NotServingRegionException shouldn't log a stack trace
-----------------------------------------------------

                 Key: HBASE-2830
                 URL: https://issues.apache.org/jira/browse/HBASE-2830
             Project: HBase
          Issue Type: Improvement
          Components: regionserver
            Reporter: Patrick Angeles


NotServingRegionException is not really an error condition, and so the logged 
stacktrace (see below) is unnecessary information that could be trimmed from 
the logs.

2010-07-12 14:41:44,239 INFO org.apache.hadoop.ipc.HBaseServer: IPC Server 
handler 16 on 60020, call 
multiPut(org.apache.hadoop.hbase.client.multi...@1f920f2) from 
10.40.0.43:32905: error: org.apache.hadoop.hbase.NotServingRegionException: 
person,0030706293:PA,1278958944701.e4097c109d5a8265198890b4bfa92f3c. is closed
org.apache.hadoop.hbase.NotServingRegionException: 
person,0030706293:PA,1278958944701.e4097c109d5a8265198890b4bfa92f3c. is closed
        at 
org.apache.hadoop.hbase.regionserver.HRegion.internalObtainRowLock(HRegion.java:2122)
        at 
org.apache.hadoop.hbase.regionserver.HRegion.getLock(HRegion.java:2211)
        at 
org.apache.hadoop.hbase.regionserver.HRegion.doMiniBatchPut(HRegion.java:1493)
        at org.apache.hadoop.hbase.regionserver.HRegion.put(HRegion.java:1447)
        at 
org.apache.hadoop.hbase.regionserver.HRegionServer.put(HRegionServer.java:1703)
        at 
org.apache.hadoop.hbase.regionserver.HRegionServer.multiPut(HRegionServer.java:2361)
        at sun.reflect.GeneratedMethodAccessor13.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$Server.call(HBaseRPC.java:576)
        at 
org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:919)
2010-07-12 14:41:44,376 DEBUG org.apache.hadoop.hbase.regionserver.HRegion: 
Creating region 
person,0030706293:PA,1278960103839.cfff1e6418e52aca6b766bc56baa3f53.
2010-07-12 14:41:44,378 DEBUG org.apache.hadoop.hbase.regionserver.HRegion: 
Creating region 
person,0030896133:PA,1278960103839.427ac16dfbf3f747ff938de598a9a356.


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