On 16.12.2015 17:52, Ken Gaillot wrote:
On 12/16/2015 02:09 AM, Klechomir wrote:
Hi list,
I have a cluster with VM resources on a cloned active-active storage.
VirtualDomain resource migrates properly during failover (node standby),
but tries to migrate back too early, during failback, ignoring the
"order" constraint, telling it to start when the cloned storage is up.
This causes unnecessary VM restart.
Is there any way to make it wait, until its storage resource is up?
Hi Klecho,
If you have an order constraint, the cluster will not try to start the
VM until the storage resource agent returns success for its start. If
the storage isn't fully up at that point, then the agent is faulty, and
should be modified to wait until the storage is truly available before
returning success.
If you post all your constraints, I can look for anything that might
affect the behavior.
Thanks for the reply, Ken
Seems to me that that the constraints for a cloned resources act a a bit
different.
Here is my config:
primitive p_AA_Filesystem_CDrive1 ocf:heartbeat:Filesystem \
params device="/dev/CSD_CDrive1/AA_CDrive1"
directory="/volumes/AA_CDrive1" fstype="ocfs2" options="rw,noatime"
primitive VM_VM1 ocf:heartbeat:VirtualDomain \
params config="/volumes/AA_CDrive1/VM_VM1/VM1.xml"
hypervisor="qemu:///system" migration_transport="tcp" \
meta allow-migrate="true" target-role="Started"
clone AA_Filesystem_CDrive1 p_AA_Filesystem_CDrive1 \
meta interleave="true" resource-stickiness="0"
target-role="Started"
order VM_VM1_after_AA_Filesystem_CDrive1 inf: AA_Filesystem_CDrive1 VM_VM1
Every time when a node comes back from standby, the VM tries to live
migrate to it long before the filesystem is up.
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