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https://issues.apache.org/jira/browse/MAPREDUCE-4101?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13252795#comment-13252795
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Ahmed Radwan commented on MAPREDUCE-4101:
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It think it is cleaner to avoid hardcoding the commands and have it
configurable with the default in *-default.xml.
> nodemanager depends on /bin/bash
> --------------------------------
>
> Key: MAPREDUCE-4101
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4101
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: nodemanager
> Affects Versions: 0.23.1, trunk
> Environment: FreeBSD 8.2 / 64 bit
> Reporter: Radim Kolar
> Labels: patch
> Attachments: bash-replace-by-sh.txt
>
>
> Currently nodemanager depends on bash shell. It should be well documented for
> system not having bash installed by default such as FreeBSD. Because only
> basic functionality of bash is used, probably changing bash to /bin/sh would
> work enough.
> i found 2 cases:
> 1. DefaultContainerExecutor.java creates file with /bin/bash hardcoded in
> writeLocalWrapperScript. (this needs bash in /bin)
> 2. yarn-hduser-nodemanager-ponto.amerinoc.com.log:2012-04-03 19:50:10,798
> INFO org.apache.hadoop.yarn.server.nodemanager.DefaultContainerExecutor:
> launchContainer: [bash, -c,
> /tmp/nm-local-dir/usercache/hduser/appcache/application_1333474251533_0002/container_1333474251533_0002_01_000012/default_container_executor.sh]
> this created script is also launched by bash - bash anywhere in path works -
> in freebsd it is /usr/local/bin/bash
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