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From "Sergey Shelukhin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-8178) IPCUtil produces a LOT of WARN log spew
Date Sat, 23 Mar 2013 03:01:16 GMT

    [ https://issues.apache.org/jira/browse/HBASE-8178?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13611536#comment-13611536
] 

Sergey Shelukhin commented on HBASE-8178:
-----------------------------------------

+1
                
> IPCUtil produces a LOT of WARN log spew
> ---------------------------------------
>
>                 Key: HBASE-8178
>                 URL: https://issues.apache.org/jira/browse/HBASE-8178
>             Project: HBase
>          Issue Type: Bug
>          Components: IPC/RPC
>            Reporter: Sergey Shelukhin
>            Assignee: stack
>            Priority: Critical
>         Attachments: 8178.txt
>
>
> I was running some integration tests on trunk and noticed that IT log (which uses LoadTestTool
with 16k records) is overflowing with this:
> {code}
> 13/03/21 23:02:15 WARN ipc.IPCUtil: Buffer grew from 16384 to 16971
> 13/03/21 23:02:15 WARN ipc.IPCUtil: Buffer grew from 16384 to 18906
> 13/03/21 23:02:15 WARN ipc.IPCUtil: Buffer grew from 16384 to 18486
> 13/03/21 23:02:15 WARN ipc.IPCUtil: Buffer grew from 16384 to 22896
> 13/03/21 23:02:15 WARN ipc.IPCUtil: Buffer grew from 16384 to 22253
> {code}
> So much in fact, that
> {code}
> reznor-mbp:stripe sergey$ grep -a -c "Buffer grew" it.log 
> 2769498
> reznor-mbp:stripe sergey$ grep -a -v "Buffer grew" it.log > it2.log
> reznor-mbp:stripe sergey$ ll it*
> -rw-r--r--  1 sergey  staff  189440541 Mar 22 11:22 it.log
> -rw-r--r--  1 sergey  staff    1114677 Mar 22 11:33 it2.log
> {code}
> There are two questions.
> 1) Should this log be TRACE level, or there at all? it happens a lot.
> 2) Is this condition normal? I am assuming the log level was set to WARN for a reason
:)

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