Re: Monit reinitialize itself

[Guido Accardo]

Hi Martin, 

Thank you for answering my question.

On Wed, Jun 18, 2014 at 2:47 PM, Martin Pala <address@hidden> wrote:

Hello,

no, Monit never reloads itself automatically ... according to the log snip, it received the SIGHUP signal (which causes Monit to reload the configuration).

I saw the SIGHUP to, but I can asure you that nobody has reloaded the process manually.

 

 

This can be because the system administrator trigger reload via "monit reload" or the HTTP GUI or he sent the SIGHUP directly (using "kill" command for example).

I'm the sysadmin of this server and nobody but myself has logged in into the server in a week.

 

It is also possible that you have Monit's log integrated in logrotate or something this and it's set to reload Monit when the log is rotated.

You're right about this, I don't even think about the log rotation, I feel silly. /etc/logrotate.d/monit

/var/log/monit.log {

        rotate 4

        weekly

        minsize 1M

        missingok

        create 640 root adm

        notifempty

        compress

        delaycompress

        postrotate

                invoke-rc.d monit reload > /dev/null

        endscript

}

And also, ls -lh /var/log/monit*

-rw-r----- 1 root      adm       40K Jun 18 12:05 monit.log

-rw-r----- 1 root      adm      1.0M Jun 18 06:46 monit.log.1

Thank you again.

Guido.- 

Regards,
Martin

On 18 Jun 2014, at 14:39, Guido Accardo <address@hidden> wrote:

> Hi everyone,
>
> I have a question regarding what I presume is a weird behavior or a least unexpected.
>
> This morning I've received an alert about monit changed it pid. First I've checked that all monitored processes were alive and they were, but in /var/log/monit.log.1 I see:
>
> [UTC Jun 18 06:46:08] info     : Awakened by the SIGHUP signal
> [UTC Jun 18 06:46:08] info     : Reinitializing monit - Control file '/etc/monit/monitrc'
> [UTC Jun 18 06:46:08] info     : Shutting down monit HTTP server
> [UTC Jun 18 06:46:08] info     : monit HTTP server stopped
>
> So, this confirms that monit has been reloaded but I can't see why. I've taken a look into bash_history of all users just in case one of them has restarted it intentionally, but nothing appeared.
>
> Is there an expected situation in what monit could reinitialize itself? I've been using monit for more than 1 year in this server and this is the first time that something like this occurs. Also, cpu use, memory use, load and disk space are fine.
>
> Some more information:
>
> * This is Monit version 5.3.2
> * Ubuntu 12.04.4 64bits (AMI running in amazon EC2)
>
> Thank you.
>
> Best, Guido.-
>
> --
> ---
> Guido Accardo

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Guido Accardo