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From John Lilley <john.lil...@redpoint.net>
Subject RE: Getting error message from AM container launch
Date Thu, 27 Mar 2014 02:34:07 GMT
No, the “nice” is internal to Hadoop, apparently to make sure that the Hadoop infrastructure
processes can’t be starved by the applications.  Actually we figured out what was going
on.  There was a very large environment variable being set for the AM, and it exceeded the
132KB or so allowed for the total command-line-argument + environment space.

Cheers,
John

From: Azuryy [mailto:azuryyyu@gmail.com]
Sent: Wednesday, March 26, 2014 5:13 PM
To: user@hadoop.apache.org
Subject: Re: Getting error message from AM container launch

You used 'nice' in your app?


Sent from my iPhone5s

On 2014年3月27日, at 6:55, John Lilley <john.lilley@redpoint.net<mailto:john.lilley@redpoint.net>>
wrote:
On further examination they appear to be 369 characters long.  I’ve read about similar issues
showing when the environment exceeds 132KB, but we aren’t putting anything significant in
the environment.
John


From: John Lilley [mailto:john.lilley@redpoint.net]
Sent: Wednesday, March 26, 2014 4:41 PM
To: user@hadoop.apache.org<mailto:user@hadoop.apache.org>
Subject: RE: Getting error message from AM container launch

We do have a fairly long container command-line.  Not huge, around 200 characters.
John

From: John Lilley [mailto:john.lilley@redpoint.net]
Sent: Wednesday, March 26, 2014 4:38 PM
To: user@hadoop.apache.org<mailto:user@hadoop.apache.org>
Subject: Getting error message from AM container launch

Running a non-MapReduce YARN application, one of the containers launched by the AM is failing
with an error message I’ve never seen.  Any ideas?  I’m not sure who exactly is running
“nice” or why its argument list would be too long.
Thanks
john

Container for appattempt_1395755163053_0030_000001 exited with  exitCode: 0 due to: Exception
from container-launch:
java.io.IOException: Cannot run program ""nice"" (in directory ""/ephemeral02/hadoop/yarn/local/usercache/SYSTEM/appcache/application_1395755163053_0030/container_1395755163053_0030_01_000001""):
java.io.IOException: error=7, Argument list too long
                at java.lang.ProcessBuilder.start(ProcessBuilder.java:460)
                at org.apache.hadoop.util.Shell.runCommand(Shell.java:407)
                at org.apache.hadoop.util.Shell.run(Shell.java:379)
                at org.apache.hadoop.util.Shell$ShellCommandExecutor.execute(Shell.java:589)
                at org.apache.hadoop.yarn.server.nodemanager.DefaultContainerExecutor.launchContainer(DefaultContainerExecutor.java:195)
                at org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher.ContainerLaunch.call(ContainerLaunch.java:283)
                at org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher.ContainerLaunch.call(ContainerLaunch.java:79)
                at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
                at java.util.concurrent.FutureTask.run(FutureTask.java:138)
                at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
                at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
                at java.lang.Thread.run(Thread.java:662)
Caused by: java.io.IOException: java.io.IOException: error=7, Argument list too long
                at java.lang.UNIXProcess.<init>(UNIXProcess.java:148)
                at java.lang.ProcessImpl.start(ProcessImpl.java:65)
                at java.lang.ProcessBuilder.start(ProcessBuilder.java:453)
                ... 11 more

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