Henrique Barros created HDFS-13833: -------------------------------------- Summary: Failed to choose from local rack (location = /default); the second replica is not found, retry choosing ramdomly Key: HDFS-13833 URL: https://issues.apache.org/jira/browse/HDFS-13833 Project: Hadoop HDFS Issue Type: Bug Reporter: Henrique Barros
I'm having a random problem with blocks replication with Hadoop 2.6.0-cdh5.15.0 With Cloudera CDH-5.15.0-1.cdh5.15.0.p0.21 In my case we are getting this error very randomly (after some hours) and with only one Datanode (for now, we are trying this cloudera cluster for a POC) Here is the Log. {code:java} Choosing random from 1 available nodes on node /default, scope=/default, excludedScope=null, excludeNodes=[] 2:38:20.527 PM DEBUG NetworkTopology Choosing random from 0 available nodes on node /default, scope=/default, excludedScope=null, excludeNodes=[192.168.220.53:50010] 2:38:20.527 PM DEBUG NetworkTopology chooseRandom returning null 2:38:20.527 PM DEBUG BlockPlacementPolicy [ Node /default/192.168.220.53:50010 [ Datanode 192.168.220.53:50010 is not chosen since the node is too busy (load: 8 > 0.0). 2:38:20.527 PM DEBUG NetworkTopology chooseRandom returning 192.168.220.53:50010 2:38:20.527 PM INFO BlockPlacementPolicy Not enough replicas was chosen. Reason:{NODE_TOO_BUSY=1} 2:38:20.527 PM DEBUG StateChange closeFile: /mobi.me/development/apps/flink/checkpoints/a5a6806866c1640660924ea1453cbe34/chk-2118/eef8bff6-75a9-43c1-ae93-4b1a9ca31ad9 with 1 blocks is persisted to the file system 2:38:20.527 PM DEBUG StateChange *BLOCK* NameNode.addBlock: file /mobi.me/development/apps/flink/checkpoints/a5a6806866c1640660924ea1453cbe34/chk-2118/1cfe900d-6f45-4b55-baaa-73c02ace2660 fileId=129628869 for DFSClient_NONMAPREDUCE_467616914_65 2:38:20.527 PM DEBUG BlockPlacementPolicy Failed to choose from local rack (location = /default); the second replica is not found, retry choosing ramdomly org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementPolicy$NotEnoughReplicasException: at org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementPolicyDefault.chooseRandom(BlockPlacementPolicyDefault.java:784) at org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementPolicyDefault.chooseRandom(BlockPlacementPolicyDefault.java:694) at org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementPolicyDefault.chooseLocalRack(BlockPlacementPolicyDefault.java:601) at org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementPolicyDefault.chooseLocalStorage(BlockPlacementPolicyDefault.java:561) at org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementPolicyDefault.chooseTargetInOrder(BlockPlacementPolicyDefault.java:464) at org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementPolicyDefault.chooseTarget(BlockPlacementPolicyDefault.java:395) at org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementPolicyDefault.chooseTarget(BlockPlacementPolicyDefault.java:270) at org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementPolicyDefault.chooseTarget(BlockPlacementPolicyDefault.java:142) at org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementPolicyDefault.chooseTarget(BlockPlacementPolicyDefault.java:158) at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.chooseTarget4NewBlock(BlockManager.java:1715) at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:3505) at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.addBlock(NameNodeRpcServer.java:694) at org.apache.hadoop.hdfs.server.namenode.AuthorizationProviderProxyClientProtocol.addBlock(AuthorizationProviderProxyClientProtocol.java:219) at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.addBlock(ClientNamenodeProtocolServerSideTranslatorPB.java:507) at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java) at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:617) at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1073) at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2281) at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2277) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1920) at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2275) {code} This part makes no sense at all: {code:java} load: 8 > 0.0{code} -- 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