def set_migratepostcopy(self, vm_name, uri=None):
"""
Switch to postcopy during migration.
:param vm_name: vm's name
:param uri: target virsh uri
:raise: test.error when command fails
"""
cmd = "event --loop --all"
virsh_event_session = virsh.VirshSession(virsh_exec=virsh.VIRSH_EXEC,
auto_close=True,
uri=uri)
virsh_event_session.sendline(cmd)
if not utils_misc.wait_for(
lambda: not virsh.migrate_postcopy(
vm_name, uri=uri, debug=True).exit_status, 10):
raise exceptions.TestError("Failed to set migration postcopy.")
exp_str = "Suspended Post-copy"
if not utils_misc.wait_for(
lambda: re.findall(
exp_str, virsh_event_session.get_stripped_output()), 30):
raise exceptions.TestError(
"Unalbe to find event {}".format(exp_str))
def set_migratepostcopy():
"""
Switch to postcopy during migration
"""
res = virsh.migrate_postcopy(vm_name)
logging.debug("Command output: %s", res)
if not utils_misc.wait_for(
lambda: migration_test.check_vm_state(vm_name, "paused",
"post-copy"), 10):
test.fail("vm status is expected to 'paused (post-copy)'")
def check_bandwidth(params):
"""
Check migration bandwidth
:param params: the parameters used
:raise: test.fail if migration bandwidth does not match expected values
"""
exp_migrate_speed = eval(params.get('exp_migrate_speed', '{}'))
migrate_postcopy_cmd = "yes" == params.get("migrate_postcopy_cmd",
"yes")
if extra.count("bandwidth"):
get_speed(exp_migrate_speed)
if params.get("set_postcopy_in_precopy_phase"):
virsh.migrate_setspeed(vm_name,
params.get("set_postcopy_in_precopy_phase"),
"--postcopy", **virsh_args)
get_speed(exp_migrate_speed)
params.update({
'compare_to_value':
exp_migrate_speed.get("precopy_speed", "8796093022207")
})
if exp_migrate_speed.get("precopy_speed", "0") == "8796093022207":
params.update({'domjob_ignore_status': True})
libvirt_domjobinfo.check_domjobinfo(vm, params)
if migrate_postcopy_cmd:
if not utils_misc.wait_for(
lambda: not virsh.migrate_postcopy(vm_name, **virsh_args).
exit_status, 5):
test.fail("Failed to set migration postcopy.")
if params.get("set_postcopy_in_postcopy_phase"):
virsh.migrate_setspeed(
vm_name, params.get("set_postcopy_in_postcopy_phase"),
"--postcopy", **virsh_args)
get_speed(exp_migrate_speed)
time.sleep(5)
if exp_migrate_speed.get("postcopy_speed"):
params.update(
{'compare_to_value': exp_migrate_speed["postcopy_speed"]})
params.update({'domjob_ignore_status': False})
libvirt_domjobinfo.check_domjobinfo(vm, params)