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Date: Sat, 23 Feb 2013 00:02:12 +0000 (UTC)
From: "Chris Nauroth (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Message-ID: <JIRA.12633496.1361490311170.326405.1361577732729@arcas>
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Subject: [jira] [Commented] (HDFS-4519) Support override of jsvc binary and
 log file locations when launching secure datanode.
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    [ https://issues.apache.org/jira/browse/HDFS-4519?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13584849#comment-13584849 ] 

Chris Nauroth commented on HDFS-4519:
-------------------------------------

Hi, Jos.  I'd like to suggest that we keep the scope of this jira limited to overriding the jsvc binary, the outfile, and the errfile.  Since jsvc is the expected way to launch a secure data node right now, a change that retires it may have to be flagged incompatible.  The patch I attached here is fairly small and fully backwards-compatible with the existing behavior.

I'd definitely be curious to see what you have in mind though if you want to file another jira.  Are you thinking that we should drop the jsvc dependency from Hadoop and push the process management responsibility to the operator, who can choose to use jsvc or daemontools or whatever other tool is preferred by that operator?

                
> Support override of jsvc binary and log file locations when launching secure datanode.
> --------------------------------------------------------------------------------------
>
>                 Key: HDFS-4519
>                 URL: https://issues.apache.org/jira/browse/HDFS-4519
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: datanode, scripts
>    Affects Versions: 1.2.0
>            Reporter: Chris Nauroth
>            Assignee: Chris Nauroth
>         Attachments: HDFS-4519-branch-1.1.patch
>
>
> Currently, builds based on branch-1 bundle a specific version of jsvc pre-built for Linux, and the startup scripts hard-code the location of the output and error files.  Some deployments may prefer to upgrade to a different version of jsvc, independent of the version bundled in Hadoop, and redirect its output elsewhere.

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