Re: Monitoring cyrusimapd

[Nic Bernstein <nic@xxxxxxxxxxx>]

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@xxxxxxxxxxx
Onlight Inc.                              www.onlight.com
6525 W Bluemound Rd., Ste 24	          v. 414.272.4477
Milwaukee, Wisconsin  53213-4073	  f. 414.290.0335

Attachment: check_cyrus.php
Description: application/php

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