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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