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From "Jeff Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-3755) Log the command of launching containers
Date Tue, 02 Jun 2015 05:27:18 GMT

     [ https://issues.apache.org/jira/browse/YARN-3755?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jeff Zhang updated YARN-3755:
-----------------------------
    Attachment: YARN-3755-1.patch

> Log the command of launching containers
> ---------------------------------------
>
>                 Key: YARN-3755
>                 URL: https://issues.apache.org/jira/browse/YARN-3755
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Jeff Zhang
>            Assignee: Jeff Zhang
>         Attachments: YARN-3755-1.patch
>
>
> In the resource manager log, yarn would log the command for launching AM, this is very
useful. But there's no such log in the NN log for launching containers. It would be difficult
to diagnose when containers fails to launch due to some issue in the commands. Although user
can look at the commands in the container launch script file, this is an internal things of
yarn, usually user don't know that. In user's perspective, they only know what commands they
specify when building yarn application. 
> {code}
> 2015-06-01 16:06:42,245 INFO org.apache.hadoop.yarn.server.resourcemanager.amlauncher.AMLauncher:
Command to launch container container_1433145984561_0001_01_000001 : $JAVA_HOME/bin/java -server
-Djava.net.preferIPv4Stack=true -Dhadoop.metrics.log.level=WARN  -Xmx1024m  -Dlog4j.configuratorClass=org.apache.tez.common.TezLog4jConfigurator
-Dlog4j.configuration=tez-container-log4j.properties -Dyarn.app.container.log.dir=<LOG_DIR>
-Dtez.root.logger=info,CLA -Dsun.nio.ch.bugLevel='' org.apache.tez.dag.app.DAGAppMaster 1><LOG_DIR>/stdout
2><LOG_DIR>/stderr
> {code}



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