if constants.NV_DRBDLIST in what:
try:
used_minors = bdev.DRBD8.GetUsedDevs().keys()
- except errors.BlockDeviceErrors:
+ except errors.BlockDeviceError:
logging.warning("Can't get used minors list", exc_info=True)
used_minors = []
result[constants.NV_DRBDLIST] = used_minors
try:
hyper.StopInstance(instance)
except errors.HypervisorError, err:
- logging.error("Failed to stop instance")
+ logging.error("Failed to stop instance: %s" % err)
return False
# test every 10secs for 2min
time.sleep(10)
else:
# the shutdown did not succeed
- logging.error("shutdown of '%s' unsuccessful, using destroy", instance)
+ logging.error("Shutdown of '%s' unsuccessful, using destroy",
+ instance.name)
try:
hyper.StopInstance(instance, force=True)
except errors.HypervisorError, err:
- logging.exception("Failed to stop instance")
+ logging.exception("Failed to stop instance: %s" % err)
return False
time.sleep(1)
if instance.name in GetInstanceList([hv_name]):
- logging.error("could not shutdown instance '%s' even by destroy",
+ logging.error("Could not shutdown instance '%s' even by destroy",
instance.name)
return False
return True
+def MigrationInfo(instance):
+ """Gather information about an instance to be migrated.
+
+ @type instance: L{objects.Instance}
+ @param instance: the instance definition
+
+ """
+ hyper = hypervisor.GetHypervisor(instance.hypervisor)
+ try:
+ info = hyper.MigrationInfo(instance)
+ except errors.HypervisorError, err:
+ msg = "Failed to fetch migration information"
+ logging.exception(msg)
+ return (False, '%s: %s' % (msg, err))
+ return (True, info)
+
+
+def AcceptInstance(instance, info, target):
+ """Prepare the node to accept an instance.
+
+ @type instance: L{objects.Instance}
+ @param instance: the instance definition
+ @type info: string/data (opaque)
+ @param info: migration information, from the source node
+ @type target: string
+ @param target: target host (usually ip), on this node
+
+ """
+ hyper = hypervisor.GetHypervisor(instance.hypervisor)
+ try:
+ hyper.AcceptInstance(instance, info, target)
+ except errors.HypervisorError, err:
+ msg = "Failed to accept instance"
+ logging.exception(msg)
+ return (False, '%s: %s' % (msg, err))
+ return (True, "Accept successfull")
+
+
+def FinalizeMigration(instance, info, success):
+ """Finalize any preparation to accept an instance.
+
+ @type instance: L{objects.Instance}
+ @param instance: the instance definition
+ @type info: string/data (opaque)
+ @param info: migration information, from the source node
+ @type success: boolean
+ @param success: whether the migration was a success or a failure
+
+ """
+ hyper = hypervisor.GetHypervisor(instance.hypervisor)
+ try:
+ hyper.FinalizeMigration(instance, info, success)
+ except errors.HypervisorError, err:
+ msg = "Failed to finalize migration"
+ logging.exception(msg)
+ return (False, '%s: %s' % (msg, err))
+ return (True, "Migration Finalized")
+
+
def MigrateInstance(instance, target, live):
"""Migrates an instance to another node.