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From: Harsh J <harsh@cloudera.com>
Date: Tue, 23 Apr 2013 12:12:12 +0530
Message-ID: 
 <CAOcnVr0m-SjisbxTzOuKdveArNiFL8EzvJ6z1POqnpfjYKGwSA@mail.gmail.com>
Subject: Re: How to open DEBUG level for YARN application master ?
To: "<user@hadoop.apache.org>" <user@hadoop.apache.org>
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To change the MR AM's default log level from INFO, set the job config:
"yarn.app.mapreduce.am.log.level" to DEBUG or whatever level you
prefer.

On Mon, Apr 22, 2013 at 6:21 PM, Nitzan Raanan
<Raanan.Nitzan@comverse.com> wrote:
> Hi
>
>
>
> How do I open the DEBUG level for YARN application master  process ?
>
> I couldn=92t find the relevant configuration the set (probably need to ad=
d
> them somewhere).
>
>
>
> ps -ef | grep java | grep yarn
>
> yarn     12585 29113  0 15:33 ?        00:00:00 /bin/bash -c
> /usr/java/jre1.6/bin/java -Dlog4j.configuration=3Dcontainer-log4j.propert=
ies
> -Dyarn.app.mapreduce.container.log.dir=3D/var/log/hadoop-yarn/containers/=
application_1366187149316_0049/container_1366187149316_0049_01_000001
> -Dyarn.app.mapreduce.container.log.filesize=3D0 -Dhadoop.root.logger=3DIN=
FO,CLA
> -Xmx1024m org.apache.hadoop.mapreduce.v2.app.MRAppMaster
> 1>/var/log/hadoop-yarn/containers/application_1366187149316_0049/containe=
r_1366187149316_0049_01_000001/stdout
> 2>/var/log/hadoop-yarn/containers/application_1366187149316_0049/containe=
r_1366187149316_0049_01_000001/stderr
>
>
>
>
>
> I=92m using following YARN version
>
> # rpm -qa | grep yarn
>
> hadoop-yarn-nodemanager-2.0.0+922-1.cdh4.2.0.p0.12.el5
>
> hadoop-yarn-nodemanager-2.0.0+88-1.cdh4.0.0.p0.26.el5
>
> hadoop-yarn-2.0.0+922-1.cdh4.2.0.p0.12.el5
>
>
>
> Thanks
>
> Raanan Nitzan,
>
> R&D Developer
>
> Comverse
>
>
>
>
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=94


--=20
Harsh J