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Posted to hdfs-dev@hadoop.apache.org by "Xiaoyu Yao (JIRA)" <ji...@apache.org> on 2018/10/16 23:57:00 UTC

[jira] [Created] (HDDS-673) Suppress "Key not found" exception log with stack trace in OM

Xiaoyu Yao created HDDS-673:
-------------------------------

             Summary: Suppress "Key not found" exception log with stack trace in OM
                 Key: HDDS-673
                 URL: https://issues.apache.org/jira/browse/HDDS-673
             Project: Hadoop Distributed Data Store
          Issue Type: Bug
            Reporter: Xiaoyu Yao
            Assignee: Xiaoyu Yao


We have observed too many KNF exception stack trace from OM logs. 

{code}
	2018-10-16 21:20:40,248 ERROR org.apache.hadoop.ozone.om.KeyManagerImpl: Get key failed for volume:volume2 bucket:bucket2 key:testo3/.hive-staging_hive_2018-10-16_21-20-29_158_7074026959914132025-1
	org.apache.hadoop.ozone.om.exceptions.OMException: Key not found
	        at org.apache.hadoop.ozone.om.KeyManagerImpl.lookupKey(KeyManagerImpl.java:368)
	        at org.apache.hadoop.ozone.om.OzoneManager.lookupKey(OzoneManager.java:881)
	        at org.apache.hadoop.ozone.protocolPB.OzoneManagerProtocolServerSideTranslatorPB.lookupKey(OzoneManagerProtocolServerSideTranslatorPB.java:400)
	        at org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos$OzoneManagerService$2.callBlockingMethod(OzoneManagerProtocolProtos.java:39299)
	        at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:524)
	        at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1025)
	        at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:876)
	        at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:822)
	        at java.security.AccessController.doPrivileged(Native Method)
	        at javax.security.auth.Subject.doAs(Subject.java:422)
	        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1730)
	        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2682)
{code}



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