Maybe the user 'test' has no privilege of write operation. You can refer the ERROR log like: org.apache.hadoop.security.UserGroupInformation: PriviledgedActionException as:test (auth:SIMPLE)
2014-07-15 2:07 GMT+08:00 Bogdan Raducanu <lrd...@gmail.com>: > I'm getting this error while writing many files. > org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementPolicy: Not > able to place enough replicas, still in need of 4 to reach 4 > > I've set logging to DEBUG but still there is no reason printed. There > should've been a reason after this line but instead there's just an empty > line. > Has anyone seen something like this before? It is seen on a 4 node cluster > running hadoop 2.2 > > > org.apache.hadoop.hdfs.StateChange: *DIR* NameNode.create: file /file_1002 > for DFSClient_NONMAPREDUCE_839626346_1 at 192.168.180.1 > org.apache.hadoop.hdfs.StateChange: DIR* NameSystem.startFile: > src=/file_1002, holder=DFSClient_NONMAPREDUCE_839626346_1, > clientMachine=192.168.180.1, createParent=true, replication=4, > createFlag=[CREATE, OVERWRITE] > org.apache.hadoop.hdfs.StateChange: DIR* addFile: /file_1002 is added > org.apache.hadoop.hdfs.StateChange: DIR* NameSystem.startFile: add > /file_1002 to namespace for DFSClient_NONMAPREDUCE_839 > << ... many other operations ... >> > 8 seconds later: > org.apache.hadoop.hdfs.StateChange: *BLOCK* NameNode.addBlock: file > /file_1002 fileId=189252 for DFSClient_NONMAPREDUCE_839626346_1 > org.apache.hadoop.hdfs.StateChange: BLOCK* NameSystem.getAdditionalBlock: > file /file_1002 for DFSClient_NONMAPREDUCE_839626346_1 > org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementPolicy: Not > able to place enough replicas, still in need of 4 to reach 4 > << EMPTY LINE >> > org.apache.hadoop.security.UserGroupInformation: > PriviledgedActionException as:test (auth:SIMPLE) cause:java.io.IOException: > File /file_1002 could only be replicated to 0 nodes instead of > minReplication (=1). There are 4 datanode(s) running and no node(s) are > excluded in this operation. > org.apache.hadoop.ipc.Server: IPC Server handler 9 on 8020, call > org.apache.hadoop.hdfs.protocol.ClientProtocol.addBlock from > 192.168.180.1:49592 Call#1321 Retry#0: error: java.io.IOException: File > /file_1002 could only be replicated to 0 nodes instead of minReplication > (=1). There are 4 datanode(s) running and no node(s) are excluded in this > operation. > java.io.IOException: File /file_1002 could only be replicated to 0 nodes > instead of minReplication (=1). There are 4 datanode(s) running and no > node(s) are excluded in this operation. > at > org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.chooseTarget(BlockManager.java:1384) > at > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:2477) > at > org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.addBlock(NameNodeRpcServer.java:555) > at > org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.addBlock(ClientNamenodeProtocolServerSideTranslatorPB.java:387) > at > org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java:59582) > at > org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:585) > at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:928) > at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2048) > at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2044) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:415) > at > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1491) > at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2042):0 > >
