Hi Paul, sorry to bump in the middle of the thread, but just curious about the idea behing host-HA and why it behaves the way you exlained above:
Would it be more sense (or not?), that when MGMT detects agents is unreachable or host unreachable (or after unsuccessful i.e. agent restart, etc...,to be defined), to actually use IPMI to STONITH the node, thus making sure no VMS running and then to really start all HA-enabled VMs on other hosts ? I'm just trying to make parallel to the corosync/pacemaker as clustering suite/services in Linux (RHEL and others), where when majority of nodes detect that one node is down, a common thing (especially for shared storage) is to STONITH that node, make sure it;s down, then move "resource" (in our case VMs) to other cluster nodes ? I see it's actually much broader setup per https://cwiki.apache.org/confluence/display/CLOUDSTACK/Host+HA but again - whole idea (in my head at least...) is when host get's down, we make sure it's down (avoid VM corruption, by doint STONITH to that node) and then start HA VMs on ohter hosts. I understand there might be exceptions as I have right now (4.8) - libvirt get stuck (librbd exception or similar) so agent get's disconnected, but VMs are still running fine... (except DB get messed up, all NICs loose isolation_uri, VR's loose MAC addresses and other IP addresses etc...) Thanks Andrija On 14 March 2018 at 10:57, Jon Marshall <jms....@hotmail.co.uk> wrote: > That would make sense. > > > I have another server being used for something else at the moment so I > will add that in and update this thread when I have tested > > > Jon > > > ________________________________ > From: Paul Angus <paul.an...@shapeblue.com> > Sent: 14 March 2018 09:16 > To: users@cloudstack.apache.org > Subject: RE: KVM HostHA > > I'd need to do some testing, but I suspect that your problem is that you > only have two hosts. At the point that one host is deemed out of service, > you only have one host left. With only one host, CloudStack will show the > cluster as ineligible. > > It is extremely common for any system working as a cluster to require a > minimum starting point of 3 nodes to be able to function. > > > Kind regards, > > Paul Angus > > paul.an...@shapeblue.com > www.shapeblue.com<http://www.shapeblue.com> > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png]< > http://www.shapeblue.com/> > > Shapeblue - The CloudStack Company<http://www.shapeblue.com/> > www.shapeblue.com > Rapid deployment framework for Apache CloudStack IaaS Clouds. CSForge is a > framework developed by ShapeBlue to deliver the rapid deployment of a > standardised ... > > > > 53 Chandos Place, Covent Garden, London WC2N 4HSUK > @shapeblue > > > > > -----Original Message----- > From: Jon Marshall <jms....@hotmail.co.uk> > Sent: 14 March 2018 08:36 > To: users@cloudstack.apache.org > Subject: Re: KVM HostHA > > Hi Paul > > > My testing does indeed end up with the failed host in maintenance mode but > the VMs are never migrated. As I posted earlier the management server seems > to be saying there is no other host that the VM can be migrated to. > > > Couple of questions if you have the time to respond - > > > 1) this article seems to suggest a reboot or powering off a host will end > result in the VMs being migrated and this was on CS v 4.2.1 back in 2013 so > does Host HA do something different > > > 2) Whenever one of my two nodes is taken down in testing the active > compute nodes HA status goes from Available to Ineligible. Should this > happen ie. is it going to Ineligible stopping the manager from migrating > the VMs. > > > Apologies for all the questions but I just can't get this to work at the > moment. If I do eventually get it working I will do a write up for others > with same issue :) > > > ________________________________ > From: Paul Angus <paul.an...