[Linux-ha-dev] OCF RA for rsync daemon Active-Passive setup

[Lars Marowsky-Bree]

On 2006-10-26T10:49:14, Thomas Guyot-Sionnest <Thomas at zango.com> wrote:

> kill -0 <PID> 2>/dev/null
> 
> It won't allow you to make sure the pid is not taken my another process, but
> that's a fairly small risk. 

pid wrap-around is a rather real risk, in particular when you're about
to kill the process id. ;-)

> It can be mitigated by either mounting $HA_VARRUNDIR/rsctmp as tmpfs
> or removing these files on bootup before starting heartbeat.

The directory is cleaned out by the init script anyway.



Sincerely,
    Lars Marowsky-Brée

-- 
High Availability & Clustering
SUSE Labs, Research and Development
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