On Monday, 16 October 2017 16:12:53 BST Alan McKinnon wrote:
> On 16/10/2017 17:08, Ian Zimmerman wrote:
> > On 2017-10-16 14:11, Alan McKinnon wrote:
> >> My needs here are pretty simple:
> >> local watchdog that checks if a program is running and restart it if
> >> not. If that fails 3 times or so, alert me.
> >> Maybe a few file/dir/fifo monitors as well. Not much else.
> >> 
> >> I don't need any of monit's graphing features or M/monit, I have other
> >> tools for that. And mostly don't even need it's http API either.
> > 
> > supervisor (aka supervisord)
> > 
> > http://supervisord.org/
> > 
> > python based, not sure if that's okay with you
> 
> I forgot about supervisord. Like monit, it runs everywhere and might be
> easier for the team-mates to understand and work with.
> 
> Python is not a problem, all these hosts are ansible-managed anyway, so
> they all have to run python-2.7
> 
> Good find, thanks!

I've used Nagios in the past, but have not kept up with its development and 
the many plugins it provides.  It could do any of the above tasks and much 
more.  It can run scripts (perl, or bash) via daemons (nrpe) on the remote 
systems to restart applications, et al.  The Nagios server possessed the 
ability to set up quite intelligent monitoring and alert hierarchies with 
multilayered comms structures to make sure you are not woken up at 2 a.m. by 
your boss, just because a ping failed to his home NAS.  I also found the logs 
which can be also stored on SQL quite useful both in troubleshooting problems 
and in producing reports.  It can monitor network connectivity, remote OS 
parameters and applications.  Writing your own plugin/module to monitor quite 
specialised use cases is not particularly difficult either.

I expect you may find Nagios more complicated to set up than monit, at least 
initially, but if you don't have the luxury of time to invest on setting up 
Nagios monit may be a better fit.  I don't have in depth experience with other 
monitoring software to comment, so something else may suit better your 
specific needs.
-- 
Regards,
Mick

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