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From "Brandon Williams (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (CASSANDRA-6232) Installation shouldn't fail if /etc/sysctl.d/cassandra is deleted
Date Thu, 24 Oct 2013 19:49:03 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-6232?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Brandon Williams resolved CASSANDRA-6232.
-----------------------------------------

       Resolution: Fixed
    Fix Version/s: 2.0.3
                   1.2.12

I don't see any harm with adding -f, done in 1f4070dbf2

> Installation shouldn't fail if /etc/sysctl.d/cassandra is deleted
> -----------------------------------------------------------------
>
>                 Key: CASSANDRA-6232
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6232
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Packaging
>            Reporter: Faidon Liambotis
>            Assignee: Brandon Williams
>            Priority: Minor
>             Fix For: 1.2.12, 2.0.3
>
>
> The Debian package's postinst currently has this snippet code, under the "configure"
action (i.e. what runs when installing or upgrading):
> {code:none}
>         if ! sysctl -p /etc/sysctl.d/cassandra.conf; then
>             [...]
>             rm -v /etc/sysctl.d/cassandra.conf
>         fi
> {code}
> /etc/sysctl.d/cassandra.conf is a conffile and might be removed by the system administrator.
The sysadmin might not want this sysctl setting or have an entirely different system of managing
the /etc/sysctl.d hierarchy (in our case that would be puppet).
> Since this piece of code doesn't check for the existence and doesn't use rm's "-f" argument,
if the file doesn't exist the rm call fails and the package installation is aborted.
> I'd propose checking for the file's existence instead of just "sysctl -p", so that you
can avoid the nasty warnings too, but adding -f to rm shouldn't hurt either.
> Note that this would probably fail on package upgrades under OpenVZ too, which according
to the error message should be a supported configuration.



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