David's devmon watch-dog is much better than mine but I thought I'd share anyways....

I think if I wrote one today, it would be a little different. This was done a few years back and I kinda chuckled at my own work...I made a var for date....lol

Anyways, here you go...

#!/bin/bash

Need Date var for log entry

DATE=date

Grab xymon.ns/xymon web page and check if devom is dead (purple)

Make var to check on purple

DMSTATUS=lynx -accept_all_cookies -dump -nolist -auth=ns:canne 'xymon/Xymon' | grep dm | tail -1 |grep -o "dm:green\|dm:purple" | cut -c 4-

echo Status=$DMSTATUS

if [ $DMSTATUS = purple ] ; then

    echo "devmon is dead, killing, restarting and logging event"
    echo "$DATE DM-Watchdog - devmon is dead ($DMSTATUS), killing and restarting" >> /var/log/devmon.log


    # Kill it twice (sometimes 1 don't work ???)
    /home/xymon/devmon/killdevmon
    sleep 1
    /home/xymon/devmon/killdevmon
    # Start DEVMON
    /home/xymon/devmon/devmon
    # Send Email
    /usr/local/bin/sendEmail -f xymon at ryerson.ca -t kconnell at ryerson.ca -u Devmon Restart -m "Devmon Died and was restarted on $DATE"

else #echo "All Good" echo "$DATE DM-Watchdog - Devmon is All Good ($DMSTATUS)" >> /var/log/devmon.log fi

Ken Connell Intermediate Network Engineer Computer & Communication Services Ryerson University 350 Victoria St RM AB50 Toronto, Ont M5B 2K3 416-979-5000 x6709

----- Original Message ----- From: David Baldwin <david.baldwin at ausport.gov.au> Date: Monday, May 30, 2011 11:53 pm Subject: Re: [Xymon] Configuring Devmon for the first time To: "kconnell at ryerson.ca" <kconnell at ryerson.ca> Cc: Josh Luthman <josh at imaginenetworksllc.com>, "xymon at xymon.com" <xymon at xymon.com>

On 31/05/11 11:24 AM, kconnell at ryerson.ca wrote:

...

I've had issues with devmon not updating the bb-display and everything going purple. I've had this issue since day one (which is over two years now).

I created a "devmon watchdog" script that's runs every 5 min using lynx (txt base html browser) which checks if the status of devmon (shows as dm test) on bb-monitor. If its purple then I kill the devmon process and start it up again....band-aid solution, but it does the trick.

I no script expert, but can share the bash script if you want/need.

...

Here's mine (replace xymonserver with your hostname):

#!/bin/sh COL=bb xymonserver "hobbitdboard xymonserver.dm fields=color" if [ "x$COL" == "xpurple" ] ; then (date "+%x %X restarting purple devmon" /etc/init.d/devmon restart) | tee /var/log/devmon-restart.log | mail -s "Restarting devmon" xymonadmin fi

-- David Baldwin - IT Unit Australian Sports Commission www.ausport.gov.au Tel 02 62147830 Fax 02 62141830 PO Box 176 Belconnen ACT 2616 david.baldwin at ausport.gov.au Leverrier Street Bruce ACT 2617

---

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