diff options
Diffstat (limited to 'synapse/app/synctl.py')
| -rwxr-xr-x | synapse/app/synctl.py | 294 |
1 files changed, 0 insertions, 294 deletions
diff --git a/synapse/app/synctl.py b/synapse/app/synctl.py deleted file mode 100755 index 356e5cb6a7..0000000000 --- a/synapse/app/synctl.py +++ /dev/null @@ -1,294 +0,0 @@ -#!/usr/bin/env python -# -*- coding: utf-8 -*- -# Copyright 2014-2016 OpenMarket Ltd -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# http://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. - -import argparse -import collections -import errno -import glob -import os -import os.path -import signal -import subprocess -import sys -import time - -from six import iteritems - -import yaml - -SYNAPSE = [sys.executable, "-B", "-m", "synapse.app.homeserver"] - -GREEN = "\x1b[1;32m" -YELLOW = "\x1b[1;33m" -RED = "\x1b[1;31m" -NORMAL = "\x1b[m" - - -def pid_running(pid): - try: - os.kill(pid, 0) - return True - except OSError as err: - if err.errno == errno.EPERM: - return True - return False - - -def write(message, colour=NORMAL, stream=sys.stdout): - if colour == NORMAL: - stream.write(message + "\n") - else: - stream.write(colour + message + NORMAL + "\n") - - -def abort(message, colour=RED, stream=sys.stderr): - write(message, colour, stream) - sys.exit(1) - - -def start(configfile): - write("Starting ...") - args = SYNAPSE - args.extend(["--daemonize", "-c", configfile]) - - try: - subprocess.check_call(args) - write("started synapse.app.homeserver(%r)" % - (configfile,), colour=GREEN) - except subprocess.CalledProcessError as e: - write( - "error starting (exit code: %d); see above for logs" % e.returncode, - colour=RED, - ) - - -def start_worker(app, configfile, worker_configfile): - args = [ - "python", "-B", - "-m", app, - "-c", configfile, - "-c", worker_configfile - ] - - try: - subprocess.check_call(args) - write("started %s(%r)" % (app, worker_configfile), colour=GREEN) - except subprocess.CalledProcessError as e: - write( - "error starting %s(%r) (exit code: %d); see above for logs" % ( - app, worker_configfile, e.returncode, - ), - colour=RED, - ) - - -def stop(pidfile, app): - if os.path.exists(pidfile): - pid = int(open(pidfile).read()) - try: - os.kill(pid, signal.SIGTERM) - write("stopped %s" % (app,), colour=GREEN) - except OSError as err: - if err.errno == errno.ESRCH: - write("%s not running" % (app,), colour=YELLOW) - elif err.errno == errno.EPERM: - abort("Cannot stop %s: Operation not permitted" % (app,)) - else: - abort("Cannot stop %s: Unknown error" % (app,)) - - -Worker = collections.namedtuple("Worker", [ - "app", "configfile", "pidfile", "cache_factor", "cache_factors", -]) - - -def main(): - - parser = argparse.ArgumentParser() - - parser.add_argument( - "action", - choices=["start", "stop", "restart"], - help="whether to start, stop or restart the synapse", - ) - parser.add_argument( - "configfile", - nargs="?", - default="homeserver.yaml", - help="the homeserver config file, defaults to homeserver.yaml", - ) - parser.add_argument( - "-w", "--worker", - metavar="WORKERCONFIG", - help="start or stop a single worker", - ) - parser.add_argument( - "-a", "--all-processes", - metavar="WORKERCONFIGDIR", - help="start or stop all the workers in the given directory" - " and the main synapse process", - ) - - options = parser.parse_args() - - if options.worker and options.all_processes: - write( - 'Cannot use "--worker" with "--all-processes"', - stream=sys.stderr - ) - sys.exit(1) - - configfile = options.configfile - - if not os.path.exists(configfile): - write( - "No config file found\n" - "To generate a config file, run '%s -c %s --generate-config" - " --server-name=<server name>'\n" % ( - " ".join(SYNAPSE), options.configfile - ), - stream=sys.stderr, - ) - sys.exit(1) - - with open(configfile) as stream: - config = yaml.load(stream) - - pidfile = config["pid_file"] - cache_factor = config.get("synctl_cache_factor") - start_stop_synapse = True - - if cache_factor: - os.environ["SYNAPSE_CACHE_FACTOR"] = str(cache_factor) - - cache_factors = config.get("synctl_cache_factors", {}) - for cache_name, factor in iteritems(cache_factors): - os.environ["SYNAPSE_CACHE_FACTOR_" + cache_name.upper()] = str(factor) - - worker_configfiles = [] - if options.worker: - start_stop_synapse = False - worker_configfile = options.worker - if not os.path.exists(worker_configfile): - write( - "No worker config found at %r" % (worker_configfile,), - stream=sys.stderr, - ) - sys.exit(1) - worker_configfiles.append(worker_configfile) - - if options.all_processes: - # To start the main synapse with -a you need to add a worker file - # with worker_app == "synapse.app.homeserver" - start_stop_synapse = False - worker_configdir = options.all_processes - if not os.path.isdir(worker_configdir): - write( - "No worker config directory found at %r" % (worker_configdir,), - stream=sys.stderr, - ) - sys.exit(1) - worker_configfiles.extend(sorted(glob.glob( - os.path.join(worker_configdir, "*.yaml") - ))) - - workers = [] - for worker_configfile in worker_configfiles: - with open(worker_configfile) as stream: - worker_config = yaml.load(stream) - worker_app = worker_config["worker_app"] - if worker_app == "synapse.app.homeserver": - # We need to special case all of this to pick up options that may - # be set in the main config file or in this worker config file. - worker_pidfile = ( - worker_config.get("pid_file") - or pidfile - ) - worker_cache_factor = worker_config.get("synctl_cache_factor") or cache_factor - worker_cache_factors = ( - worker_config.get("synctl_cache_factors") - or cache_factors - ) - daemonize = worker_config.get("daemonize") or config.get("daemonize") - assert daemonize, "Main process must have daemonize set to true" - - # The master process doesn't support using worker_* config. - for key in worker_config: - if key == "worker_app": # But we allow worker_app - continue - assert not key.startswith("worker_"), \ - "Main process cannot use worker_* config" - else: - worker_pidfile = worker_config["worker_pid_file"] - worker_daemonize = worker_config["worker_daemonize"] - assert worker_daemonize, "In config %r: expected '%s' to be True" % ( - worker_configfile, "worker_daemonize") - worker_cache_factor = worker_config.get("synctl_cache_factor") - worker_cache_factors = worker_config.get("synctl_cache_factors", {}) - workers.append(Worker( - worker_app, worker_configfile, worker_pidfile, worker_cache_factor, - worker_cache_factors, - )) - - action = options.action - - if action == "stop" or action == "restart": - for worker in workers: - stop(worker.pidfile, worker.app) - - if start_stop_synapse: - stop(pidfile, "synapse.app.homeserver") - - # Wait for synapse to actually shutdown before starting it again - if action == "restart": - running_pids = [] - if start_stop_synapse and os.path.exists(pidfile): - running_pids.append(int(open(pidfile).read())) - for worker in workers: - if os.path.exists(worker.pidfile): - running_pids.append(int(open(worker.pidfile).read())) - if len(running_pids) > 0: - write("Waiting for process to exit before restarting...") - for running_pid in running_pids: - while pid_running(running_pid): - time.sleep(0.2) - write("All processes exited; now restarting...") - - if action == "start" or action == "restart": - if start_stop_synapse: - # Check if synapse is already running - if os.path.exists(pidfile) and pid_running(int(open(pidfile).read())): - abort("synapse.app.homeserver already running") - start(configfile) - - for worker in workers: - env = os.environ.copy() - - if worker.cache_factor: - os.environ["SYNAPSE_CACHE_FACTOR"] = str(worker.cache_factor) - - for cache_name, factor in worker.cache_factors.iteritems(): - os.environ["SYNAPSE_CACHE_FACTOR_" + cache_name.upper()] = str(factor) - - start_worker(worker.app, configfile, worker.configfile) - - # Reset env back to the original - os.environ.clear() - os.environ.update(env) - - -if __name__ == "__main__": - main() |