Nagios Support Forum

Posted: **Wed Nov 23, 2016 7:06 am**

Good afternoon,

Whilst the 2.1.1 plugins I installed on my Linux hosts included check_users, check_load, check_disk and check_procs, I don't seem to be able to find anything for checking memory usage (unless it's lurking in there under a different name!)

What plugin would you recommend for monitoring memory on a Linux host, please?

I'm using nagios Core 4.0.8, by the way.
Master and hosts run on Redhat Enterprise Linux Server 6.6.
Hosts have check_nrpe 2.15 installed

I Googled this, but it doesn't indicate compatibility with my version of Core.
https://exchange.nagios.org/directory/P ... pl/details

Thanks in advance

Pete

Posted: **Wed Nov 23, 2016 1:31 pm**

Take a look at this plugin which should work fine -
https://exchange.nagios.org/directory/P ... sh/details

As an example -

Code: Select all

[root@centos7x64 libexec]# wget -O 'check_mem' 'https://exchange.nagios.org/components/com_mtree/attachment.php?link_id=4174&cf_id=24'
--2016-11-23 12:31:00--  https://exchange.nagios.org/components/com_mtree/attachment.php?link_id=4174&cf_id=24
Resolving exchange.nagios.org (exchange.nagios.org)... 66.228.58.94, 2600:3c02::f03c:91ff:fedf:d653
Connecting to exchange.nagios.org (exchange.nagios.org)|66.228.58.94|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 3418 (3.3K) [application/octet-stream]
Saving to: ‘check_mem’

100%[======================================>] 3,418       --.-K/s   in 0.001s

2016-11-23 12:31:01 (3.97 MB/s) - ‘check_mem’ saved [3418/3418]

[root@centos7x64 libexec]# chmod +x check_mem
[root@centos7x64 libexec]# ./check_mem
[MEMORY] Total: 3791 MB - Used: 905 MB - 23% [SWAP] Total: 2047 MB - Used: 0 MB - 0% | MTOTAL=3975606272;;;; MUSED=947126272;;;; MCACHE=944615424;;;; MBUFFER=1855488;;;; STOTAL=2147479552;;;; SUSED=0;;;;

Posted: **Wed Nov 23, 2016 1:33 pm**

There are a lot of plugins which check memory:

https://exchange.nagios.org/directory/P ... ics/Memory

The plugin you reference should work on Core 4.x

Posted: **Fri Nov 25, 2016 7:14 am**

I managed to get check_mem working successfully - thank you very much for the recommendation and the installation instructions, rkennedy!

This thread can now be closed

Pete

Posted: **Mon Nov 28, 2016 2:31 pm**

No problem!

/closed

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