Re: Config working on CentOS 5 stopped working on CentOS 6

[Stas Oskin]

Hi,

After some more digging, it occurred to me that it might that monit just stops monitoring the process after it unable to restart it.

So on monit 4.x it appears this state was cleared when just restarting monit, while on 5.x it seems you need actually to mark the check as active manually via the monit command.

Is this correct?

On Fri, Nov 20, 2015 at 5:37 PM, Martin Pala <address@hidden> wrote:

Hi,

please run monit in debug mode and send output:

monit -vI

Regards,

Martin

On 19 Nov 2015, at 20:39, Stas Oskin <address@hidden> wrote:

Hi,

The monit log shows only the general start-up information.

There is no messages about the processes going offline, it's like monit does not use the pid file to find the process anymore.

When I use HTTP port probing though it works just fine. Any idea what could it be?

Regards.

On Sun, Nov 15, 2015 at 9:16 PM, Martin Pala <address@hidden> wrote:

Hi,

please can you provide more details about the problem? (error messages and/or monit log).

Note that monit 5.9 includes fix for program execution for CentOS6/RHEL6, we recommend upgrade to latest monit version (5.15), you can get it here: https://mmonit.com/monit/#download. You can build rpm directly from the source code release: rpmbuild -tb monit-5.15.tar.gz. I think RHEL uses custom configuration file, official monit looks for /etc/monitrc, so you may need to rename the configuration file or create a link after upgrade.

Regards,
Martin

> On 14 Nov 2015, at 16:51, Stas Oskin <address@hidden> wrote:
>
> Hi,
>
> Monit has reliably served us through the years, and we are very happy of it.
>
> Unfortunately during scheduled migration to CentOS 6 due CentOS 5 EOL, we discovered it stopped monitoring the services pid files. HTTP monitoring works fine.
>
> The CentOS 6 version is:
> monit-5.1.1-4.el6.x86_64
>
> CentOS 5 version is:
> monit-4.10.1-8.el5
>
> An example config that not working anymore (but accepted by monit when starting):
> check process XXXX with pidfile /XXXX/pid/XXXXX.pid
>     start program  "/etc/init.d/xxxxx restart"
>     stop program  "/etc/init.d/xxxxxx stop"
>     if mem usage > 85% then restart
>     if 5 restarts within 5 cycles then timeout
>
> I guess something changed in configuration jump from 4 to 5, will appreciate any advice.
>
> Thanks!

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