def wait_active(self, between_wait=1, max_attempts=5):
rt_name = self.name
num_started = len(self.apps_to_start)
if not num_started:
raise excp.StartException("No %r programs started, can not wait for them to become active..." % (rt_name))
def waiter(try_num):
LOG.info("Waiting %s seconds for component %s programs to start.", between_wait, colorizer.quote(rt_name))
LOG.info("Please wait...")
sh.sleep(between_wait)
for i in range(0, max_attempts):
statii = self.status()
if len(statii) == num_started:
not_worked = []
for p_status in statii:
if p_status.status != STATUS_STARTED:
not_worked.append(p_status)
if len(not_worked) == 0:
return
waiter(i + 1)
tot_time = max(0, between_wait * max_attempts)
raise excp.StartException("Failed waiting %s seconds for component %r programs to become active..."
% (tot_time, rt_name))
def start(self):
# Perform a check just to make sure said programs aren't already started and bail out
# so that it we don't unintentionally start new ones and thus causing confusion for all
# involved...
what_may_already_be_started = []
try:
what_may_already_be_started = self.tracereader.apps_started()
except excp.NoTraceException:
pass
if what_may_already_be_started:
msg = "%s programs of component %s may already be running, did you forget to stop those?"
raise excp.StartException(
msg % (len(what_may_already_be_started), self.name))
# Select how we are going to start it and get on with the show...
runner_entry_point = self.get_option("run_type",
default_value=DEFAULT_RUNNER)
starter_args = [self, runner_entry_point]
starter = importer.construct_entry_point(runner_entry_point,
*starter_args)
amount_started = 0
for program in self.applications:
self._start_app(program, starter)
amount_started += 1
return amount_started
def wait_active(self):
# TODO(harlowja) fix this by using the component wait active...
started = False
for _i in range(0, self.wait_attempts):
(st, output) = self._service_status()
if st != _ALIVE:
LOG.info("Please wait %s seconds until libvirt is started.",
self.wait_time)
sh.sleep(self.wait_time)
else:
started = True
if not started:
raise excp.StartException(
"Unable to start the libvirt daemon due to: %s" % (output))
def pre_start(self):
# Let the parent class do its thing
comp.PythonRuntime.pre_start(self)
virt_driver = nhelper.canon_virt_driver(self.get_option('virt_driver'))
if virt_driver == 'libvirt':
virt_type = lv.canon_libvirt_type(self.get_option('libvirt_type'))
LOG.info(
"Checking that your selected libvirt virtualization type %s is working and running.",
colorizer.quote(virt_type))
try:
self.virsh.check_virt(virt_type)
self.virsh.restart_service()
LOG.info(
"Libvirt virtualization type %s seems to be working and running.",
colorizer.quote(virt_type))
except excp.ProcessExecutionError as e:
msg = (
"Libvirt type %r does not seem to be active or configured correctly, "
"perhaps you should be using %r instead: %s" %
(virt_type, lv.DEF_VIRT_TYPE, e))
raise excp.StartException(msg)
