def _recoverExistingVms(self):
start_time = utils.monotonic_time()
try:
self.log.debug('recovery: started')
# Starting up libvirt might take long when host under high load,
# we prefer running this code in external thread to avoid blocking
# API response.
mog = min(config.getint('vars', 'max_outgoing_migrations'),
numa.cpu_topology().cores)
migration.SourceThread.setMaxOutgoingMigrations(mog)
recovery.all_vms(self)
# recover stage 3: waiting for domains to go up
self._waitForDomainsUp()
recovery.clean_vm_files(self)
self._recovery = False
# Now if we have VMs to restore we should wait pool connection
# and then prepare all volumes.
# Actually, we need it just to get the resources for future
# volumes manipulations
self._waitForStoragePool()
self._preparePathsForRecoveredVMs()
self.log.info('recovery: completed in %is',
utils.monotonic_time() - start_time)
except:
self.log.exception("recovery: failed")
raise
def _recoverExistingVms(self):
start_time = utils.monotonic_time()
try:
self.log.debug('recovery: started')
# Starting up libvirt might take long when host under high load,
# we prefer running this code in external thread to avoid blocking
# API response.
mog = min(config.getint('vars', 'max_outgoing_migrations'),
caps.CpuTopology().cores())
migration.SourceThread.setMaxOutgoingMigrations(mog)
recovery.all_vms(self)
# recover stage 3: waiting for domains to go up
self._waitForDomainsUp()
recovery.clean_vm_files(self)
self._recovery = False
# Now if we have VMs to restore we should wait pool connection
# and then prepare all volumes.
# Actually, we need it just to get the resources for future
# volumes manipulations
self._waitForStoragePool()
self._preparePathsForRecoveredVMs()
self.log.info('recovery: completed in %is',
utils.monotonic_time() - start_time)
except:
self.log.exception("recovery: failed")
raise
def test_clean_vm_files(self):
with fake.VM() as testvm, namedTemporaryDir() as tmpdir:
with MonkeyPatchScope([(constants, 'P_VDSM_RUN', tmpdir + '/')]):
stored = recovery.File(testvm.id)
stored.save(testvm)
loaded = recovery.File(testvm.id)
fakecif = fake.ClientIF()
loaded.load(fakecif)
# we have one recovery file (just created)
self.assertEqual(len(os.listdir(tmpdir)), 1)
# ...but somehow ClientIF failed to create the VM.
self.assertEqual(fakecif.vmContainer, {})
# ... so we can actually do our test.
recovery.clean_vm_files(fakecif)
self.assertEqual(os.listdir(tmpdir), [])
def test_clean_vm_files(self):
with fake.VM() as testvm, namedTemporaryDir() as tmpdir:
with MonkeyPatchScope([(constants, 'P_VDSM_RUN', tmpdir + '/')]):
stored = recovery.File(testvm.id)
stored.save(testvm)
loaded = recovery.File(testvm.id)
fakecif = fake.ClientIF()
loaded.load(fakecif)
# we have one recovery file (just created)
self.assertEqual(len(os.listdir(tmpdir)), 1)
# ...but somehow ClientIF failed to create the VM.
self.assertEqual(fakecif.vmContainer, {})
# ... so we can actually do our test.
recovery.clean_vm_files(fakecif)
self.assertEqual(os.listdir(tmpdir), [])
