Re: service config

[Martin Pala]

The configuration is correct - to check the configuration you can use the -t option:

$ monit -t

Control file syntax OK

Monit runs in poll cycles (driven by "set daemon <seconds>" statement)  ... maybe you have long poll cycle so the test was not performed fast enough? For example to check every 5 seconds:

set daemon 5

As mentioned, the verbose mode (-v) will show you when every particular test is performed so you can see what monit actually does.

On Jul 15, 2011, at 12:49 PM, Govind wrote:

Hi Martin,

Sorry for not being clear.

1. First I had this config which did not work

check process dpm with pidfile /var/run/dpm.pid
group root
start program = "/etc/init.d/dpm start"
stop program = "/etc/init.d/dpm stop"
if 5 restarts within 5 cycles then timeout

Further check shows , that  pid file was exist due to segfault, no  dpm process was running, 5015 port  was not open

2. Then i tried adding the port config like one of below as one of below and restarted monit, but it did not worked

if failed port 5015 then restart
OR
if failed port 5015 type tcp then restart

There is nothing in monit log except monit restated.

Finally I restated it manually, will run monit in verbose mode next time. Is there any option like run it in dry-run mode to verify the config.

Thinking to use "check process dpm matching" syntax instead of pidfile.

Thanks
Govind

On Fri, Jul 15, 2011 at 11:25 AM, Martin Pala <address@hidden> wrote:

Hi,

please can you provide more details - what exactly doesn't work? The port test is OK - when it won't accept connection, Monit will restart the service. In the case that the program crashed without cleaning the pidfile as you mentioned, it is no problem - the pidfile will contain PID for which no process exists => it will restart the process.

Please check Monit logs - it is likely that when the process crashed, Monit restarted it and thus the port test passed. You can also run Monit in verbose mode with the -v option to see the details.

Martin

On Jul 15, 2011, at 11:48 AM, Govind wrote:

Hi,

I configured a service like this

check process dpm with pidfile /var/run/dpm.pid
group root
start program = "/etc/init.d/dpm start"
stop program = "/etc/init.d/dpm stop"
if 5 restarts within 5 cycles then timeout

I had segfault, which did not clean up the PID file, so i try checking for port like this
if failed port 5015 then restart
OR
if failed port 5015 type tcp then restart

But none of them work,
the dpm service run as
# netstat -tupln|grep dpm
tcp        0      0 0.0.0.0:5015                0.0.0.0:*                   LISTEN      8628/dpm       

Can  you please advise, if there was anything wrong in above syntax of port checking.

Thanks
Govind

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