On 5/24/07, Brian Reichert <[EMAIL PROTECTED]> wrote:
On Thu, May 24, 2007 at 12:21:13AM -0700, Kevin Jamieson wrote:
> Brian Reichert wrote:
>
> >What I tracked down was that if the box powered down too quickly
> >for heartbeat to clean up, a PID file was left in place:
> >
> >...
> >
> >But, there's no check to assure the recorded PID is not stale.
> >
> >Have others seen this? This code seems to be in 2.0.8 as well...
>
> FYI, I filed a bug on this a few months back:
>
> http://old.linux-foundation.org/developer_bugzilla/show_bug.cgi?id=1454
>
> There's a patch attached to that bug that worked for us (although the
> patch is Linux-specific, so may not be ideal).
If heartbeat is running as root at the time, ( kill(pid,0) != -1
) implies that pid is currently in use.
I don't see what the checks in /proc gets you at this point; how
is that different than
( kill(pid,0) != -1 ) && pid !=getpid() )
I'm not used to using /proc for this stuff
it tells you if the pid has been reused by another, unrelated, process.
its just an extra check available to linux users.
i committed a modified patch earlier today
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