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https://issues.apache.org/jira/browse/YARN-307?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13542616#comment-13542616
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Lohit Vijayarenu commented on YARN-307:
---------------------------------------
For example I am seeing container launch failure without any useful message
like this.
{noformat}
2013-01-03 00:33:49,045 DEBUG
org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl: Node's
health-status : true,
2013-01-03 00:33:49,090 WARN
org.apache.hadoop.yarn.server.nodemanager.DefaultContainerExecutor: Exit code
from task is : 1
2013-01-03 00:33:49,090 INFO
org.apache.hadoop.yarn.server.nodemanager.ContainerExecutor:
{noformat}
Script seems to exit with exit code of 1. To debug further, I wanted to see the
command being execute, but in the logs I can see only the line as shown below
{noformat}
2013-01-03 00:33:46,591 INFO
org.apache.hadoop.yarn.server.nodemanager.DefaultContainerExecutor:
launchContainer: [bash,
/data/disk2/yarn/local/usercache/hadoop/appcache/application_1357147147433_0011/container_1357147147433_0011_01_000001/default_container_executor.sh]
{noformat}
Once task fails, this directory is cleaned up. There seems to be no easy way to
find out why container is failing. It would be good to log contents of
default_container_executor.sh along with the path.
> NodeManager should log container launch command.
> ------------------------------------------------
>
> Key: YARN-307
> URL: https://issues.apache.org/jira/browse/YARN-307
> Project: Hadoop YARN
> Issue Type: Bug
> Components: nodemanager
> Affects Versions: 2.0.3-alpha
> Reporter: Lohit Vijayarenu
>
> NodeManager's DefaultContainerExecutor seems to log only path of default
> container executor script instead of contents of script. It would be good to
> log the execution command so that one could see what is being launched.
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