[Xymon] Flushing Stale messages?

[Clark, Sean]

Thanks, I will try it out.


Why does removing the chk file seem to fix it? Does it try to establish
old connections?



On 3/19/13 6:02 AM, "Henrik Størner" <henrik at hswn.dk> wrote:

>On 15-03-2013 20:31, Clark, Sean wrote:
>> As to the debug loading of chk file:
>>
>>
>> 31911 2013-03-15 15:23:17 Opening file /sw/xymon/server/etc/hosts.cfg
>> 31911 2013-03-15 15:23:19 Opening file
>> /sw/xymon/server/etc/client-local.cfg
>> 2013-03-15 15:23:19 Setting up network listener on 127.0.0.1:1985
>> 2013-03-15 15:23:19 Setting up signal handlers
>> 2013-03-15 15:23:19 Setting up xymond channels
>> 31911 2013-03-15 15:23:19 Setting up status channel (id=1)
>> 31911 2013-03-15 15:23:19 calling ftok('/sw/xymon/server',1)
>> 31911 2013-03-15 15:23:19 ftok() returns: 0x1000047
>> 31911 2013-03-15 15:23:19 shmget() returns: 0xD6800C
>> 2013-03-15 15:23:19 FATAL: xymond sees clientcount 1, should be 0
>> Check for hanging xymond_channel processes or stale semaphores
>> 2013-03-15 15:23:19 Cannot setup status channel
>
>This happens when xymond has crashed and is restarting, but either some
>of the old xymond_channel messages are still running (hanging on to a
>shared memory segment or a semaphore), or the shared memory segments
>were not cleaned up after the crash.
>
>You can check with ipcs (as the xymon user) if there are any shared
>memory segments lying around after all of the xymon tasks have exited.
>
>I have a script to cleanup everything and restart Xymon - writing new
>code may on rare occasions mean that xymond crashes :-) - feel free to
>try this. If you're not on a Linux box, make sure the "ipcs -m" and
>"ipcs -s" output has the shmid / semid in column 2. If not, adjust the
>'awk' command to grab the correct column.
>
>
>#!/bin/sh
>
>if [ `id -u` != `id -u xymon` ]
>then
>         echo "You must be the 'xymon' user to run this."
>         exit 1
>fi
>
>echo "Stopping Xymon"
>~xymon/server/xymon.sh stop
>sleep 2
>if [ -f /var/run/xymon/xymond.pid ]
>then
>         echo "Forcing kill of xymon process, PID `cat
>/var/run/xymon/xymond.pid`"
>         kill -9 `cat /var/run/xymon/xymond.pid`
>fi
>
>echo "Cleaning up shared memory segments"
>ipcs -s|grep "^0"|awk '{print $2}'|while read ID; do ipcrm -s $ID; done
>echo "Cleaning up semaphores"
>ipcs -m|grep "^0"|awk '{print $2}'|while read ID; do ipcrm -m $ID; done
>echo "Cleaning up socket files"
>rm ~xymon/server/tmp/xymond_if
>
>echo "Starting Xymon"
>~xymon/server/xymon.sh start
>
>echo "Done"
>exit 0
>
>
>Regards,
>Henrik
>
>_______________________________________________
>Xymon mailing list
>Xymon at xymon.com
>http://lists.xymon.com/mailman/listinfo/xymon


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