def start(self):
"""Start the process.
This will block until the Crate cluster is ready to process requests.
"""
log.info('Starting Crate process')
self.process = proc = self.enter_context(
subprocess.Popen(self.cmd,
stdin=subprocess.DEVNULL,
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
env=self.env,
universal_newlines=True))
msg = ('CrateDB launching:\n'
' PID: %s\n'
' Logs: %s\n'
' Data: %s')
if not self.keep_data:
msg += ' (removed on stop)\n'
logfile = os.path.join(self.logs_path, self.cluster_name + '.log')
log.info(msg, proc.pid, logfile, self.data_path)
self.addresses = DotDict({})
self.monitor.consumers.append(AddrConsumer(self._set_addr))
self.monitor.start(proc)
line_buf = LineBuffer()
self.monitor.consumers.append(line_buf)
spinner = cycle(['/', '-', '\\', '|'])
def show_spinner():
if sys.stdout.isatty():
print(next(spinner), end='\r')
return True
try:
wait_until(lambda: show_spinner() and _ensure_running(proc) and
self.http_host,
timeout=60)
host = self.addresses.http.host
port = self.addresses.http.port
wait_until(lambda: _ensure_running(proc) and _is_up(host, port),
timeout=30)
if _has_ssl(host, port):
self.http_url = self.http_url.replace('http://', 'https://')
wait_until(
lambda: show_spinner() and cluster_state_200(self.http_url),
timeout=30)
except (SystemError, TimeoutError):
if not line_buf.lines:
_try_print_log(logfile)
else:
for line in line_buf.lines:
log.error(line)
raise SystemExit("Exiting because CrateDB didn't start correctly")
else:
self.monitor.consumers.remove(line_buf)
log.info('Cluster ready to process requests')
def stop(self):
if self.process:
self.process.terminate()
self.process.communicate(timeout=10)
self.addresses = DotDict({})
self.http_host = None
self.http_url = None
if not self.keep_data:
path = self.data_path.split(',')
for p in path:
shutil.rmtree(p)