Changing the cycle time changes the frequency but not what happens.
I still see essentially the following:
* apache stops and monit
detects it
* monit attempts a restart
* monit stops ospfd
* mont
starts apache
* monit unmonitors ospfd
* ... 30 seconds later ...
* apache fails to start
* monit starts ospfd
* ... repeat the above
cycle ...
* after 2 cycles, it triggers my "2 restarts" rule and stops
ospfd
I don't think it should be starting ospfd at all since the
dependent service is failing to restart.
On 06.12.2011 10:34, Rory
Toma wrote:
> What is your cycle time? Is it 30 sec? If it is, try
increasing it to 1 minute.
>
> On 12/6/11 9:12 AM, drich wrote:
>
>>
As I mentioned in an earlier e-mail, I'm trying to get monit to watch a
group of processes so it can start/stop ospfd for an anycast high
availability application. However, in doing this I'm seeing some odd
behaviour that doesn't match what I expect -- is this a bug?
>>
>> In
the scenario below, why is it ever trying to start ospfd? If apache is
down, shouldn't ospfd stay down until apache comes back up or is
monitored again after being unmonitored? It does end up in the correct
state at the end, but not without restarting and stopping ospfd twice in
the meantime.
>>
>> As an example, I have the following configured:
>>
>> check process apache with pidfile /var/run/httpd.pid
>> start
program = "/etc/init.d/httpd start"
>> stop program = "/etc/init.d/httpd
stop"
>> if failed host localhost port 80 protocol http
>> and request
"/" then restart
>> if 2 restarts within 2 cycles then stop
>>
>> check
process ospfd with pidfile /var/run/quagga/ospfd.pid
>> start program =
"/etc/init.d/ospfd start"
>> stop program = "/etc/init.d/ospfd stop"
>>
depends on apache
>>
>> If I make it so that apache cannot run (by
removing execute permissions on /usr/sbin/httpd) and then kill it, I see
the following in the monit logs:
>>
>> Dec 6 08:47:39 tecate
monit[9988]: 'apache' process is not running
>> Dec 6 08:47:39 tecate
monit[9988]: 'apache' trying to restart
>> Dec 6 08:47:39 tecate
monit[9988]: 'ospfd' stop: /etc/init.d/ospfd
>> Dec 6 08:47:39 tecate
monit[9988]: 'apache' start: /etc/init.d/httpd
>> Dec 6 08:47:40 tecate
monit[9988]: 'ospfd' unmonitor on user request
>> Dec 6 08:47:40 tecate
monit[9988]: monit daemon at 9988 awakened
>> Dec 6 08:48:09 tecate
monit[9988]: 'apache' failed to start
>> Dec 6 08:48:09 tecate
monit[9988]: 'ospfd' start: /etc/init.d/ospfd
>> Dec 6 08:48:09 tecate
monit[9988]: 'ospfd' unmonitor action done
>> Dec 6 08:48:09 tecate
monit[9988]: Awakened by User defined signal 1
>> Dec 6 08:48:09 tecate
monit[9988]: 'apache' process is not running
>> Dec 6 08:48:09 tecate
monit[9988]: 'apache' trying to restart
>> Dec 6 08:48:09 tecate
monit[9988]: 'ospfd' stop: /etc/init.d/ospfd
>> Dec 6 08:48:09 tecate
monit[9988]: 'apache' start: /etc/init.d/httpd
>> Dec 6 08:48:09 tecate
monit[9988]: 'ospfd' unmonitor on user request
>> Dec 6 08:48:09 tecate
monit[9988]: monit daemon at 9988 awakened
>> Dec 6 08:48:39 tecate
monit[9988]: 'apache' failed to start
>> Dec 6 08:48:39 tecate
monit[9988]: 'ospfd' start: /etc/init.d/ospfd
>> Dec 6 08:48:39 tecate
monit[9988]: 'ospfd' unmonitor action done
>> Dec 6 08:48:39 tecate
monit[9988]: Awakened by User defined signal 1
>> Dec 6 08:48:39 tecate
monit[9988]: 'apache' service restarted 2 times within 2 cycles(s) -
stop
>> Dec 6 08:48:39 tecate monit[9988]: 'ospfd' stop:
/etc/init.d/ospfd
>> Dec 6 08:48:39 tecate monit[9988]: 'ospfd'
unmonitor on user request
>> Dec 6 08:48:39 tecate monit[9988]: monit
daemon at 9988 awakened
>> Dec 6 08:48:39 tecate monit[9988]: Awakened
by User defined signal 1
>> Dec 6 08:48:39 tecate monit[9988]: 'ospfd'
unmonitor action done
>>
>> --
>>
>> Dan Rich
>>
http://www.employees.org/~drich/ [1]
>> "Step up to red alert!" "Are you
sure, sir?
>> It means changing the bulb in the sign..."
>> - Red Dwarf
(BBC)
>>
>> --
>> To unsubscribe:
>>
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--
Dan
Rich
http://www.employees.org/~drich/ [3]
"Step up to red alert!"
"Are you sure, sir?
It means changing the bulb in the sign..."
- Red
Dwarf (BBC)
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