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From "Philip Zeyliger (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-4998) Implement a native OS runtime for Hadoop
Date Tue, 01 Dec 2009 04:22:20 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-4998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12784048#action_12784048

Philip Zeyliger commented on HADOOP-4998:

Figured I'd mention that Tomcat has some support for calling into APR:

Javadoc: http://tomcat.apache.org/tomcat-6.0-doc/api/org/apache/tomcat/jni/package-tree.html
Google codesearch link: http://www.google.com/codesearch/p?hl=en#cM_OVOKybvs/tomcat/tomcat-6/v6.0.10/src/apache-tomcat-6.0.10-src.zip|KNqCNnRERSg/apache-tomcat-6.0.10-src/java/org/apache/tomcat/jni/User.java&q=tomcat%20apr&d=10

> Implement a native OS runtime for Hadoop
> ----------------------------------------
>                 Key: HADOOP-4998
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4998
>             Project: Hadoop Common
>          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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