Hi Boris, ok thanks for the explanation - that makes sense, and covers my "exception case" that I have.
This is atm only available for NFS as I could read (KVM on NFS) ? Cheers On 14 March 2018 at 13:02, Boris Stoyanov <[email protected]> wrote: > Hi Andrija, > > There’s two types of checks Host-HA is doing to determine if host if > healthy. > > 1. Health checks - pings the host as soon as there’s connection issues > with the agent > > If that fails, > > 2. Activity checks - checks if there are any writing operations on the > Disks of the VMs that are running on the hosts. This is to determine if the > VMs are actually alive and executing processes. Only if no disk operations > are executed on the shared storage, only then it’s trying to Recover the > host with IPMI call, if that eventually fails, it migrates the VMs to a > healthy host and Fences the faulty one. > > Hope that explains your case. > > Boris. > > > [email protected] > www.shapeblue.com > 53 Chandos Place, Covent Garden, London WC2N 4HSUK > @shapeblue > > > > > On 14 Mar 2018, at 13:53, Andrija Panic <[email protected]> wrote: > > > > 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 <[email protected]> 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 <[email protected]> > >> Sent: 14 March 2018 09:16 > >> To: [email protected] > >> 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 > >> > >> [email protected] > >> 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 <[email protected]> > >> Sent: 14 March 2018 08:36 > >> To: [email protected] > >> 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 <[email protected]> > >> Sent: 14 March 2018 07:45 > >> To: [email protected] > >> 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. > >> > >> > >> > >> [email protected] > >> 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 <[email protected]> > >> Sent: 14 March 2018 05:05 > >> To: [email protected] > >> 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 <[email protected]> > 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 > >>> > >>> [email protected] > >>> 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 <[email protected]> > >>> Sent: 13 March 2018 16:57 > >>> To: [email protected] > >>> Cc: Jon Marshall <[email protected]> > >>> 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 <[email protected]> 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 <[email protected]> > >>>>> Sent: 13 March 2018 07:01 > >>>>> To: [email protected] > >>>>> 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 > >>>>> > >>>>> [email protected] > >>>>> 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 <[email protected]> > >>>>> Sent: 12 March 2018 17:35 > >>>>> To: [email protected] > >>>>> 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, <[email protected]> > >>> 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 <[email protected]> > >>>>>> Sent: 12 March 2018 15:31 > >>>>>> To: [email protected] > >>>>>> 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 > >>>>>> > >>>>>> [email protected] > >>>>>> 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 <[email protected]> > >>>>>> Sent: 12 March 2018 15:15 > >>>>>> To: [email protected] > >>>>>> 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 <[email protected]> > >>>>>> Sent: 07 March 2018 17:01 > >>>>>> To: [email protected] > >>>>>> 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 > > -- Andrija Panić