@shapeblue.com> > Sent: 14 March 2018 07:45 > To: users@cloudstack.apache.org > Subject: RE: KVM HostHA > > Hi Parth, > > Two answer your questions, VM-HA does not restart VMs on an alternate host > if the original host goes down. The management server (without host-HA) > cannot tell what happened to the host. It cannot tell if there was a > failure in the agent, loss of connectivity to the management NIC or if the > host is truly down. In the first two scenarios, the guest VMs can still be > running perfectly well, and to restart them elsewhere would be very > dangerous. Therefore, the correct thing to do is - nothing but alert the > operator. These scenarios are what Host-HA was introduced for. > > Wrt to STONITH, if no disk activity is detected on the host, host-HA will > try to restart (via IPMI) the host. If, after a configurable number of > attempts, the host agent still does not check in, then host-HA will shut > down the host (via IPMA), trigger VM-HA and mark the host as in-maintenance. > > > > paul.an...@shapeblue.com > www.shapeblue.com<http://www.shapeblue.com> > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png]< > http://www.shapeblue.com/> > > Shapeblue - The CloudStack Company<http://www.shapeblue.com/> > www.shapeblue.com<http://www.shapeblue.com> > Rapid deployment framework for Apache CloudStack IaaS Clouds. CSForge is a > framework developed by ShapeBlue to deliver the rapid deployment of a > standardised ... > > > > 53 Chandos Place, Covent Garden, London WC2N 4HSUK @shapeblue > > > > > -----Original Message----- > From: Parth Patel <parthpatel2...@gmail.com> > Sent: 14 March 2018 05:05 > To: users@cloudstack.apache.org > Subject: Re: KVM HostHA > > Hi Paul, > > Thanks for the clarification. I currently don't have an ipmi enabled > hardware (in test environment), but it will be beneficial if you can help > me clear out some basic concepts of it: > - If HA-enabled VMs are autostarted on another host when current host goes > down, what is the need or purpose of HA-host? (other than management server > able to remotely control it's power interfaces) > - I understood the "Shoot-the-other-node-in-the-head" (STONITH) approach > ACS uses to fence the host, but I couldn't find what mechanism or events > trigger this? > > Thanks and regards, > Parth Patel > > On Wed, 14 Mar 2018 at 02:22 Paul Angus <paul.an...@shapeblue.com> wrote: > > > The management server doesn't ping the host through IPMI. However if > > IPMI is not available, you will not be able to use Host HA, as there > > is no way for CloudStack to 'fence' the host - that is shut it down to > > be sure that a VM cannot start again on that host. > > > > I can explain why that is necessary if you wish. > > > > > > Kind regards, > > > > Paul Angus > > > > paul.an...@shapeblue.com > > www.shapeblue.com<http://www.shapeblue.com> > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png]< > http://www.shapeblue.com/> > > Shapeblue - The CloudStack Company<http://www.shapeblue.com/> > www.shapeblue.com<http://www.shapeblue.com> > Rapid deployment framework for Apache CloudStack IaaS Clouds. CSForge is a > framework developed by ShapeBlue to deliver the rapid deployment of a > standardised ... > > > > > 53 Chandos Place, Covent Garden, London WC2N 4HSUK @shapeblue > > > > > > > > > > -----Original Message----- > > From: Parth Patel <parthpatel2...@gmail.com> > > Sent: 13 March 2018 16:57 > > To: users@cloudstack.apache.org > > Cc: Jon Marshall <jms....@hotmail.co.uk> > > Subject: Re: KVM HostHA > > > > Hi Jon and Victor, > > > > I think the management server pings your host using ipmi (I really > > don't hope this is the case). > > In my case, I did not have OOBM enabled at all (my hardware didn't > > support > > it) > > I think you could disable OOBM and/or HA-Host and give that a try :) > > > > On Tue, 13 Mar 2018 at 20:40 victor <vic...