Zbigniew Kostrzewa created HDFS-13128: -----------------------------------------
Summary: HDFS balancer in single node cluster fails with "Another Balancer is running.." Key: HDFS-13128 URL: https://issues.apache.org/jira/browse/HDFS-13128 Project: Hadoop HDFS Issue Type: Bug Components: balancer & mover, hdfs Affects Versions: 2.7.3 Reporter: Zbigniew Kostrzewa In a single node "cluster", HDFS balancer fails with: {noformat} Time Stamp Iteration# Bytes Already Moved Bytes Left To Move Bytes Being Moved java.io.IOException: Another Balancer is running.. Exiting ... {noformat} and in Name Node logs there is: {noformat} 2018-02-09 07:23:21,671 INFO org.apache.hadoop.hdfs.StateChange: BLOCK* allocate blk_1073741865_1041{UCState=UNDER_CONSTRUCTION, truncateBlock=null, primaryNodeIndex=-1, replicas=[ReplicaUC[[ DISK]DS-dae233d3-5c71-498e-9a8b-669bff3fccdf:NORMAL:10.9.4.184:30010|RBW]]} for /system/balancer.id 2018-02-09 07:23:21,739 INFO org.apache.hadoop.hdfs.StateChange: BLOCK* fsync: /system/balancer.id for DFSClient_NONMAPREDUCE_-1126407107_1 2018-02-09 07:23:21,758 WARN org.apache.hadoop.hdfs.StateChange: DIR* NameSystem.append: Failed to APPEND_FILE /system/balancer.id for DFSClient_NONMAPREDUCE_1275100437_1 on 10.9.4.184 becaus e this file lease is currently owned by DFSClient_NONMAPREDUCE_-1126407107_1 on 10.9.4.184 2018-02-09 07:23:21,758 INFO org.apache.hadoop.ipc.Server: IPC Server handler 1 on 8020, call org.apache.hadoop.hdfs.protocol.ClientProtocol.append from 10.9.4.184:49781 Call#12 Retry#0: org. apache.hadoop.hdfs.protocol.AlreadyBeingCreatedException: Failed to APPEND_FILE /system/balancer.id for DFSClient_NONMAPREDUCE_1275100437_1 on 10.9.4.184 because this file lease is currently owned by DFSClient_NONMAPREDUCE_-1126407107_1 on 10.9.4.184 2018-02-09 07:23:21,773 INFO BlockStateChange: BLOCK* addStoredBlock: blockMap updated: 10.9.4.184:30010 is added to blk_1073741865_1041{UCState=UNDER_CONSTRUCTION, truncateBlock=null, primar yNodeIndex=-1, replicas=[ReplicaUC[[DISK]DS-dae233d3-5c71-498e-9a8b-669bff3fccdf:NORMAL:10.9.4.184:30010|RBW]]} size 15 2018-02-09 07:23:21,776 INFO org.apache.hadoop.hdfs.StateChange: DIR* completeFile: /system/balancer.id is closed by DFSClient_NONMAPREDUCE_-1126407107_1{noformat} -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-dev-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-dev-h...@hadoop.apache.org