Monitoring cyrusimapd

[Nic Bernstein]

On 06/19/2018 10:23 AM, Albert Shih wrote:
> Hi everyone,
>
> I would like to know what kind of monitoring you perform on a cyrus-imapd.
> Beside classic (check_imap, check_disk, check_cpu etc...) do you have any
> special thing to monitor about cyrus-imapd.
>
> For example do you launch any check on each database ? How can I check if the replication work fine ?
>

We use the attached PHP plugin in Icinga to monitor the SNMP OIDs 
provided by Cyrus.  I haven't tried this with the newer Prometheus-based 
system, but it works just fine on 2.5.X systems built with SNMP enabled:

       Usage: $argv[0] -H <host> -C <community string> -s <service>
                 -p <property> -c <crit_range> -w <warn_range> -h -t
    <timeout> -d

       Required:
         -H [STRING|IP]
             Hostname or IP address
         -s Which service name to check: This may be any service defined in
             cyrus.conf on host being checked. For example: imap, imaps,
    pop3
             lmtp.  This is also used as a label for the results.

             * Note: To receive a list of services supported by host,
    use the
             special keyword 'list'.

             * Note: Services with special characters in their name, such as
             lmtp[v6], must be quoted; i.e. 'lmtp[v6]'.

       Options:
         -C  STRING
             SNMP community string (defaults to `public').
         -p <property>
             Which property to report (and alarm) on (defaults to 'active'):
                * forks
                * active
                * connections
    ...

Warning & critical thresholds are allowed (scalar or range) for all 
checks.  This is primarily a process oriented check  script. It's useful 
to keep an eye on how many of each service's processes are running 
versus the configured quantity.

You may want to take a look at issue 1827 on GitHub in regards to SNMP 
on Cyrus:
     https://github.com/cyrusimap/cyrus-imapd/issues/1827

Please note that this plugin relies upon utils.php by Marcel Kühn & Doug 
Warner:
http://doug.warner.fm/nagios-utilsphp-script-for-php-plugins.html

Cheers,
     -nic

-- 
Nic Bernstein                             nic at onlight.com
Onlight Inc.                              www.onlight.com
6525 W Bluemound Rd., Ste 24	          v. 414.272.4477
Milwaukee, Wisconsin  53213-4073	  f. 414.290.0335

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