Triggering on total memory? 🔗 link

One of my servers has a quirk where it will occasionally fail to detect
two-thirds of its RAM on startup.  Is it possible to set things up to
send an alert if *total* RAM is below a certain amount?

-- 
Mark Wagner

You could write a server side script to do it. 
I've got one based on Henrik's rootlogin.pl that checks client data
coming in, If it gets a match on the server name it is looking for it
then checks for a process called service.exe. If that is not running it
sends an alert.

I do it this way because I want a custom alert for that issue not just a
process not running alert. 
I'm sure it would be fairly easy to adapt the script to check the total
memory value from a specific server.

-----Original Message-----
From: xymon-bounces at xymon.com [mailto:xymon-bounces at xymon.com] On
Behalf Of Mark Wagner
Sent: 18 June 2012 08:26
To: xymon at xymon.com
Subject: [Xymon] Triggering on total memory?

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On the server, you can get the total amount of RAM from the "top" client
data like so:

xymon localhost 'clientlog name.of.server section=top' | sed -n '/^Mem:/{s/
total.*$//;s/^.* //;p}'

A client-side script like this should check that the memory is as it should
be:

#!/bin/sh
TEST=ram-check
xymongrep "$TEST:*" | while read LINE; do
  set - ""$LINE; HN="$2"
  [ "$HN" ] || continue
  RAMREQUIRED=`echo "$LINE" | sed "s/^.*${TEST}://;s/ .*$//;s/k$//"`
  HNCOMMAS=`echo "$HN" | sed 's/\./,/g'`
  RAMFOUND=`xymon $XYMSRV "clientlog $HN section=top" | sed -n '/^Mem:/{s/
total.*$//;s/^.* //;s/k$//p}'`
  if [ "$RAMFOUND" -lt "$RAMREQUIRED" ]; then
    COL=red
    MSG="RAM count ${RAMFOUND}kB is less than ${RAMREQUIRED}kB"
  else
    COL=green
    MSG="RAM count ${RAMFOUND}kB is at least ${RAMREQUIRED}kB"
  fi
  echo $XYMON $XYMSRV "status $HNCOMMAS.$TEST $COL `date` $MSG"
done

This script checks any server tagged with "ram-check:NNN" where NNN is a
number of kB" and creates a "ram-check" status page with the result.

J

On Mon, Jun 18, 2012 at 5:25 PM, Mark Wagner <user-faae84d79588@xymon.invalid>wrote: