yes !!!!!!
i have seen this before, as Somesh pointed out ..,the easy fix is to
comment out the last like of the heartbeat.sh script.
cloudstack heart beat mechanism are designed to reboot hypervisors if the
storage repositories are not available for 120 seconds.
This is the cloudstack design feature - /opt/xensource/bin/xenheartbeat.sh
CHECK OUT The last line of the script … /opt/xensource/bin/xenheartbeat.sh
# for nfs
dirs=$(cat $file | grep sr-mount)
for dir in $dirs
do
mp=`mount | grep $dir`
if [ -n "$mp" ]; then
hb=$dir/hb-$1
date +%s | dd of=$hb count=100 bs=1 2>/dev/null
if [ $? -ne 0 ]; then
/usr/bin/logger -t heartbeat "Potential problem with $hb: not reachable
since $(($(date +%s) - $lastdate)) seconds"
else
lastdate=$(date +%s)
fi
else
/usr/bin/logger -t heartbeat "Potential problem with heartbeat, mount not
found for $dir"
lastdate=$(date +%s)
sed -i /${dir##/*/}/d $file
fi
done
done
/usr/bin/logger -t heartbeat "Problem with $hb: not reachable for $(($(date
+%s) - $lastdate)) seconds, rebooting system!"
reboot -f
i commented out the reboot -f , to avoid reboots ..
thanks
p
On Wed, Aug 19, 2015 at 3:58 PM, Somesh Naidu <somesh.na...@citrix.com>
wrote:
> > So migrating my primary storage to iSCSI would (as a side effect)
> disable the fencing/rebooting?
>
> I can't be 100% sure about that but that's what I got from running through
> the code. I don't have a setup ATM where I could test this to confirm.
>
> Regards,
> Somesh
>
>
> -----Original Message-----
> From: Frank Louwers [mailto:fr...@openminds.be]
> Sent: Wednesday, August 19, 2015 3:55 PM
> To: users@cloudstack.apache.org
> Subject: RE: CS Manager down: all hypervisors reboot
>
> So migrating my primary storage to iSCSI would (as a side effect) disable
> the fencing/rebooting?
>
>
> On 19 Aug 2015 at 21:46:35, Somesh Naidu (somesh.na...@citrix.com) wrote:
>
> > how would this work if primary storage were eg iSCSI?
> I believe we perform the heartbeat check and host fencing for NFS storage
> only.
>
> > Is there no way to disable that, except for modifying kvmheartbeat.sh?
> AFAIK, there isn't.
>