@ihnetworks.com> wrote: > > > > > Hello Guys, > > > > > > I have tried the following two cases. > > > > > > 1, "echo c > /proc/sysrq-trigger" > > > > > > 2, Pulled the network cable of one of the host > > > > > > In both cases, the following happened. > > > > > > ===== > > > 2018-03-13 08:22:54,978 DEBUG [c.c.a.m.ClusteredAgentManagerImpl] > > > (AgentTaskPool-15:ctx-c8d9f5d2) (logid:c0a3d2da) Notifying other > > > nodes of to disconnect > > > 2018-03-13 08:22:54,983 INFO [c.c.a.m.AgentManagerImpl] > > > (AgentTaskPool-16:ctx-d8204625) (logid:ffe4a426) Host 4 is > > > disconnecting with event AgentDisconnected > > > 2018-03-13 08:22:54,985 DEBUG [c.c.a.m.AgentManagerImpl] > > > (AgentTaskPool-16:ctx-d8204625) (logid:ffe4a426) Host 4 is already > > > Alert > > > 2018-03-13 08:22:54,985 DEBUG [c.c.a.m.AgentManagerImpl] > > > (AgentTaskPool-16:ctx-d8204625) (logid:ffe4a426) Deregistering link > > > for > > > 4 with state Alert > > > 2018-03-13 08:22:54,985 DEBUG [c.c.a.m.AgentManagerImpl] > > > (AgentTaskPool-16:ctx-d8204625) (logid:ffe4a426) Remove Agent : 4 > > > ===== > > > > > > But nothing happened for the vm's in that node. I have waited for > > > one hour and the VM's in that node has been migrated to the other > > > available hosts. I think the issue is that the management server > > > still thinks that the VM's in that host is running. Please check the > > > following logs > > > > > > ======= > > > 2018-03-13 11:08:25,882 DEBUG [c.c.c.CapacityManagerImpl] > > > (CapacityChecker:ctx-1d8378af) (logid:ae906a50) Found 1 VMs on host > > > 4 > > > 2018-03-13 11:08:25,888 DEBUG [c.c.c.CapacityManagerImpl] > > > (CapacityChecker:ctx-1d8378af) (logid:ae906a50) Found 0 VM, not > > > running on host 4 ======== > > > > > > > > > On 03/13/2018 04:20 PM, Jon Marshall wrote: > > > > I tried "echo c > /proc/sysrq-trigger" which stopped me getting > > > > into the > > > server but it did not stop the server responding to an ipmitool > > > request on the manager eg - > > > > > > > > > > > > "ipmitool -I lanplus -H 172.16.7.29 -U admin3 -P letmein chassis > > status" > > > > > > > > > > > > from the management server got an answer saying the chassis power > > > > was on > > > so CS never registered the compute node as down. > > > > > > > > > > > > I am obviously doing something wrong but cannot work it out. > > > > > > > > > > > > The management server has one NIC - 172.16.7.4 > > > > > > > > > > > > Each compute node has 3 NICs - > > > > > > > > > > > > cnode1 > > > cnode2 > > > > > > > > > > > > mangement NIC 172.16.7.5 172.16.7.6 > > > > > > > > vm NIC 172.16.6.130 172.16.6.131 > > > > > > > > storage - 172.16.250.4 172.16.250.5 > > > > > > > > > > > > Dell LOM (for Idrac) 172.16.7.29 172.16.7.30 > > > > > > > > > > > > the dell LOM IPs are the ones used to configure OOBM in the UI > > > > > > > > > > > > > > > > If I pull the storage NIC presumably nothing will happen as the > > > > ipmitool > > > check is running across the management NIC so I need to pull both ? > > > > > > > > My understanding of host HA was the management server monitored > > > > the > > > compute nodes using ipmitool and if it did not get a response > > > because the host was down it would fence off that host and move the > > > VMs to an active compute node. > > > > > > > > This is obviously too simplistic so could someone explain how it > > > > is > > > meant to work and what it is protecting against ? > > > > > > > > ________________________________ > > > > From: Paul Angus <paul.an...@shapeblue.com> > > > > Sent: 13 March 2018 07:01 > > > > To: users@cloudstack.apache.org > > > > Subject: RE: KVM HostHA > > > > > > > > Hi all, > > > > > > > > One small note, unplugging the management NIC will only cause an > > > > HA > > > event if the storage is running over that NIC also. > > > > > > > > Is the storage is over a separate NIC then, the guest VMs will > > > > continue > > > to run when the mgmt. NIC is unplugged, Host HA will detect the disk > > > activity and conclude that there is nothing it can do, as the VMs > > > are still running other than mark the hosts as degraded. > > > > > > > > > > > > Kind regards, > > > > > > > > Paul Angus > > > > > > > > paul.an...