Re: Parallel Poller Run

rizwan butt <[email protected]>
Newsgroups gmane.network.cacti.user
Message-ID <[email protected]>

Thanks that was helpful.
> Date: Tue, 28 Aug 2012 19:01:02 +0200
> From: [email protected]
> To: [email protected]
> Subject: Re: [cacti-user] Parallel Poller Run
> 
> No, there isn't. E.g. in case you have two cron entries, poller.php will run twice.
> In case you have non-standard polling, a "master poller" will run for 5 minutes
> and start the "real polling", thus implementing sub-minute polling ability.
> 
> We take care that poller.php will stop before next poller interval begins. This
> may result in not polling some targets. Often, this is a result in not obeying
> time limits for external commands, thus waiting forever for response of an
> unresponsive system
> Reinhard
> 
> On 28.08.2012 18:23, rizwan butt wrote:
> > 
> > Hi,
> >        I want to know that, is there any check in poller.php to avoid 
> >        parallel poller run. I have seen the code of poller.php the only check 
> >        I could find was the limit on the time since the last poller run. (60 or 300 sec.) 
> >        depending on the cron settings. 
> >        My concern is that if for some reason a poller instance does not finish in (60 or 300 sec.)
> >        another poller instance would start running after (60 or 300 sec.)
> >         I would really appriciate if someone can shed light on this issue.
> > 
> > Best Regards
> > Rizwan
> >  		 	   		  
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