Thanks for your help :)
On Wed, Jul 3, 2013 at 5:04 PM, Geoff Higginbottom < geoff.higginbot...@shapeblue.com> wrote: > Hi Dean, > > This will not affect the HA failover in the event of a Host failure > > Regards > > Geoff Higginbottom > CTO / Cloud Architect > > > D: +44(0)20 3603 0542<tel:+442036030542> | S: +44(0)20 3603 0540<tel: > +442036030540> | M: +44(0)7968161581<tel:+447968161581> > > geoff.higginbot...@shapeblue.com<mailto:geoff.higginbot...@shapeblue.com> > | www.shapeblue.com > > ShapeBlue Ltd, 53 Chandos Place, Covent Garden, London, WC2N 4HS > > > > On 3 Jul 2013, at 19:51, "Dean Kamali" <dean.kam...@gmail.com<mailto: > dean.kam...@gmail.com>> wrote: > > Geoff thanks for your help, just wondering if this change will have any > impact on HA operations that cloudstack offers for HA instances (if one of > the nodes dies, vm will restart on another node). > > Thanks again for your help > > > On Wed, Jul 3, 2013 at 2:39 PM, David Nalley <da...@gnsa.us<mailto: > da...@gnsa.us>> wrote: > > This warrants a bug IMO. > > --David > > On Wed, Jul 3, 2013 at 2:38 PM, Geoff Higginbottom > <geoff.higginbot...@shapeblue.com<mailto:geoff.higginbot...@shapeblue.com>> > wrote: > Dean, > > I am guessing you are using NFS for your Primary Storage. > > This is actually 'by design'. The logic is that if the storage goes > offline, then all VMs must have also failed, and a 'forced' reboot of the > Host 'might' automatically fix things. > > This is great if you only have one Primary Storage, but typically you > have more than one, so whilst the reboot might fix the failed storage, it > will also kill off all the perfectly good VMs which were still happily > running. > > The fix for XenServer Hosts is to: > > 1. Modify /opt/xensource/bin/xenheartbeat.sh on all your Hosts, > commenting out the two entries which have "reboot -f" > > 2. Identify the PID of the script - pidof -x xenheartbeat.sh > > 3. Restart the Script - kill <pid> > > 4. Force reconnect Host from the UI, the script will then re-launch on > reconnect > > If you running KVM, I'm guessing there is a similar script, but I have > not tried this yet for anything other than XenSever (it does not apply to > ESXi) > > Regards > > Geoff Higginbottom > > D: +44 20 3603 0542 | S: +44 20 3603 0540 | M: +447968161581 > > geoff.higginbot...@shapeblue.com<mailto:geoff.higginbot...@shapeblue.com> > > > -----Original Message----- > From: Dean Kamali [mailto:dean.kam...@gmail.com] > Sent: 03 July 2013 19:14 > To: users@cloudstack.apache.org<mailto:users@cloudstack.apache.org> > Subject: Primary storage failure > > Hello everyone > > I'm testing failure scenarios, and I have noticed that as soon as the > primary storage gets offline. > > cloudstack management server seems to think that the hypervisor is not > responding and it will reboot the node, if you have number of of nodes it > will eventually reboot all of them. (losing everything .. fun! ) > > What if I have multiple primary storage and one of them failed? it will > reboot all of my hypervisors? it doesn't seems right to me. > > Is there is a way to control this behavior? > > it seems that cloud stack management server needs to be a little smarter. > This email and any attachments to it may be confidential and are > intended solely for the use of the individual to whom it is addressed. Any > views or opinions expressed are solely those of the author and do not > necessarily represent those of Shape Blue Ltd or related companies. If you > are not the intended recipient of this email, you must neither take any > action based upon its contents, nor copy or show it to anyone. Please > contact the sender if you believe you have received this email in error. > Shape Blue Ltd is a company incorporated in England & Wales. ShapeBlue > Services India LLP is operated under license from Shape Blue Ltd. ShapeBlue > is a registered trademark. > > > This email and any attachments to it may be confidential and are intended > solely for the use of the individual to whom it is addressed. Any views or > opinions expressed are solely those of the author and do not necessarily > represent those of Shape Blue Ltd or related companies. If you are not the > intended recipient of this email, you must neither take any action based > upon its contents, nor copy or show it to anyone. Please contact the sender > if you believe you have received this email in error. Shape Blue Ltd is a > company incorporated in England & Wales. ShapeBlue Services India LLP is > operated under license from Shape Blue Ltd. ShapeBlue is a registered > trademark. >
