410ms, ten times longer than scheduled: 5000
2010-03-28 20:24:27,439 WARN org.apache.hadoop.hbase.util.Sleeper: We slept
78781ms, ten times longer than scheduled: 3000
{code}
For us it's very obvious what just happened, for our users not at all. I think we could easily just create a very comprehensive entry about this issue in the troubleshooting page and put a link directly into the error message.
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[jira] Resolved: (HBASE-2388) Give a very explicit message when we
figure a big GC pause
Posted by "Jean-Daniel Cryans (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-2388?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jean-Daniel Cryans resolved HBASE-2388.
---------------------------------------
Resolution: Fixed
Hadoop Flags: [Reviewed]
Committed to branch and trunk.
> Give a very explicit message when we figure a big GC pause
> ----------------------------------------------------------
>
> Key: HBASE-2388
> URL: https://issues.apache.org/jira/browse/HBASE-2388
> Project: Hadoop HBase
> Issue Type: Improvement
> Affects Versions: 0.20.3
> Reporter: Jean-Daniel Cryans
> Assignee: Jean-Daniel Cryans
> Fix For: 0.20.4, 0.21.0
>
> Attachments: HBASE-2388.patch
>
>
> Our new users get confused when they see their region servers disappearing. If they are proactive enough, they even show us with some messages like:
> {code}
> 2010-03-28 20:24:27,439 WARN org.apache.hadoop.hbase.util.Sleeper: We slept
> 79410ms, ten times longer than scheduled: 5000
> 2010-03-28 20:24:27,439 WARN org.apache.hadoop.hbase.util.Sleeper: We slept
> 78781ms, ten times longer than scheduled: 3000
> {code}
> For us it's very obvious what just happened, for our users not at all. I think we could easily just create a very comprehensive entry about this issue in the troubleshooting page and put a link directly into the error message.
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