@shapeblue.com > > > > www.shapeblue.com<http://www.shapeblue.com> > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png]< > http://www.shapeblue.com/> > > Shapeblue - The CloudStack Company<http://www.shapeblue.com/> > www.shapeblue.com<http://www.shapeblue.com> > Rapid deployment framework for Apache CloudStack IaaS Clouds. CSForge is a > framework developed by ShapeBlue to deliver the rapid deployment of a > standardised ... > > > > > > > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png > > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png] > > ]< > > > http://www.shapeblue.com/> > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png]< > http://www.shapeblue.com/> > > Shapeblue - The CloudStack Company<http://www.shapeblue.com/> > www.shapeblue.com<http://www.shapeblue.com> > Rapid deployment framework for Apache CloudStack IaaS Clouds. CSForge is a > framework developed by ShapeBlue to deliver the rapid deployment of a > standardised ... > > > > > > > > > > > Shapeblue - The CloudStack Company > > <https://maps.google.com/?q=ack+Company+%0D%0A%3E+%3E+w&entry=gmail&so > > urce=g> > > <http://www.shapeblue.com/> > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png]< > http://www.shapeblue.com/> > > Shapeblue - The CloudStack Company<http://www.shapeblue.com/> > www.shapeblue.com<http://www.shapeblue.com> > Rapid deployment framework for Apache CloudStack IaaS Clouds. CSForge is a > framework developed by ShapeBlue to deliver the rapid deployment of a > standardised ... > > > > > > > www.shapeblue.com<http://www.shapeblue.com> > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png]< > http://www.shapeblue.com/> > > Shapeblue - The CloudStack Company<http://www.shapeblue.com/> > www.shapeblue.com<http://www.shapeblue.com> > Rapid deployment framework for Apache CloudStack IaaS Clouds. CSForge is a > framework developed by ShapeBlue to deliver the rapid deployment of a > standardised ... > > > > > > > Rapid deployment framework for Apache CloudStack IaaS Clouds. > > > > CSForge is > > > a framework developed by ShapeBlue to deli > > > <https://maps.google.com/?q=is+a+framework+developed+by+ShapeBlue+to > > > +d eli&entry=gmail&source=g>ver the rapid deployment of a > > > standardised ... > > > > > > > > > > > > > > > > 53 Chandos Place, Covent Garden, London WC2N 4HSUK @shapeblue > > > > > > > > > > > > > > > > > > > > -----Original Message----- > > > > From: Parth Patel <parthpatel2...@gmail.com> > > > > Sent: 12 March 2018 17:35 > > > > To: users@cloudstack.apache.org > > > > Subject: Re: KVM HostHA > > > > > > > >> Hi Jon, > > > >> > > > >> As I said, in my case, making the host HA didn't work but by just > > > >> having a HA VM running on host and executing - (WARNING) "echo c > > > >> > /proc/sysrq-trigger" to simulate a kernel crash on host, the > > > >> management server registered it as down and started the VM on > > > >> another host. I know I've suggested this before but I insist you > > > >> give this a try. Also, you don't need to completely power off the > > > >> machine manually but just plugging out the network cable works > > > >> fine. The cloudstack agent after losing connection to management > > > >> server auto reboots because of KVM heartbeat check shell script > > > >> mentioned by Rohit Yadav to one of my earlier queries in other > thread. > > > >> > > > >> On Mon 12 Mar, 2018, 21:23 Jon Marshall, <jms....@hotmail.co.uk> > > wrote: > > > >> Hi Paul > > > >> > > > >> > > > >> Thanks for the response. > > > >> > > > >> > > > >> I think I am not understanding how it was meant to work then. My > > > >> understanding was that the manager used ipmitool to just keep > > > >> querying the compute nodes as to their status so I assumed it > > > >> didn't matter how you shut the node down, once it was down the > > > >> manager would get no response and mark it as down (which it does). > > > >> > > > >> > > > >> I am in testing mode so I think I will just go and pull the power > > > >> and see what happens :) > > > >> > > > >> > > > >> Thanks > > > >> > > > >> > > > >> Jon > > > >> > > > >> > > > >> ________________________________ > > > >> From: Paul Angus <paul.an...