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https://issues.apache.org/jira/browse/MAPREDUCE-4847?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13511471#comment-13511471
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Mariappan Asokan commented on MAPREDUCE-4847:
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Hi Peng Li,
Your proposal seems reasonable to me. On Windows, you can specify the
invoker as "cmd /c" to invoke DOS commands. You may want to ask for opinion
from other developers in the community.
-- Asokan
> Command Parsing in Hadoop Streaming
> -----------------------------------
>
> Key: MAPREDUCE-4847
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4847
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: contrib/streaming
> Reporter: Peng Lei
> Labels: features
> Original Estimate: 4h
> Remaining Estimate: 4h
>
> Hadoop streaming parse the mapper and reducer commands by itself, this is not
> a good choice, when I write a complex mapper/reducer script inline, such as
> 'perl -ne ...', it don't work.
> An alternative way is to send the command to the shell, simply create new
> process(sh -c "command_and_args"), this not also simplize the streaming code,
> but also improve its capability!
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