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Posted to general@hadoop.apache.org by Syed Wasti <md...@hotmail.com> on 2010/07/22 20:24:36 UTC
TaskTracker Error
Hi,
I am seeing the below two errors consistently while running my map/reduce jobs. This does not stop my script, but throws an error on datanode and successfully completes the same task on a different datanode. The task could fail on any datanode, there are no blacklisted datanodes.
Any thoughts on why this is and how can this be resolved ?
This is the whole stack;
java.lang.Throwable: Child Error
at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:472)
Caused by: java.io.IOException: Task process exit with nonzero status of 134.
at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:459)
Second Error: This is all it gives.
Error: null
Thanks for the support.
Regards
Syed Wasti
Re: TaskTracker Error
Posted by Eric Sammer <es...@cloudera.com>.
Syed:
JDK u18 has significant known problems. You should definitely switch to
either 1.6.0_16 (tried and true) or _20. These are most commonly the patch
levels we see in production settings. Try that and see if the problem
persists.
On Thu, Jul 22, 2010 at 4:54 PM, Syed Wasti <md...@hotmail.com> wrote:
>
> Found this almost a year old discussion, on the same error code and it
> looks like a JVM crash.
> The discussion confirms the crash on JDK 14 and I am using JDK version 18.
>
>
>
> http://markmail.org/message/74yv7zyuq7ucm2z6
>
>
> From: mdwasti@hotmail.com
> To: pig-user@hadoop.apache.org
> Subject: TaskTracker Error
> Date: Thu, 22 Jul 2010 11:45:38 -0700
>
>
>
>
>
>
>
>
> Hi,
> I am seeing the below two errors consistently while running my script. This
> does not stop my script, but throws an error on datanode and successfully
> completes the same task on a different datanode. The task could fail on any
> datanode, there are no blacklisted datanodes.
> Any thoughts on why this is and how can this be resolved ?
>
> This is the whole stack;
> java.lang.Throwable: Child Error
> at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:472)
> Caused by: java.io.IOException: Task process exit with nonzero status of
> 134.
> at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:459)
>
> Second Error: This is all it gives.
> Error: null
>
> Third Error:
> Error: (class: org/apache/pig/builtin/PigStorage, method: setLocation
> signature: (Ljava/lang/String;Lorg/apache/hadoop/mapreduce/Job;)V)
>
>
> Thanks for the support.
> Regards
> Syed Wasti
>
>
--
Eric Sammer
twitter: esammer
data: www.cloudera.com
RE: TaskTracker Error
Posted by Syed Wasti <md...@hotmail.com>.
Found this almost a year old discussion, on the same error code and it looks like a JVM crash.
The discussion confirms the crash on JDK 14 and I am using JDK version 18.
http://markmail.org/message/74yv7zyuq7ucm2z6
From: mdwasti@hotmail.com
To: pig-user@hadoop.apache.org
Subject: TaskTracker Error
Date: Thu, 22 Jul 2010 11:45:38 -0700
Hi,
I am seeing the below two errors consistently while running my script. This does not stop my script, but throws an error on datanode and successfully completes the same task on a different datanode. The task could fail on any datanode, there are no blacklisted datanodes.
Any thoughts on why this is and how can this be resolved ?
This is the whole stack;
java.lang.Throwable: Child Error
at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:472)
Caused by: java.io.IOException: Task process exit with nonzero status of 134.
at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:459)
Second Error: This is all it gives.
Error: null
Third Error:
Error: (class: org/apache/pig/builtin/PigStorage, method: setLocation signature: (Ljava/lang/String;Lorg/apache/hadoop/mapreduce/Job;)V)
Thanks for the support.
Regards
Syed Wasti
RE: TaskTracker Error
Posted by Syed Wasti <md...@hotmail.com>.
Found this almost a year old discussion, on the same error code and it looks like a JVM crash.
The discussion confirms the crash on JDK 14 and I am using JDK version 18.
http://markmail.org/message/74yv7zyuq7ucm2z6
From: mdwasti@hotmail.com
To: pig-user@hadoop.apache.org
Subject: TaskTracker Error
Date: Thu, 22 Jul 2010 11:45:38 -0700
Hi,
I am seeing the below two errors consistently while running my script. This does not stop my script, but throws an error on datanode and successfully completes the same task on a different datanode. The task could fail on any datanode, there are no blacklisted datanodes.
Any thoughts on why this is and how can this be resolved ?
This is the whole stack;
java.lang.Throwable: Child Error
at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:472)
Caused by: java.io.IOException: Task process exit with nonzero status of 134.
at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:459)
Second Error: This is all it gives.
Error: null
Third Error:
Error: (class: org/apache/pig/builtin/PigStorage, method: setLocation signature: (Ljava/lang/String;Lorg/apache/hadoop/mapreduce/Job;)V)
Thanks for the support.
Regards
Syed Wasti
TaskTracker Error
Posted by Syed Wasti <md...@hotmail.com>.
Hi,
I am seeing the below two errors consistently while running my script. This does not stop my script, but throws an error on datanode and successfully completes the same task on a different datanode. The task could fail on any datanode, there are no blacklisted datanodes.
Any thoughts on why this is and how can this be resolved ?
This is the whole stack;
java.lang.Throwable: Child Error
at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:472)
Caused by: java.io.IOException: Task process exit with nonzero status of 134.
at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:459)
Second Error: This is all it gives.
Error: null
Third Error:
Error: (class: org/apache/pig/builtin/PigStorage, method: setLocation signature: (Ljava/lang/String;Lorg/apache/hadoop/mapreduce/Job;)V)
Thanks for the support.
Regards
Syed Wasti