[jira] Commented: (CASSANDRA-416) modify cassandra.in.sh to only set $CASSANDRA_CONF if it is not already set

["Eric Evans (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-416?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12750674#action_12750674 ] 

Eric Evans commented on CASSANDRA-416:
--------------------------------------

Could you elaborate a little about the problem you're trying to solve here?

The reason I ask:

cassandra.in.sh is meant as a sort of configuration for the startup script (bin/cassandra), and it's pretty much a given that any serious use will require you to edit it or create your own (though the defaults in bin/cassandra.in.sh are meant to be close enough that they should work for a first-test).

Even when running from an SVN checkout, you can run a customized version of cassandra.in.sh (for example to use an alternate CASSANDRA_CONF) by doing something like...

CASSANDRA_INCLUDE=~/.cassandra.in.sh bin/cassandra -f

You could even omit CASSANDRA_CONF entirely from your CASSANDRA_INCLUDE and pass it along in the environment separately.

So, to summarize, I'm thinking that a) this shouldn't be needed, and that b) it might give people the impression that we're expecting them to use an unaltered CASSANDRA_INCLUDE and to set CASSANDRA_CONF, which isn't currently the case. 

Also, all of this would similarly apply to CLASSPATH and JVM_OPTS.

> modify cassandra.in.sh to only set $CASSANDRA_CONF if it is not already set
> ---------------------------------------------------------------------------
>
>                 Key: CASSANDRA-416
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-416
>             Project: Cassandra
>          Issue Type: Improvement
>         Environment: unix/linux
>            Reporter: Lance Weber
>            Priority: Trivial
>             Fix For: 0.5
>
>         Attachments: cass_conf-patch.txt
>
>
> modify cassandra.in.sh to only set $CASSANDRA_CONF if it is not already set

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