[CentOS] named & rndc
lists at spuddy.org
Sat Sep 22 14:16:41 UTC 2007
On Sat, Sep 22, 2007 at 09:44:20AM -0400, Peter Arremann wrote:
> Because restart executes stop and then start. Even if the process has been
> killed, there may be other things like lock files, shared memory segments and
> so on around that will be properly removed by stop. Therefore using restart
> instead of start is a correct and good practice.
Depending on the rc script it _might_ be safe. In other cases it could
be insanely dangerous. Take, for example, the following "stop" code...
kill -9 `cat /var/run/myapp.pid`
What if "myapp" has died but left the pid file behind? Another process
could have that process ID. You've now killed some innocent defenseless
(oh look... /etc/init.d/pcmcia...)
So... your procedure is _probably_ safe, there's no way it can be called
"good practice" and definitely not "correct".
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