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Message-ID: <15920262.264291284769474004.JavaMail.jira@thor>
Date: Fri, 17 Sep 2010 20:24:34 -0400 (EDT)
From: "Ken Weiner (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
Subject: [jira] Created: (HBASE-3014) Change UnknownScannerException log
 level to WARN
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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


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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