Re: Is com.cloud.hypervisor.kvm.resource.KVMHAChecker used by CloudStack?

2016-07-14 Thread Rohan T
Hi Ilya, How are you doing Ivan?, Glad to hear that there's work being done on the HA piece for KVM - unfortunately until this hits 'production ready' we have to struggle along with what we've got. I'm well aware what happens when NFS is disconnected (as this behaviour was the trigger for us

Re: Is com.cloud.hypervisor.kvm.resource.KVMHAChecker used by CloudStack?

2016-07-11 Thread ilya
Rohan As of now: Disconnect the primary NFS from your KVM and see what happens. In the future release: Also, HA piece is being rewritten now. The specs are posted by John Burwell (and me to a smaller extent) if you search cloudstack mailing lists via markmail.org for "KVM HA" you can see the

Is com.cloud.hypervisor.kvm.resource.KVMHAChecker used by CloudStack?

2016-07-11 Thread Rohan T
Hi All, Having been smashed by the unexpected behaviour of the KVM Heartbeat / HA process, we've been working through the logic of the process, and I now believe the intent of the process is sumarised by: = The heartbeat process consists of 3 parts: 1. a shell script that's