def test_run_master_does_not_invoke_popen_if_resp_is_ok(self):
mock_network = self.mock_Network.return_value
mock_network.get.return_value = Mock(ok=True)
try:
service_runner = ServiceRunner('frodo:1')
service_runner.run_master()
except ServiceRunError:
pass
assert not self.mock_Popen.called
def test_run_master_invokes_popen(self):
self.mock_time.time.side_effect = range(1000)
mock_network = self.mock_Network.return_value
mock_network.get.return_value = Mock(ok=False)
try:
service_runner = ServiceRunner('frodo:1')
service_runner.run_master()
except ServiceRunError:
pass
assert self.mock_Popen.called
def test_run_master_invokes_popen(self):
self.mock_time.time.side_effect = range(1000)
mock_network = self.mock_Network.return_value
mock_network.get.return_value = Mock(ok=False)
try:
service_runner = ServiceRunner('frodo:1')
service_runner.run_master()
except ServiceRunError:
pass
self.assertEqual(call([ANY, 'master', '--port', '1'], stdout=ANY), self.mock_Popen.call_args)
def test_run_master_invokes_popen(self):
self.mock_time.time.side_effect = range(1000)
mock_network = self.mock_Network.return_value
mock_network.get.return_value = Mock(ok=False)
try:
service_runner = ServiceRunner('frodo:1')
service_runner.run_master()
except ServiceRunError:
pass
assert self.mock_Popen.called
def start_and_block_until_up(self,
port,
timeout_sec=_MASTER_SERVICE_TIMEOUT_SEC):
"""
Start the clusterrunner master service and block until the master responds to web requests. Times out
and throws an exception after timeout_sec.
:param port: the port that the master service will run on
:type port: int
:param timeout_sec: number of seconds to wait for the master to respond before timing out
:type timeout_sec: int
"""
# Start the master service daemon
master_service_cmd = 'nohup {} master --port {} &'.format(
self._executable_path, str(port))
# There are cases when 'clusterrunner deploy' fails, and there is no clusterrunner master service process
# to be seen--but the fix is to just re-run the command.
for i in range(self._MASTER_SERVICE_START_RETRIES):
self._shell_client.exec_command(master_service_cmd, async=True)
# Give the service a second to start up
time.sleep(1)
if self._is_process_running(self._executable_path):
break
else:
self._logger.warning(
'Master service process failed to start on try {}, host {}'
.format(i, self.host))
if not self._is_process_running(self._executable_path):
self._logger.error(
'Master service process failed to start on host {}.'.format(
self.host))
raise SystemExit(1)
# Check to see if the master service is responding to http requests
master_service_url = '{}:{}'.format(self.host, str(port))
master_service = ServiceRunner(master_service_url,
main_executable=self._executable_path)
if not master_service.is_up(master_service_url, timeout=timeout_sec):
self._logger.error(
'Master service process exists on {}, but service on {} failed to respond.'
.format(self.host, master_service_url))
raise SystemExit(1)
def start_and_block_until_up(self, port, timeout_sec=_MASTER_SERVICE_TIMEOUT_SEC):
"""
Start the clusterrunner master service and block until the master responds to web requests. Times out
and throws an exception after timeout_sec.
:param port: the port that the master service will run on
:type port: int
:param timeout_sec: number of seconds to wait for the master to respond before timing out
:type timeout_sec: int
"""
self._shell_client.exec_command('nohup {} master --port {} &'.format(self._executable_path, str(port)),
async=True)
master_service_url = '{}:{}'.format(self.host, str(port))
master_service = ServiceRunner(master_service_url)
if not master_service.is_up(master_service_url, timeout=timeout_sec):
self._logger.error('Master service running on {} failed to start.'.format(master_service_url))
raise SystemExit(1)
def _start_local_services(self, master_url):
"""
In the case that:
- the master url is localhost
- the slaves list is just localhost
Start a master and slave service instance locally.
:param master_url: service url (with port number)
:type master_url: str
"""
service_runner = ServiceRunner(master_url)
try:
service_runner.run_master()
service_runner.run_slave()
except ServiceRunError as ex:
self._logger.error(str(ex))
sys.exit(1)
def start_and_block_until_up(self, port, timeout_sec=_MASTER_SERVICE_TIMEOUT_SEC):
"""
Start the clusterrunner master service and block until the master responds to web requests. Times out
and throws an exception after timeout_sec.
:param port: the port that the master service will run on
:type port: int
:param timeout_sec: number of seconds to wait for the master to respond before timing out
:type timeout_sec: int
"""
# Start the master service daemon
master_service_cmd = "nohup {} master --port {} &".format(self._executable_path, str(port))
# There are cases when 'clusterrunner deploy' fails, and there is no clusterrunner master service process
# to be seen--but the fix is to just re-run the command.
for i in range(self._MASTER_SERVICE_START_RETRIES):
self._shell_client.exec_command(master_service_cmd, async=True)
# Give the service a second to start up
time.sleep(1)
if self._is_process_running(self._executable_path):
break
else:
self._logger.warning("Master service process failed to start on try {}, host {}".format(i, self.host))
if not self._is_process_running(self._executable_path):
self._logger.error("Master service process failed to start on host {}.".format(self.host))
raise SystemExit(1)
# Check to see if the master service is responding to http requests
master_service_url = "{}:{}".format(self.host, str(port))
master_service = ServiceRunner(master_service_url, main_executable=self._executable_path)
if not master_service.is_up(master_service_url, timeout=timeout_sec):
self._logger.error(
"Master service process exists on {}, but service on {} failed to respond.".format(
self.host, master_service_url
)
)
raise SystemExit(1)
def _start_local_services_if_needed(self, master_url):
"""
In the case that:
- the master url is localhost
- the slaves list is just localhost
Start a master and slave service instance locally, if the master is not already running.
:param master_url: service url (with port number)
:type master_url: str
"""
service_runner = ServiceRunner(master_url)
if service_runner.is_master_up():
return
try:
service_runner.run_master()
service_runner.run_slave()
except ServiceRunError as ex:
self._logger.error(str(ex))
sys.exit(1)
def _start_local_services_if_needed(self, master_url):
"""
In the case that:
- the master url is localhost
- the slaves list is just localhost
Start a master and slave service instance locally, if the master is not already running.
:param master_url: service url (with port number)
:type master_url: str
"""
service_runner = ServiceRunner(master_url)
if service_runner.is_master_up():
return
try:
service_runner.run_master()
service_runner.run_slave()
except ServiceRunError as ex:
self._logger.error(str(ex))
sys.exit(1)