Discussion:
HDFS File System
Ronnie Leong
2018-11-09 02:19:37 UTC
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Good day,


I am running the hadoop common library (version 3.1.0) in cloudera docker/vm, while copying the local file to hdfs file system. I am encounter this stacktrace below :


at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1073)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2226)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2222)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1917)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2220)
2018-11-09 01:46:27,573 INFO org.apache.hadoop.hdfs.StateChange: BLOCK* allocateBlock: /datahub/staging/temp_Data_Hub_1_99.txt. BP-1388946040-10.0.0.8-1508802350597 blk_1073743803_2981{blockUCState=UNDER_
CONSTRUCTION, primaryNodeIndex=-1, replicas=[ReplicaUnderConstruction[[DISK]DS-cbee6448-2551-4251-b79b-2980ec42eb6d:NORMAL:172.17.0.2:50010|RBW]]}
2018-11-09 01:46:30,645 INFO org.apache.hadoop.hdfs.server.namenode.FSEditLog: Number of transactions: 233 Total time for transactions(ms): 24 Number of transactions batched in Syncs: 22 Number of syncs: 211 SyncTimes(ms): 106
2018-11-09 01:46:30,650 INFO org.apache.hadoop.hdfs.StateChange: DIR* completeFile: /user/spark/applicationHistory/.88b38315-c4e5-4a4d-a0fa-f2ccf862b309 is closed by DFSClient_NONMAPREDUCE_1462663536_1
2018-11-09 01:46:30,688 WARN org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementPolicy: Failed to place enough replicas, still in need of 1 to reach 1 (unavailableStorages=[], storagePolicy=BlockStoragePolicy{HOT:7, storageTypes=[DISK], creationFallbacks=[], replicationFallbacks=[ARCHIVE]}, newBlock=true) For more information, please enable DEBUG log level on org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementPolicy and org.apache.hadoop.net.NetworkTopology
2018-11-09 01:46:30,688 WARN org.apache.hadoop.hdfs.protocol.BlockStoragePolicy: Failed to place enough replicas: expected size is 1 but only 0 storage types can be selected (replication=1, selected=[], unavailable=[DISK], removed=[DISK], policy=BlockStoragePolicy{HOT:7, storageTypes=[DISK], creationFallbacks=[], replicationFallbacks=[ARCHIVE]})
2018-11-09 01:46:30,689 WARN org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementPolicy: Failed to place enough replicas, still in need of 1 to reach 1 (unavailableStorages=[DISK], storagePolicy=BlockStoragePolicy{HOT:7, storageTypes=[DISK], creationFallbacks=[], replicationFallbacks=[ARCHIVE]}, newBlock=true) All required storage types are unavailable: unavailableStorages=[DISK], storagePolicy=BlockStoragePolicy{HOT:7, storageTypes=[DISK], creationFallbacks=[], replicationFallbacks=[ARCHIVE]}
2018-11-09 01:46:30,689 WARN org.apache.hadoop.security.UserGroupInformation: PriviledgedActionException as:ronnie (auth:SIMPLE) cause:java.io.IOException: File /datahub/staging/temp_Data_Hub_1_99.txt could only be replicated to 0 nodes instead of minReplication (=1). There are 1 datanode(s) running and 1 node(s) are excluded in this operation.
2018-11-09 01:46:30,689 INFO org.apache.hadoop.ipc.Server: IPC Server handler 1 on 8020, call org.apache.hadoop.hdfs.protocol.ClientProtocol.addBlock from 10.60.50.201:48616 Call#4 Retry#0
java.io.IOException: File /datahub/staging/temp_Data_Hub_1_99.txt could only be replicated to 0 nodes instead of minReplication (=1). There are 1 datanode(s) running and 1 node(s) are excluded in this operation.
at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.chooseTarget4NewBlock(BlockManager.java:1720)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:3440)
at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.addBlock(NameNodeRpcServer.java:686)
at org.apache.hadoop.hdfs.server.namenode.AuthorizationProviderProxyClientProtocol.addBlock(AuthorizationProviderProxyClientProtocol.java:217)
at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.addBlock(ClientNamenodeProtocolServerSideTranslatorPB.java:506)
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$1.run(Server.java:2226)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2222)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1917)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2220)




I have checked my data node and name node is running good in cloudera machine, do you have any idea on this ?


Thanks,

Ronnie

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