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I've not been in your situation but that method is a bit too tightly
integrated in for my liking. if you are using some form of package
management you may need to keep applying it
you have a virtual ip which only one of the hosts has at a time. I'd use
that
have the cron job on both but making it check if its host has that ip
address and exit if it doesn't.
Neil
Dan Brown wrote:
> My pair of LVS servers share the same database. I have a couple of sites
> which import data daily from other sites, or via uploaded files. I do not
> want the servers to both be running the same job at the same time obviously
> so I'd like to swap out crontab files when the backup director takes over.
>
> As it happens this should be relatively easy since it's a two server setup
> using Ultramonkey with both the httpd services and the ldirector processes
> on the same server. I don't have to deal with X number of extra possible
> servers.
> However I'm not entirely sure where a _good_ place to put it would be. It
> seems that putting it in the /etc/init.d/ldirector script might work,
> something like:
>
> case "$1" in
> start)
> action "Starting ldirectord" $DAEMON start
> if [ $? -eq 0 ]; then
> cp -f /etc/crontab.ldirector-running /etc/crontab
> fi
> ;;
> stop)
> action "Stopping ldirectord" $DAEMON stop
> if [ $? -eq 0 ]; then
> cp -f /etc/crontab.ldirector-stopped /etc/crontab
> fi
> ;;
> ...
> esac
>
>
> What do you suggest?
>
> _________________________________
> Dan Brown
> zu.com communications inc.
>
>
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