Guo Ruijing created HDFS-6590:
---------------------------------
Summary: NullPointerException was generated when calling
getBlockLocalPathInfo
Key: HDFS-6590
URL: https://issues.apache.org/jira/browse/HDFS-6590
Project: Hadoop HDFS
Issue Type: Bug
Components: datanode
Affects Versions: 2.2.0
Reporter: Guo Ruijing
2014-06-11 20:34:40.240119, p43949, th140725562181728, ERROR cannot setup block
reader for Block: [block pool ID: BP-1901161041-172.28.1.251-1402542341112
block ID 1073741926_1102] on Datanode: sdw3(172.28.1.3).
RpcHelper.h: 74: HdfsIOException: Unexpected exception: when unwrap the rpc
remote exception ""java.lang.NullPointerException"",
java.lang.NullPointerException
at
org.apache.hadoop.hdfs.server.datanode.DataNode.getBlockLocalPathInfo(DataNode.java:1014)
at
org.apache.hadoop.hdfs.protocolPB.ClientDatanodeProtocolServerSideTranslatorPB.getBlockLocalPathInfo(ClientDatanodeProtocolServerSideTranslatorPB.java:112)
at
org.apache.hadoop.hdfs.protocol.proto.ClientDatanodeProtocolProtos$ClientDatanodeProtocolService$2.callBlockingMethod(ClientDatanodeProtocolProtos.java:6373)
at
org.apache.hadoop.ipc.ProtobufRpcEngine$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)
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