[mrtg] Re: MRTG: 2.9.27b1 --pif-file option broken

[Tobias Oetiker]

Today Colin Horsington wrote:

> Hi all,
>
> Having had a play around with 2.9.27b1 the --pid-file option works fine in
> cron mode and daemon mode when there is only one fork.  However as soon as
> you have multiple forks only the parent process is recorded in the pid file.
>
> For example output for ps is...
>
> #(xxxx)-(1)-(xxxx) -=> ps ax | grep mrtg
> /usr/lib
>  5364 ?        S      0:00 /usr/bin/perl -w /usr/bin/mrtg /etc/mrtg.cfg
> --pid-file /var/run/mrtg.pid
>  5455 ?        S      0:00 /usr/bin/perl -w /usr/bin/mrtg /etc/mrtg.cfg
>
> And if you try and make a nice init script then it's difficult to kill the
> other forks.  I think we have a couple of options:
>
> 1.  Put all the pids into the pid file
> 2.  Make the forks threads and then if the parent is killed so do the
> children

the forks are very short lived creatures, no need to ill them they
will dies off on their own ...

> Of course there maybe many other ways of solving this problem :)
>
>
> Ps.  I am still seeing:
> 	SNMPopen Unknown SNMP Option Key 'avoid_negative_request_ids'
> 	at /usr/bin/mrtg line 1635

are you using the latest mrtg_lib.pm and snmpsession.pm and
ber.pm?

cheers
tobi

> Thanks,
>
> Colin
>

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