If you want an example, I used this to get the max RAM used in the last year
from all Virtual machines, take the max spike, and find the new value to be 70%
of that. We recovered a few hundred GB of overallocated RAM this way and were
able to place a few GB to machines that were a little low. Replace "sitename"
with your site.
#!/bin/bash
ramtotal=0
for host in $( echo -e "GET hosts\nFilter: host_groups >= linux\nColumns:
host_name host_address state host_groups\n" | /usr/bin/nc localhost 6557 | cut
-d ';' -f1-4); do
name=`echo $host | cut -d ';' -f1`
ip=`echo $host | cut -d ';' -f2`
state=`echo $host | cut -d ';' -f3`
tags=`echo $host | cut -d ';' -f4`
#/var/pnp4nagios/perfdata/$hostname/Memory_used_memused.rrd
if [ -e
/omd/sites/sitename/var/pnp4nagios/perfdata/$name/Memory_used_memused.rrd ];
then
maxram=$(for mem in $(rrdtool fetch
/omd/sites/sitename/var/pnp4nagios/perfdata/$name/Memory_used_memused.rrd MAX
-s -31536000 | grep -v '\-nan' | awk '{ print $2 }'); do echo $mem; done | sort
-gr | head -n1)
installedram=$(echo -e "GET services\nFilter: host_name =
$name\nFilter: description = Memory used\nColumns: perf_data\n" | /usr/bin/nc
localhost 6557 | cut -d ';' -f5 | awk '{ print $1 }')
maxram=`echo $maxram | awk '{printf "%.2f",$1}'`
recram=$(echo $maxram/.7 | bc -l)
ramchange=$(echo $recram-$installedram | bc -l)
ramtotal=$(echo $ramtotal+$ramchange | bc -l)
echo -e "$name\tRamChange: $ramchange\tRunning total: $ramtotal"
fi
done
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Smith, Cathy
Sent: Sunday, April 19, 2015 3:47 PM
To: [email protected]
Subject: [omd-users] how to output data from check_mk
Is there a way to output the performance data from OMD check_mk via a script?
I've been asked to look into integrating the data captured by check_mk into
another reporting system.
Thank you for your assistance.
Cathy
---
Cathy L. Smith
IT Engineer, CISSP
Pacific Northwest National Laboratory
Operated by Battelle for the
U.S. Department of Energy
Phone: 509.375.2687
Fax: 509.375.2330
Email: [email protected]
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