本文整理汇总了Python中daemon.pidfile方法的典型用法代码示例。如果您正苦于以下问题:Python daemon.pidfile方法的具体用法?Python daemon.pidfile怎么用?Python daemon.pidfile使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类daemon
的用法示例。
在下文中一共展示了daemon.pidfile方法的7个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: kerberos
# 需要导入模块: import daemon [as 别名]
# 或者: from daemon import pidfile [as 别名]
def kerberos(args):
"""Start a kerberos ticket renewer"""
print(settings.HEADER)
if args.daemon:
pid, stdout, stderr, _ = setup_locations(
"kerberos", args.pid, args.stdout, args.stderr, args.log_file
)
stdout = open(stdout, 'w+')
stderr = open(stderr, 'w+')
ctx = daemon.DaemonContext(
pidfile=TimeoutPIDLockFile(pid, -1),
stdout=stdout,
stderr=stderr,
)
with ctx:
krb.run(principal=args.principal, keytab=args.keytab)
stdout.close()
stderr.close()
else:
krb.run(principal=args.principal, keytab=args.keytab)
示例2: start_queue_monitor
# 需要导入模块: import daemon [as 别名]
# 或者: from daemon import pidfile [as 别名]
def start_queue_monitor(poll_frequency, max_workers, user, group, directory):
pw = pwd.getpwnam(user)
gid = pw.pw_gid if group is None else grp.getgrnam(group).gr_gid
# This will capture stderr from this process as well as all child
# energyPATHWAYS processes. Normally it will be empty, but it can
# help capture model startup problems that would otherwise be hard to see.
err = open('/var/log/queue_monitor/qm_stderr_%s.log' % start_time, 'w+')
with daemon.DaemonContext(
files_preserve=[logging.root.handlers[0].stream.fileno()],
pidfile=daemon.pidfile.PIDLockFile('/var/run/queue_monitor/queue_monitor.pid'),
uid=pw.pw_uid,
gid=gid,
working_directory=directory,
stderr=err
):
logger.info('My process id is %i' % os.getpid())
qm = QueueMonitor(poll_frequency, max_workers)
qm.start()
示例3: stop_endpoint
# 需要导入模块: import daemon [as 别名]
# 或者: from daemon import pidfile [as 别名]
def stop_endpoint(name: str = typer.Argument("default", autocompletion=complete_endpoint_name)):
""" Stops an endpoint using the pidfile
"""
endpoint_dir = os.path.join(State.FUNCX_DIR, name)
pid_file = os.path.join(endpoint_dir, "daemon.pid")
if os.path.exists(pid_file):
logger.debug(f"{name} has a daemon.pid file")
pid = None
with open(pid_file, 'r') as f:
pid = int(f.read())
# Attempt terminating
try:
logger.debug("Signalling process: {}".format(pid))
os.kill(pid, signal.SIGTERM)
time.sleep(0.1)
os.kill(pid, signal.SIGKILL)
time.sleep(0.1)
# Wait to confirm that the pid file disappears
if not os.path.exists(pid_file):
logger.info("Endpoint <{}> is now stopped".format(name))
except OSError:
logger.warning("Endpoint {} could not be terminated".format(name))
logger.warning("Attempting Endpoint {} cleanup".format(name))
os.remove(pid_file)
sys.exit(-1)
else:
logger.info("Endpoint <{}> is not active.".format(name))
示例4: scheduler
# 需要导入模块: import daemon [as 别名]
# 或者: from daemon import pidfile [as 别名]
def scheduler(args):
"""Starts Airflow Scheduler"""
print(settings.HEADER)
job = SchedulerJob(
dag_id=args.dag_id,
subdir=process_subdir(args.subdir),
num_runs=args.num_runs,
do_pickle=args.do_pickle)
if args.daemon:
pid, stdout, stderr, log_file = setup_locations("scheduler",
args.pid,
args.stdout,
args.stderr,
args.log_file)
handle = setup_logging(log_file)
stdout = open(stdout, 'w+')
stderr = open(stderr, 'w+')
ctx = daemon.DaemonContext(
pidfile=TimeoutPIDLockFile(pid, -1),
files_preserve=[handle],
stdout=stdout,
stderr=stderr,
)
with ctx:
job.run()
stdout.close()
stderr.close()
else:
signal.signal(signal.SIGINT, sigint_handler)
signal.signal(signal.SIGTERM, sigint_handler)
signal.signal(signal.SIGQUIT, sigquit_handler)
job.run()
示例5: flower
# 需要导入模块: import daemon [as 别名]
# 或者: from daemon import pidfile [as 别名]
def flower(args):
"""Starts Flower, Celery monitoring tool"""
options = [
conf.get('celery', 'BROKER_URL'),
f"--address={args.hostname}",
f"--port={args.port}",
]
if args.broker_api:
options.append(f"--broker-api={args.broker_api}")
if args.url_prefix:
options.append(f"--url-prefix={args.url_prefix}")
if args.basic_auth:
options.append(f"--basic-auth={args.basic_auth}")
if args.flower_conf:
options.append(f"--conf={args.flower_conf}")
flower_cmd = FlowerCommand()
if args.daemon:
pidfile, stdout, stderr, _ = setup_locations(
process="flower",
pid=args.pid,
stdout=args.stdout,
stderr=args.stderr,
log=args.log_file,
)
with open(stdout, "w+") as stdout, open(stderr, "w+") as stderr:
ctx = daemon.DaemonContext(
pidfile=TimeoutPIDLockFile(pidfile, -1),
stdout=stdout,
stderr=stderr,
)
with ctx:
flower_cmd.execute_from_commandline(argv=options)
else:
flower_cmd.execute_from_commandline(argv=options)
示例6: main
# 需要导入模块: import daemon [as 别名]
# 或者: from daemon import pidfile [as 别名]
def main():
parser = argparse.ArgumentParser(description=needl.__description__)
parser.add_argument('--datadir', default=os.getcwd() + '/data', help='Data directory')
parser.add_argument('-d', '--daemon', action='store_true', help='Run as a deamon')
parser.add_argument('-v', '--verbose', action='store_true', help='Increase logging')
parser.add_argument('--logfile', type=argparse.FileType('a'), default=sys.stdout, help='Log to this file. Default is stdout.')
parser.add_argument('--pidfile', default='/tmp/needl.pid', help='Save process PID to this file. Default is /tmp/needl.pid. Only valid when running as a daemon.')
args = parser.parse_args()
if args.daemon and args.logfile is sys.stdout:
args.logfile = open('/tmp/needl.log', 'a')
needl.init(args)
daemonize(args.logfile, args.pidfile) if args.daemon else start()
示例7: daemonize
# 需要导入模块: import daemon [as 别名]
# 或者: from daemon import pidfile [as 别名]
def daemonize(logfile, pidfile):
needl.log.info('Daemonizing and logging to %s', logfile)
with daemon.DaemonContext(working_directory=os.getcwd(),
stderr=logfile,
umask=0o002,
pidfile=daemon.pidfile.PIDLockFile(pidfile)) as dc:
start()