@shapeblue.com> > > > >> Sent: 12 March 2018 15:31 > > > >> To: users@cloudstack.apache.org > > > >> Subject: RE: KVM HostHA > > > >> Hi Jon, > > > >> > > > >> I think that what you guys are finding, is that a controlled host > > > >> shutdown, which will cause the agent to shutdown cleanly; Is not > > > >> considered an HA event. I wouldn't expect CloudStack to take any > > > >> action if you shut down a host, only if the host (agent) stops > > > responding. > > > >> > > > >> > > > >> > > > >> > > > >> Kind regards, > > > >> > > > >> Paul Angus > > > >> > > > >> paul.an...@shapeblue.com > > > >> www.shapeblue.com<http://www.shapeblue.com> > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png]< > http://www.shapeblue.com/> > > Shapeblue - The CloudStack Company<http://www.shapeblue.com/> > www.shapeblue.com<http://www.shapeblue.com> > Rapid deployment framework for Apache CloudStack IaaS Clouds. CSForge is a > framework developed by ShapeBlue to deliver the rapid deployment of a > standardised ... > > > > > > > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png > > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png] > > ]< > > > http://www.shapeblue.com/> > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png]< > http://www.shapeblue.com/> > > Shapeblue - The CloudStack Company<http://www.shapeblue.com/> > www.shapeblue.com<http://www.shapeblue.com> > Rapid deployment framework for Apache CloudStack IaaS Clouds. CSForge is a > framework developed by ShapeBlue to deliver the rapid deployment of a > standardised ... > > > > > > > > > > > Shapeblue - The CloudStack Company<http://www.shapeblue.com/> > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png]< > http://www.shapeblue.com/> > > Shapeblue - The CloudStack Company<http://www.shapeblue.com/> > www.shapeblue.com<http://www.shapeblue.com> > Rapid deployment framework for Apache CloudStack IaaS Clouds. CSForge is a > framework developed by ShapeBlue to deliver the rapid deployment of a > standardised ... > > > > > > > www.shapeblue.com<http://www.shapeblue.com> > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png]< > http://www.shapeblue.com/> > > Shapeblue - The CloudStack Company<http://www.shapeblue.com/> > www.shapeblue.com<http://www.shapeblue.com> > Rapid deployment framework for Apache CloudStack IaaS Clouds. CSForge is a > framework developed by ShapeBlue to deliver the rapid deployment of a > standardised ... > > > > > > > Rapid deployment framework for Apache CloudStack IaaS Clouds. > > > > CSForge > > is > > > a framework developed by ShapeBlue to deliver the rapid deployment > > > of a standardised ... > > > > > > > > > > > > > > > >> [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png > > > > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png > > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png] > > ] > > > > > > > > ]< > > > >> http://www.shapeblue.com/> > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png]< > http://www.shapeblue.com/> > > Shapeblue - The CloudStack Company<http://www.shapeblue.com/> > www.shapeblue.com<http://www.shapeblue.com> > Rapid deployment framework for Apache CloudStack IaaS Clouds. CSForge is a > framework developed by ShapeBlue to deliver the rapid deployment of a > standardised ... > > > > > > > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png > > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png] > > ]< > > > http://www.shapeblue.com/> > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png]< > http://www.shapeblue.com/> > > Shapeblue - The CloudStack Company<http://www.shapeblue.com/> > www.shapeblue.com<http://www.shapeblue.com> > Rapid deployment framework for Apache CloudStack IaaS Clouds. CSForge is a > framework developed by ShapeBlue to deliver the rapid deployment of a > standardised ... > > > > > > > > > > > Shapeblue - The CloudStack Company<http://www.shapeblue.com/> > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png]< > http://www.shapeblue.com/> > > Shapeblue - The CloudStack