My plan was to store the connector object at attach_volume time. I was
going to add an additional column to the cinder volume attachment table
that stores the connector that came from nova. The problem is live
migration. After live migration the connector is out of date. Cinder
doesn't have an existing API to update attachment. That will have to be
added, so that the connector info can be updated.
We have needed this for force detach for some time now.
It's on my list, but most likely not until N, or at least not until the
microversions land in Cinder.
Walt
Hi all,
I was wondering if there was any way to cleanly detach volumes from
failed nodes. In the case where the node is up nova-compute will call
Cinder's terminate_connection API with a "connector" that includes
information about the node - e.g., hostname, IP, iSCSI initiator name,
FC WWPNs, etc.
If the node has died, this information is no longer available, and so
the attachment cannot be cleaned up properly. Is there any way to
handle this today? If not, does it make sense to save the connector
elsewhere (e.g., DB) for cases like these?
Thanks,
Avishay
--
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