[ 
https://issues.apache.org/jira/browse/HDFS-6481?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Ted Yu updated HDFS-6481:
-------------------------
    Description: 
Ian Brooks reported the following stack trace:

{code}
2014-06-03 13:05:03,915 WARN  [DataStreamer for file 
/user/hbase/WALs/############,16020,1401716790638/############%2C16020%2C1401716790638.1401796562200
 block BP-2121456822-10.143.38.149-1396953188241:blk_1074073683_332932] 
hdfs.DFSClient: DataStreamer Exception
org.apache.hadoop.ipc.RemoteException(java.lang.ArrayIndexOutOfBoundsException):
 0
        at 
org.apache.hadoop.hdfs.server.blockmanagement.DatanodeManager.getDatanodeStorageInfos(DatanodeManager.java:467)
        at 
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalDatanode(FSNamesystem.java:2779)
        at 
org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.getAdditionalDatanode(NameNodeRpcServer.java:594)
        at 
org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.getAdditionalDatanode(ClientNamenodeProtocolServerSideTranslatorPB.java:430)
        at 
org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
        at 
org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:585)
        at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:928)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1962)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1958)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:415)
        at 
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1548)
        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1956)

        at org.apache.hadoop.ipc.Client.call(Client.java:1347)
        at org.apache.hadoop.ipc.Client.call(Client.java:1300)
        at 
org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:206)
        at com.sun.proxy.$Proxy13.getAdditionalDatanode(Unknown Source)
        at 
org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getAdditionalDatanode(ClientNamenodeProtocolTranslatorPB.java:352)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at 
org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:186)
        at 
org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
        at com.sun.proxy.$Proxy14.getAdditionalDatanode(Unknown Source)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.apache.hadoop.hbase.fs.HFileSystem$1.invoke(HFileSystem.java:266)
        at com.sun.proxy.$Proxy15.getAdditionalDatanode(Unknown Source)
        at 
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.addDatanode2ExistingPipeline(DFSOutputStream.java:919)
        at 
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.addDatanode2ExistingPipeline(DFSOutputStream.java:919)
        at 
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.setupPipelineForAppendOrRecovery(DFSOutputStream.java:1031)
        at 
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.processDatanodeError(DFSOutputStream.java:823)
        at 
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:475)
2014-06-03 13:05:48,489 ERROR [RpcServer.handler=22,port=16020] wal.FSHLog: 
syncer encountered error, will retry. txid=211
org.apache.hadoop.ipc.RemoteException(java.lang.ArrayIndexOutOfBoundsException):
 0
        at 
org.apache.hadoop.hdfs.server.blockmanagement.DatanodeManager.getDatanodeStorageInfos(DatanodeManager.java:467)
        at 
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalDatanode(FSNamesystem.java:2779)
        at 
org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.getAdditionalDatanode(NameNodeRpcServer.java:594)
        at 
org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.getAdditionalDatanode(ClientNamenodeProtocolServerSideTranslatorPB.java:430)
        at 
org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
        at 
org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:585)
        at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:928)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1962)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1958)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:415)
        at 
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1548)
        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1956)

        at org.apache.hadoop.ipc.Client.call(Client.java:1347)
        at org.apache.hadoop.ipc.Client.call(Client.java:1300)
        at 
org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:206)
        at com.sun.proxy.$Proxy13.getAdditionalDatanode(Unknown Source)
        at 
org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getAdditionalDatanode(ClientNamenodeProtocolTranslatorPB.java:352)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at 
org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:186)
        at 
org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
        at com.sun.proxy.$Proxy14.getAdditionalDatanode(Unknown Source)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.apache.hadoop.hbase.fs.HFileSystem$1.invoke(HFileSystem.java:266)
        at com.sun.proxy.$Proxy15.getAdditionalDatanode(Unknown Source)
        at 
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.addDatanode2ExistingPipeline(DFSOutputStream.java:919)
        at 
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.setupPipelineForAppendOrRecovery(DFSOutputStream.java:1031)
        at 
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.processDatanodeError(DFSOutputStream.java:823)
        at 
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:475)
{code}
The loop is controlled by the length of datanodeID:

{code}
    for(int i = 0; i < datanodeID.length; i++) {
      final DatanodeDescriptor dd = getDatanode(datanodeID[i]);
      storages[i] = dd.getStorageInfo(storageIDs[i]);
    }
{code}
However, when the length of storageIDs is shorter than that of datanodeID, we 
would get ArrayIndexOutOfBoundsException.

