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From "Bill Graham (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CHUKWA-446) Refactor tools/init.d scripts
Date Tue, 12 Jan 2010 20:26:54 GMT

    [ https://issues.apache.org/jira/browse/CHUKWA-446?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12799369#action_12799369
] 

Bill Graham commented on CHUKWA-446:
------------------------------------

I'm also fine without using the init.d scripts, since after looking more closely at the bin/stat-*.sh
scripts they seem like they'll work better for my needs anyway.

@Eric +1 on renaming jettyCollector.sh to collector.sh for consistency and following the foo.sh,
start-foo.sh and stop-foo.sh pattern.

If we're going to refactor the start-*.sh scripts I'd like to suggest we add a feature to
slaves.sh, where if no hostnames are configured, the default behavior would be to start the
daemon on localhost without ssh'ing. This would basically be the same as the wrapped script,
just with pid files managed by start/stop wrapper. 

> Refactor tools/init.d scripts
> -----------------------------
>
>                 Key: CHUKWA-446
>                 URL: https://issues.apache.org/jira/browse/CHUKWA-446
>             Project: Hadoop Chukwa
>          Issue Type: Improvement
>            Reporter: Bill Graham
>
> 1. The scripts try to write lock files to /var/lock/subsys, which is owned by root. We
should change this location to be somewhere that doesn't require root access.
> 2. The actual run command does an su to the CHUKWA_USER which also caused problems for
us. It seems like it would be cleaner to not embed the su calls in the script, but instead
allow the user to su when they run the script (which worked much better for us). That way
everything done by the script would be done by the same user.
> 3. Each script has CHUKWA_HOME, CHUKWA_CONF_DIR and CHUKWA_USER hard coded. Hard coded
defaults is ok, but the ability to override them without modifying the scripts would be ideal.

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