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From "Philip Zeyliger (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-6241) Script to split configurations from one file into multiple, according to templates.
Date Fri, 09 Oct 2009 21:37:31 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-6241?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Philip Zeyliger updated HADOOP-6241:
------------------------------------

    Attachment: HADOOP-6241-v3.patch.txt

Attaching another version, where I've split out the test file.

Nicholas--I tried to update the ant tasks, but there was a deeper problem: I'm using lxml.etree,
which isn't part of the standard python distro (though is a commonly installed package). 
I tried to backport to xml.ElementTree, which worked (though I couldn't preserve the comments
anymore, since ElementTree drops them at parse), but then I realized that that package isn't
even in python 2.4, so it would still be a burden to find machines with the right pre-requisites.

My original motivation here was to share a script that I found useful after splitting a couple
of clusters' configuration files into multiple files.  I used python and lxml, since those
tools were quickest for me.  In terms of integration with the build/test system, Java would
have obviously been better :/   I'm ok with deciding that this isn't the right place for this
script, and just throwing it up on the web somewhere else.  Do you think that's the way we
should go?

BTW, if I were to update the build file, I'd need to pull in a depency to pyAntTasks (which
Avro already uses).

-- Philip

> Script to split configurations from one file into multiple, according to templates.
> -----------------------------------------------------------------------------------
>
>                 Key: HADOOP-6241
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6241
>             Project: Hadoop Common
>          Issue Type: New Feature
>            Reporter: Philip Zeyliger
>         Attachments: HADOOP-6241-v2.patch.txt, HADOOP-6241-v3.patch.txt, HADOOP-6241.patch.txt
>
>
> This script moves properties from hadoop-site.xml into common-site, mapred-site, and
hdfs-site in a reasonably generic way.  This is useful for upgrading clusters from 0.18 to
0.20 and 0.21.

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