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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HBASE-3014) Change UnknownScannerException log level to WARN
Date Wed, 19 Mar 2014 23:51:44 GMT

     [ https://issues.apache.org/jira/browse/HBASE-3014?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

stack resolved HBASE-3014.

    Resolution: Cannot Reproduce

Marking as 'can not repro'. I think this issue is actually fixed after doing a survey.  No
where do we log this exception explicitly at the ERROR level (not any more at least).  It
is all INFO-level that I can see.

> Change UnknownScannerException log level to WARN
> ------------------------------------------------
>                 Key: HBASE-3014
>                 URL: https://issues.apache.org/jira/browse/HBASE-3014
>             Project: HBase
>          Issue Type: Improvement
>          Components: regionserver
>    Affects Versions: 0.20.6
>            Reporter: Ken Weiner
>            Priority: Trivial
>         Attachments: hbase-3014.patch
> I see a lot of UnknownScannerException messages in the log at ERROR level when I'm running
a MapReduce job that scans an HBase table.  These messages are logged under normal conditions,
and according to [~jdcryans], should probably be logged at a less severe log level like WARN.
> Example error message:
> {code}
> 2010-09-16 09:20:52,398 ERROR org.apache.hadoop.hbase.regionserver.HRegionServer: 
> org.apache.hadoop.hbase.UnknownScannerException: Name: -8711007779313115048
> 	at org.apache.hadoop.hbase.regionserver.HRegionServer.next(HRegionServer.java:1880)
> 	at sun.reflect.GeneratedMethodAccessor8.invoke(Unknown Source)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 	at java.lang.reflect.Method.invoke(Method.java:597)
> 	at org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:657)
> 	at org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:915)
> {code}
> Reference to the HBase users mailing list thread where this was originally discussed:
> http://markmail.org/thread/ttzbi6c7et6mrq6o
> This is a simple, change, so I didn't include a formal patch.  If one is required, I
will gladly create and attach one.

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