Re: monit uptime

On 18. aug. 2005, at 13.08, martin rueegg [metaworx rueegg] wrote:

> > On Behalf Of Jan-Henrik Haukeland
> > Sent: Donnerstag, 18. August 2005 12:31
> >
> > On 18. aug. 2005, at 10.48, martin rueegg [metaworx rueegg] wrote:
> >
> >
> > > the daemon uptime in ''monit summary'' or on the
> > > webinterface seems to be the one of the webserver
> > > and not the one of the deamon process itself.
> >
> > No, it's the monit daemon process. There is not stand-alone web-
> > server! Monit has a built-in "web-server" which run in it's own
> > thread in the monit daemon.
>
> well, I realized that. but when I send a reload (''monit reload''
> or signal HUP) the httpd (thread) restarts anyway, don't it? and
> after that, the uptime is reset. even if the pid of monit is un-
> changed and ps shows the correct time for the process.

Yes, that is true. The reason is, a) monit compute the uptime simply  
by looking at the creation time of its own pid file. b) during a  
reload, monit recreate its own pid file so the timestamp is changed.  
c) The pid file is recreated because the location of the pid file may  
have been changed after a reload.

As the discussion above demonstrate the uptime of the monit process  
can be "wrong". Although I'm not convinced that this particular  
situation is so serious that we should throw away the current KISS  
solution and implement it otherwise.

--
Jan-Henrik Haukeland
Mobil +47 97141255



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