[Xymon] query-frontend (CLI) for `clientlog`, `xymondboard` and `xymondlog`

[J.C. Cleaver]

On Tue, June 23, 2015 12:50 pm, Mark Felder wrote:
>
>
> On Tue, Jun 23, 2015, at 13:57, Thomas Eckert wrote:
>> Brothers,
>>
>> currently I’m building a fronted for the various query-commands that
>> can
>> be sent to `xymond`. It is still in it’s early stages but I found
>> myself
>> using it daily already. So others may benefit too.
>>
>> It’s named `xymonq` (“xymon query”).
>>
>> Two examples may give a basic idea:
>>
>> 1. Get a list of hosts on page `dc1`:
>> Traditionally this looks like this:
>>
>> 	$ xymon 127.0.0.1 "xymondboard page=dc1 test=info fields=hostname"
>>
>> With xymonq
>>
>> 	$ xymonq -P dc1 -L
>>
>> 2. Get disk information this group of hosts:
>>
>> 	$ for my_host in $(xymon 127.0.0.1 "xymondboard page=dc1 test=info
>> fields=hostname"); do
>> 		echo “HOST=$my_host"
>> 		xymon 127.0.0.1 "xymondlog $my_host.disk"
>> 	done
>>
>> And again the short version with xymonq:
>>
>> 	$ xymonq -q clientlog -P dc1 -s df
>>
>>
>> More information and download here:
>> http://www.it-eckert.com/software/xymonq/
>> <http://www.it-eckert.com/software/xymonq/>
>>
>> Feedback welcome!
>>
>
>
> This looks really useful. Thanks!!


Nifty!

One thing that might be useful is a sort of large-volume mode, optionally
shifting some of the processing from separate TCP xymond queries to a
local grep string, at the expense of network transfer instead.


We often use a perl one-liner (normally in a scriptlet, but on the CL
here) to re-wrap the resulting test message into newlines with the
hostname pre-pended on each line. Since it's a pipe, it's quick, and this
lets us grep lines after the fact:

]$ xymon localhost "xymondboard test=disk fields=hostname,msg" | perl -ne
'm/^(\S+)|/ and $meh=$1 and s/(\\n|<br\/>)/\n$meh: /g and print;' | grep
/boot

server01.example.com|status: /dev/sda1    495844   39330    430914      
9% /boot
server02.example.com|status: /dev/sda1     99150   62675     31355     
67% /boot
server03.example.com|status: /dev/sda1     99150   60628     33402     
65% /boot
server04.example.com|status: /dev/sda1     99150   62856     31174     
67% /boot

etc... (The "<br>" check is so we can use this for HTML content returned
in an HTTP check too.)


-jc