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https://issues.apache.org/jira/browse/HADOOP-4998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12662506#action_12662506
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Doug Cutting commented on HADOOP-4998:
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Another thing to consider is building on http://apr.apache.org/. This seems to
have most of what we'd want, and we could ship with pre-built versions for
linux, windows, etc, since APR includes these. Then we might get rid of the
bash & cygwin requirements. If we want to go this way it would be good to do
an inventory of all the places we use bash and see how many APR might replace.
> Implement a native OS runtime for Hadoop
> ----------------------------------------
>
> Key: HADOOP-4998
> URL: https://issues.apache.org/jira/browse/HADOOP-4998
> Project: Hadoop Core
> Issue Type: New Feature
> Components: native
> Reporter: Arun C Murthy
> Assignee: Arun C Murthy
> Fix For: 0.21.0
>
>
> It would be useful to implement a JNI-based runtime for Hadoop to get access
> to the native OS runtime. This would allow us to stop relying on exec'ing
> bash to get access to information such as user-groups, process limits etc.
> and for features such as chown/chgrp (org.apache.hadoop.util.Shell).
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