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From "Owen O'Malley (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-6609) Deadlock in DFSClient#getBlockLocations even with the security disabled
Date Thu, 04 Mar 2010 00:51:27 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-6609?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Owen O'Malley updated HADOOP-6609:
----------------------------------

    Status: Open  (was: Patch Available)

> Deadlock in DFSClient#getBlockLocations even with the security disabled
> -----------------------------------------------------------------------
>
>                 Key: HADOOP-6609
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6609
>             Project: Hadoop Common
>          Issue Type: Bug
>            Reporter: Hairong Kuang
>            Assignee: Owen O'Malley
>         Attachments: c-6609.patch, c-6609.patch
>
>
> Here is the stack trace:
> "IPC Client (47) connection to XX" daemon
> prio=10 tid=0x00002aaae0369c00 nid=0x655b waiting for monitor entry [0x000000004181f000..0x000000004181fb80]
>    java.lang.Thread.State: BLOCKED (on object monitor)
> at org.apache.hadoop.io.UTF8.readChars(UTF8.java:210)
> - waiting to lock <0x00002aaab3eaee50> (a org.apache.hadoop.io.DataOutputBuffer)
> at org.apache.hadoop.io.UTF8.readString(UTF8.java:203)
> at org.apache.hadoop.io.ObjectWritable.readObject(ObjectWritable.java:179)
> at org.apache.hadoop.io.ObjectWritable.readFields(ObjectWritable.java:66)
> at org.apache.hadoop.ipc.Client$Connection.receiveResponse(Client.java:638)
> at org.apache.hadoop.ipc.Client$Connection.run(Client.java:573)
> "IPC Client (47) connection to /0.0.0.0:50030 from job_201002262308_0007"
> daemon prio=10 tid=0x00002aaae0272800 nid=0x6556 waiting for monitor entry [0x000000004131a000..0x000000004131ad00]
>    java.lang.Thread.State: BLOCKED (on object monitor)
> at org.apache.hadoop.io.UTF8.readChars(UTF8.java:210) 
> - waiting to lock <0x00002aaab3eaee50> (a org.apache.hadoop.io.DataOutputBuffer)
> at org.apache.hadoop.io.UTF8.readString(UTF8.java:203)
> at org.apache.hadoop.io.ObjectWritable.readObject(ObjectWritable.java:179)
> at org.apache.hadoop.io.ObjectWritable.readFields(ObjectWritable.java:66)
> at org.apache.hadoop.ipc.Client$Connection.receiveResponse(Client.java:638)
> at org.apache.hadoop.ipc.Client$Connection.run(Client.java:573)
> "main" prio=10 tid=0x0000000046c17800 nid=0x6544 in Object.wait() [0x0000000040207000..0x0000000040209ec0]
>    java.lang.Thread.State: WAITING (on object monitor)
> at java.lang.Object.wait(Native Method) 
> - waiting on <0x00002aaacee6bc38> (a org.apache.hadoop.ipc.Client$Call)
> at java.lang.Object.wait(Object.java:485)
> at org.apache.hadoop.ipc.Client.call(Client.java:854) - locked <0x00002aaacee6bc38>
(a org.apache.hadoop.ipc.Client$Call)
> at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:223)
> at $Proxy2.getBlockLocations(Unknown Source)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:82)
> at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:59)
> at $Proxy2.getBlockLocations(Unknown Source)
> at org.apache.hadoop.hdfs.DFSClient.callGetBlockLocations(DFSClient.java:333)
> at org.apache.hadoop.hdfs.DFSClient.access$2(DFSClient.java:330)
> at org.apache.hadoop.hdfs.DFSClient$DFSInputStream.getBlockAt(DFSClient.java:1606) 
> - locked <0x00002aaacecb8258> (a org.apache.hadoop.hdfs.DFSClient$DFSInputStream)
> at org.apache.hadoop.hdfs.DFSClient$DFSInputStream.blockSeekTo(DFSClient.java:1704)
> - locked <0x00002aaacecb8258> (a org.apache.hadoop.hdfs.DFSClient$DFSInputStream)
> at org.apache.hadoop.hdfs.DFSClient$DFSInputStream.read(DFSClient.java:1856)
> - locked <0x00002aaacecb8258> (a org.apache.hadoop.hdfs.DFSClient$DFSInputStream)
> at java.io.DataInputStream.readFully(DataInputStream.java:178)
> at org.apache.hadoop.io.DataOutputBuffer$Buffer.write(DataOutputBuffer.java:63)
> at org.apache.hadoop.io.DataOutputBuffer.write(DataOutputBuffer.java:101)
> at org.apache.hadoop.io.UTF8.readChars(UTF8.java:211)
> - locked <0x00002aaab3eaee50> (a org.apache.hadoop.io.DataOutputBuffer)
> at org.apache.hadoop.io.UTF8.readString(UTF8.java:203)
> at org.apache.hadoop.mapred.FileSplit.readFields(FileSplit.java:90)
> at org.apache.hadoop.io.serializer.WritableSerialization$WritableDeserializer.deserialize(WritableSerialization.java:67)
> at org.apache.hadoop.io.serializer.WritableSerialization$WritableDeserializer.deserialize(WritableSerialization.java:1)
> at org.apache.hadoop.mapred.MapTask.getSplitDetails(MapTask.java:341)
> at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:357)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:317)
> at org.apache.hadoop.mapred.Child$4.run(Child.java:211)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:396)
> at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:700)
> at org.apache.hadoop.mapred.Child.main(Child.java:205)

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