def test_shutdown_closes_port(self):
daemon = IbisServerNode(server_port=self.server_port)
t = threading.Thread(target=daemon.run_daemon)
t.start()
# The daemon won't actually start its main loop until the server
# acknowledges its existence
self._acknowledge_process()
# Request shutdown and wait for thread to finish
daemon.shutdown()
t.join()
assert port_is_closed(daemon.listen_port)
class WorkerTestFixture(ImpalaServerFixture):
def setUp(self):
ImpalaServerFixture.setUp(self)
self.daemon = IbisServerNode(server_port=self.server_port)
self.daemon_t = threading.Thread(target=self.daemon.run_daemon)
self.daemon_t.start()
self._acknowledge_process()
def tearDown(self):
ImpalaServerFixture.tearDown(self)
# Request shutdown and wait for thread to finish
if self.daemon_t.isAlive():
self.daemon.shutdown()
self.daemon_t.join()
def _connect(self, port=None):
if port is None:
port = self.daemon.listen_port
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.connect(('localhost', port))
return sock
def _spawn_worker(self):
if not HAVE_PSUTIL:
pytest.skip('no psutil')
sock = self._connect()
# Ask to create a worker; reply OK on successful fork
sock.send('new')
reply = sock.recv(1024)
assert reply == 'ok'
sock.close()
# Acknowledge the worker's existence
sock, _ = self.server_sock.accept()
msg = sock.recv(1024)
sock.send('ok')
sock.close()
worker_port, worker_pid = struct.unpack('II', msg)
proc = get_proc(worker_pid)
assert proc.status != ('running', 'sleeping')
return worker_port, worker_pid