  was:
Ian Brooks reported the following stack trace:
{code}
2014-06-03 13:05:03,915 WARN  [DataStreamer for file 
/user/hbase/WALs/############,16020,1401716790638/############%2C16020%2C1401716790638.1401796562200
 block BP-2121456822-10.143.38.149-1396953188241:blk_1074073683_332932] 
hdfs.DFSClient: DataStreamer Exception
org.apache.hadoop.ipc.RemoteException(java.lang.ArrayIndexOutOfBoundsException):
 0
        at 
org.apache.hadoop.hdfs.server.blockmanagement.DatanodeManager.getDatanodeStorageInfos(DatanodeManager.java:467)
        at 
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalDatanode(FSNamesystem.java:2779)
        at 
org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.getAdditionalDatanode(NameNodeRpcServer.java:594)
        at 
org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.getAdditionalDatanode(ClientNamenodeProtocolServerSideTranslatorPB.java:430)
        at 
org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
        at 
org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:585)
        at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:928)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1962)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1958)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:415)
        at 
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1548)
        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1956)

        at org.apache.hadoop.ipc.Client.call(Client.java:1347)
        at org.apache.hadoop.ipc.Client.call(Client.java:1300)
        at 
org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:206)
        at com.sun.proxy.$Proxy13.getAdditionalDatanode(Unknown Source)
        at 
org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getAdditionalDatanode(ClientNamenodeProtocolTranslatorPB.java:352)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at 
org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:186)
        at 
org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
        at com.sun.proxy.$Proxy14.getAdditionalDatanode(Unknown Source)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.apache.hadoop.hbase.fs.HFileSystem$1.invoke(HFileSystem.java:266)
        at com.sun.proxy.$Proxy15.getAdditionalDatanode(Unknown Source)
        at 
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.addDatanode2ExistingPipeline(DFSOutputStream.java:919)
        at 
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.addDatanode2ExistingPipeline(DFSOutputStream.java:919)
        at 
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.setupPipelineForAppendOrRecovery(DFSOutputStream.java:1031)
        at 
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.processDatanodeError(DFSOutputStream.java:823)
        at 
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:475)
2014-06-03 13:05:48,489 ERROR [RpcServer.handler=22,port=16020] wal.FSHLog: 
syncer encountered error, will retry. txid=211
org.apache.hadoop.ipc.RemoteException(java.lang.ArrayIndexOutOfBoundsException):
 0
        at 
org.apache.hadoop.hdfs.server.blockmanagement.DatanodeManager.getDatanodeStorageInfos(DatanodeManager.java:467)
        at 
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalDatanode(FSNamesystem.java:2779)
        at 
org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.getAdditionalDatanode(NameNodeRpcServer.java:594)
        at 
org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.getAdditionalDatanode(ClientNamenodeProtocolServerSideTranslatorPB.java:430)
        at 
org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
        at 
org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:585)
        at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:928)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1962)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1958)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:415)
        at 
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1548)
        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1956)

        at org.apache.hadoop.ipc.Client.call(Client.java:1347)
        at org.apache.hadoop.ipc.Client.call(Client.java:1300)
        at 
org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:206)
        at com.sun.proxy.$Proxy13.getAdditionalDatanode(Unknown Source)
        at 
org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getAdditionalDatanode(ClientNamenodeProtocolTranslatorPB.java:352)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at 
org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:186)
        at 
org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
        at com.sun.proxy.$Proxy14.getAdditionalDatanode(Unknown Source)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.apache.hadoop.hbase.fs.HFileSystem$1.invoke(HFileSystem.java:266)
        at com.sun.proxy.$Proxy15.getAdditionalDatanode(Unknown Source)
        at 
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.addDatanode2ExistingPipeline(DFSOutputStream.java:919)
        at 
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.setupPipelineForAppendOrRecovery(DFSOutputStream.java:1031)
        at 
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.processDatanodeError(DFSOutputStream.java:823)
        at 
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:475)
{code}
The loop is controlled by the length of datanodeID:

{code}
    for(int i = 0; i < datanodeID.length; i++) {
      final DatanodeDescriptor dd = getDatanode(datanodeID[i]);
      storages[i] = dd.getStorageInfo(storageIDs[i]);
    }
{code}
However, when the length of storageIDs is shorter than that of datanodeID, we 
would get ArrayIndexOutOfBoundsException.