Company<http://www.shapeblue.com/> > www.shapeblue.com<http://www.shapeblue.com> > Rapid deployment framework for Apache CloudStack IaaS Clouds. CSForge is a > framework developed by ShapeBlue to deliver the rapid deployment of a > standardised ... > > > > > > > www.shapeblue.com<http://www.shapeblue.com> > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png]< > http://www.shapeblue.com/> > > Shapeblue - The CloudStack Company<http://www.shapeblue.com/> > www.shapeblue.com<http://www.shapeblue.com> > Rapid deployment framework for Apache CloudStack IaaS Clouds. CSForge is a > framework developed by ShapeBlue to deliver the rapid deployment of a > standardised ... > > > > > > > Rapid deployment framework for Apache CloudStack IaaS Clouds. > > > > CSForge > > is > > > a framework developed by ShapeBlue to deliver the rapid deployment > > > of a standardised ... > > > > > > > > > > > > > > > >> Shapeblue - The CloudStack Company<http://www.shapeblue.com/> > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png]< > http://www.shapeblue.com/> > > Shapeblue - The CloudStack Company<http://www.shapeblue.com/> > www.shapeblue.com<http://www.shapeblue.com> > Rapid deployment framework for Apache CloudStack IaaS Clouds. CSForge is a > framework developed by ShapeBlue to deliver the rapid deployment of a > standardised ... > > > > > > > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png > > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png] > > ]< > > > http://www.shapeblue.com/> > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png]< > http://www.shapeblue.com/> > > Shapeblue - The CloudStack Company<http://www.shapeblue.com/> > www.shapeblue.com<http://www.shapeblue.com> > Rapid deployment framework for Apache CloudStack IaaS Clouds. CSForge is a > framework developed by ShapeBlue to deliver the rapid deployment of a > standardised ... > > > > > > > > > > > Shapeblue - The CloudStack Company<http://www.shapeblue.com/> > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png]< > http://www.shapeblue.com/> > > Shapeblue - The CloudStack Company<http://www.shapeblue.com/> > www.shapeblue.com<http://www.shapeblue.com> > Rapid deployment framework for Apache CloudStack IaaS Clouds. CSForge is a > framework developed by ShapeBlue to deliver the rapid deployment of a > standardised ... > > > > > > > www.shapeblue.com<http://www.shapeblue.com> > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png]< > http://www.shapeblue.com/> > > Shapeblue - The CloudStack Company<http://www.shapeblue.com/> > www.shapeblue.com<http://www.shapeblue.com> > Rapid deployment framework for Apache CloudStack IaaS Clouds. CSForge is a > framework developed by ShapeBlue to deliver the rapid deployment of a > standardised ... > > > > > > > Rapid deployment framework for Apache CloudStack IaaS Clouds. > > > > CSForge > > is > > > a framework developed by ShapeBlue to deliver the rapid deployment > > > of a standardised ... > > > > > > > > > > > > > > > >> www.shapeblue.com<http://www.shapeblue.com> > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png]< > http://www.shapeblue.com/> > > Shapeblue - The CloudStack Company<http://www.shapeblue.com/> > www.shapeblue.com<http://www.shapeblue.com> > Rapid deployment framework for Apache CloudStack IaaS Clouds. CSForge is a > framework developed by ShapeBlue to deliver the rapid deployment of a > standardised ... > > > > > > > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png > > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png] > > ]< > > > http://www.shapeblue.com/> > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png]< > http://www.shapeblue.com/> > > Shapeblue - The CloudStack Company<http://www.shapeblue.com/> > www.shapeblue.com<http://www.shapeblue.com> > Rapid deployment framework for Apache CloudStack IaaS Clouds. CSForge is a > framework developed by ShapeBlue to deliver the rapid deployment of a > standardised ... > > > > > > > > > > > Shapeblue - The CloudStack Company<http://www.shapeblue.com/> > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png]< > http://www.shapeblue.com/> > > Shapeblue - The CloudStack Company<http://www.shapeblue.com/> > www.shapeblue.com<http://www.shapeblue.com> > Rapid deployment framework for Apache CloudStack IaaS Clouds. CSForge is a > framework developed by ShapeBlue to deliver the rapid deployment of a > standardised ... > > > > > > > www.shapeblue.com<http://www.shapeblue.com> > [http://www.shapeblue.com/wp-content/uploads/2017/06/logo.png]< > http://www.shapeblue.com/> > > Shapeblue - The CloudStack Company<http://www.shapeblue.com/> > www.shapeblue.com<http://www.shapeblue.com> > Rapid deployment framework for Apache CloudStack IaaS Clouds. CSForge is a > framework developed by ShapeBlue to deliver the rapid deployment of a > standardised ... > > > > > > > Rapid deployment framework for Apache CloudStack IaaS Clouds. > > > > CSForge > > is > > > a framework developed by ShapeBlue to deliver < > > https://maps.google.com/?q=framework+developed+by+ShapeBlue+to+deliver > > &entry=gmail&source=g > > > > > > the rapid deployment of a standardised ... > > > > > > > > > > > > > > > >> Rapid deployment framework for Apache CloudStack IaaS Clouds. > CSForge > > > >> is a framework developed by ShapeBlue to deliver the rapid > deployment > > > >> of a standardised ... > > > >> > > > >> > > > >> > > > >> 53 Chandos Place, Covent Garden, London WC2N 4HSUK @shapeblue > > > >> > > > >> > > > >> > > > >> > > > >> -----Original Message----- > > > >> From: Jon Marshall <jms....@hotmail.co.uk> > > > >> Sent: 12 March 2018 15:15 > > > >> To: users@cloudstack.apache.org > > > >> Subject: Re: KVM HostHA > > > >> > > > >> I have the same issue here and am not entirely sure what the > behaviour > > > >> should be. > > > >> > > > >> > > > >> I have one manager node and 2 compute nodes running 4.11 with ipmi > > > working > > > >> correctly. > > > >> > > > >> > > > >> From the UI under HA - > > > >> > > > >> > > > >> HA Enabled Yes > > > >> HA State Available > > > >> HA Provider kvmhaprovider > > > >> > > > >> > > > >> although interestingly from the "Details" tab it shows - > > > >> > > > >> > > > >> HA enabled No > > > >> > > > >> > > > >> which I assume is a cosmetic issue ? > > > >> > > > >> > > > >> On each compute node I have one HA enabled VM and one non HA enabled > > VM. > > > >> > > > >> > > > >> I power off a compute node and the UI updates the host status and > the > > > VMs > > > >> on that node stop responding but they never fail over to the other > > node. > > > >> > > > >> > > > >> Couple of things I noticed - > > > >> > > > >> > > > >> 1) as soon as i power off the compute node the HA state on the other > > > node > > > >> shows "Ineligible" > > > >> > > > >> > > > >> 2) In the UI the instances all still show as green even though two > of > > > them > > > >> are not available > > > >> > > > >> > > > >> Any help much appreciated > > > >> > > > >> > > > >> > > > >> > > > >> ________________________________ > > > >> From: victor <vic...@ihnetworks.com> > > > >> Sent: 07 March 2018 17:01 > > > >> To: users@cloudstack.apache.org > > > >> Subject: KVM HostHA > > > >> > > > >> Hello Guys, > > > >> > > > >> I have installed cloudstack 4.11. I have enabled HA for each hosts I > > > have > > > >> added. I have also added ipmi successfully (using ipmi driver). > > > >> The hosts are showing like the following. > > > >> > > > >> ======= > > > >> > > > >> HA Enabled Yes > > > >> HA State Available > > > >> HA Provider kvmhaprovider > > > >> > > > >> ====== > > > >> > > > >> Also the host is showing the following correctly > > > >> > > > >> Resource state --> Enabled > > > >> State --> UP > > > >> Power state --> On > > > >> > > > >> So I have shutdown one of the hosts to see how the KVM hosts Ha is > > > >> working. I have waited for half an hour. But nothing has happened. > > What > > > >> will happen to the VM's in that host, if the host failed to back up. > > > >> There isn't much from logs. > > > >> > > > >> Regards > > > >> Victor > > > >> > > > > > > > > > -- Andrija Panić
