[Xymon] your opinion on Xymon HA (or dual server config).

[john.r.rothlisberger at accenture.com]

I have encountered similar issues in the past and opted for the following script that I run via cron every 10 minutes.

It looks at the number of Xymon processes and if there are too few it attempts a restart and alerts me of the restart.  It is very simple, it is not perfect, but it does work (for me).

#!/bin/sh

PROC=`ps -eaf |egrep 'xymond|hobbitd'|egrep -v 'grep|ps -eaf'|wc -l`
PROC2=`ps -eaf |egrep 'xymond|hobbitd'|egrep -v 'grep|ps -eaf'`
HOSTNAME=`hostname`

echo "------------- `date` --------------" >/home/xymon/logs/am_I_running.log

ERROR=0

if [ "$PROC" -lt 1 ];then
   sleep 5
   PROC=`ps -eaf |egrep 'xymond|hobbitd'|egrep -v 'grep|ps -eaf'|wc -l`
   if [ "$PROC" -lt 1 ];then
      ERROR=1
   fi
fi

if [ "$PROC2" = "" ];then
   sleep 5
   PROC2=`ps -eaf |egrep 'xymond|hobbitd'|egrep -v 'grep|ps -eaf'`
   if [ "$PROC2" = "" ];then
      ERROR=1
   fi
fi

if [ "$ERROR" -eq 1 ];then
   echo "Number of processes: $PROC" >/home/xymon/logs/am_I_running.log
   echo $PROC2 >>/home/xymon/logs/am_I_running.log
   /home/xymon/server/xymon.sh start
   echo "** Restart attempt has been made." >>/home/xymon/logs/am_I_running.log
   mailx -s "$HOSTNAME Xymon may not be running - attempting restart" <youremail>@<yourdomain> </home/xymon/logs/am_I_running.log
   mailx -s "$HOSTNAME Xymon may not be running - attempting restart" <pagernumber>@<textsms> </home/xymon/logs/am_I_running.log
else
   echo "Number of processes: $PROC" >>/home/xymon/logs/am_I_running.log
fi

Thanks,
John
Upcoming PTO: 12/8, 12/15 & 12/16
_____________________________________________________________________
John Rothlisberger
IT Strategy, Infrastructure & Security - Technology Growth Platform
TGP for Business Process Outsourcing
Accenture
312.693.3136 office
_____________________________________________________________________

-----Original Message-----
From: Xymon [mailto:xymon-bounces at xymon.com] On Behalf Of Randall Badilla Castro
Sent: Tuesday, December 15, 2015 4:12 PM
To: xymon at xymon.com
Subject: [Xymon] your opinion on Xymon HA (or dual server config).

Hi:
The new site administrator has been happy with the simplicity and usability of Xymon.
Then have asked for more changes over our actual config.
Currently I have one (kind of resource limited) Sparc V210 as xymon server. But have find out then sometimes the apache or xymond process coredump by some mistakes or changes. Sometimes we notice when this happen so just restart the process or server. But when the problem arises and we don't notice the problem; after 8 hours there is a lot of rrd data that can't be showed. (We can't send sms or emails out of the site domain).

So my boss have asked to make an another xymon server; to workout changes on one and keep the other with the older config till the new changes are "stable".
I have read the HA section but I'm unsure that can justify a cluster. So my question is if I have two xymon servers with the same config and tell the clients that report to both of them; can this scenario accomplish the task ?
I think that my boss is requesting a kind of pre-production/ production config. So I though two same config servers fit the scenario or must use the cluster ??

Any input is welcome!

Thanks a lot!


--

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