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