checking config outputs a pid file
is at rambler-co.ru
Tue May 27 10:04:07 MSD 2008
On Tue, May 27, 2008 at 01:48:11PM +0800, Jeffrey 'jf' Lim wrote:
> On Tue, May 27, 2008 at 1:31 PM, Igor Sysoev <is at rambler-co.ru> wrote:
> > On Tue, May 27, 2008 at 11:53:45AM +0800, Cherife Li wrote:
> > > Hi all,
> > >
> > > Has anyone noticed that `nginx -t' outputs an empty pid file while the
> > > nginx process isn't running.
> > >
> > > I can only add
> > > if [ ! -s $PID ]; then
> > > rm -f $PID
> > > fi
> > > to the check-config section of my rc file at the moment.
> > Yes, nginx creates pid file on -t to test possibility to create it.
> > It does not write any pid there and does not remove it.
> > The later was done intentionally because there may be race condition
> > when nginx startes, creates file, then someone run nginx -t, it creates
> > file, and deletes it.
> so in this case, if the file is there already, then running nginx -t will
> assume that the file creation is ok, and not do anything to it? This seems
> to be the case for my tests.
No, nginx always tries to create pid file, with -t and without it.
If the file already exists, it is leaved as is.
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