Details
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Improvement
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Status: Closed
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Trivial
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Resolution: Cannot Reproduce
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0.20.6
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None
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None
Description
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 Jean-Daniel Cryans, should probably be logged at a less severe log level like WARN.
Example error message:
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)
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.