> DatanodeManager#getDatanodeStorageInfos() should check the length of 
> storageIDs
> -------------------------------------------------------------------------------
>
>                 Key: HDFS-6481
>                 URL: https://issues.apache.org/jira/browse/HDFS-6481
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.3.0
>            Reporter: Ted Yu
>            Assignee: Ted Yu
>              Labels: BB2015-05-TBR
>         Attachments: hdfs-6481-v1.txt
>
>
> Ian Brooks reported the following stack trace:
> {code}
> 2014-06-03 13:05:03,915 WARN  [DataStreamer for file 
> /user/hbase/WALs/############,16020,1401716790638/############%2C16020%2C1401716790638.1401796562200
>  block BP-2121456822-10.143.38.149-1396953188241:blk_1074073683_332932] 
> hdfs.DFSClient: DataStreamer Exception
> org.apache.hadoop.ipc.RemoteException(java.lang.ArrayIndexOutOfBoundsException):
>  0
>         at 
> org.apache.hadoop.hdfs.server.blockmanagement.DatanodeManager.getDatanodeStorageInfos(DatanodeManager.java:467)
>         at 
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalDatanode(FSNamesystem.java:2779)
>         at 
> org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.getAdditionalDatanode(NameNodeRpcServer.java:594)
>         at 
> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.getAdditionalDatanode(ClientNamenodeProtocolServerSideTranslatorPB.java:430)
>         at 
> org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
>         at 
> org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:585)
>         at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:928)
>         at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1962)
>         at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1958)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at javax.security.auth.Subject.doAs(Subject.java:415)
>         at 
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1548)
>         at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1956)
>         at org.apache.hadoop.ipc.Client.call(Client.java:1347)
>         at org.apache.hadoop.ipc.Client.call(Client.java:1300)
>         at 
> org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:206)
>         at com.sun.proxy.$Proxy13.getAdditionalDatanode(Unknown Source)
>         at 
> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getAdditionalDatanode(ClientNamenodeProtocolTranslatorPB.java:352)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
>         at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:606)
>         at 
> org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:186)
>         at 
> org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
>         at com.sun.proxy.$Proxy14.getAdditionalDatanode(Unknown Source)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
>         at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:606)
>         at 
> org.apache.hadoop.hbase.fs.HFileSystem$1.invoke(HFileSystem.java:266)
>         at com.sun.proxy.$Proxy15.getAdditionalDatanode(Unknown Source)
>         at 
> org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.addDatanode2ExistingPipeline(DFSOutputStream.java:919)
>         at 
> org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.addDatanode2ExistingPipeline(DFSOutputStream.java:919)
>         at 
> org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.setupPipelineForAppendOrRecovery(DFSOutputStream.java:1031)
>         at 
> org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.processDatanodeError(DFSOutputStream.java:823)
>         at 
> org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:475)
> 2014-06-03 13:05:48,489 ERROR [RpcServer.handler=22,port=16020] wal.FSHLog: 
> syncer encountered error, will retry. txid=211
> org.apache.hadoop.ipc.RemoteException(java.lang.ArrayIndexOutOfBoundsException):
>  0
>         at 
> org.apache.hadoop.hdfs.server.blockmanagement.DatanodeManager.getDatanodeStorageInfos(DatanodeManager.java:467)
>         at 
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalDatanode(FSNamesystem.java:2779)
>         at 
> org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.getAdditionalDatanode(NameNodeRpcServer.java:594)
>         at 
> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.getAdditionalDatanode(ClientNamenodeProtocolServerSideTranslatorPB.java:430)
>         at 
> org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
>         at 
> org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:585)
>         at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:928)
>         at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1962)
>         at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1958)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at javax.security.auth.Subject.doAs(Subject.java:415)
>         at 
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1548)
>         at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1956)
>         at org.apache.hadoop.ipc.Client.call(Client.java:1347)
>         at org.apache.hadoop.ipc.Client.call(Client.java:1300)
>         at 
> org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:206)
>         at com.sun.proxy.$Proxy13.getAdditionalDatanode(Unknown Source)
>         at 
> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getAdditionalDatanode(ClientNamenodeProtocolTranslatorPB.java:352)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
>         at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:606)
>         at 
> org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:186)
>         at 
> org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
>         at com.sun.proxy.$Proxy14.getAdditionalDatanode(Unknown Source)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
>         at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:606)
>         at 
> org.apache.hadoop.hbase.fs.HFileSystem$1.invoke(HFileSystem.java:266)
>         at com.sun.proxy.$Proxy15.getAdditionalDatanode(Unknown Source)
>         at 
> org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.addDatanode2ExistingPipeline(DFSOutputStream.java:919)
>         at 
> org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.setupPipelineForAppendOrRecovery(DFSOutputStream.java:1031)
>         at 
> org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.processDatanodeError(DFSOutputStream.java:823)
>         at 
> org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:475)
> {code}
> The loop is controlled by the length of datanodeID:
> {code}
>     for(int i = 0; i < datanodeID.length; i++) {
>       final DatanodeDescriptor dd = getDatanode(datanodeID[i]);
>       storages[i] = dd.getStorageInfo(storageIDs[i]);
>     }
> {code}
> However, when the length of storageIDs is shorter than that of datanodeID, we 
> would get ArrayIndexOutOfBoundsException.



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