Merge branch 'develop' into rav/hacky_cache_factor_fix
Richard van der Hoff
commit
bf01efb864
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|
@ -0,0 +1 @@
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Fix incompatibility with python3 on alpine
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@ -0,0 +1 @@
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Fix exceptions from metrics handler
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@ -1,294 +0,0 @@
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# Copyright 2014-2016 OpenMarket Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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||||
# you may not use this file except in compliance with the License.
|
||||
# You may obtain a copy of the License at
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||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
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||||
#
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||||
# 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.
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||||
|
||||
import argparse
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||||
import collections
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import errno
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import glob
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import os
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import os.path
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import signal
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import subprocess
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import sys
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import time
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from six import iteritems
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import yaml
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SYNAPSE = [sys.executable, "-B", "-m", "synapse.app.homeserver"]
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GREEN = "\x1b[1;32m"
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YELLOW = "\x1b[1;33m"
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RED = "\x1b[1;31m"
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NORMAL = "\x1b[m"
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def pid_running(pid):
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try:
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os.kill(pid, 0)
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return True
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except OSError as err:
|
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if err.errno == errno.EPERM:
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return True
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return False
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def write(message, colour=NORMAL, stream=sys.stdout):
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if colour == NORMAL:
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stream.write(message + "\n")
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else:
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stream.write(colour + message + NORMAL + "\n")
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def abort(message, colour=RED, stream=sys.stderr):
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write(message, colour, stream)
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sys.exit(1)
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def start(configfile):
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write("Starting ...")
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args = SYNAPSE
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args.extend(["--daemonize", "-c", configfile])
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try:
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subprocess.check_call(args)
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write("started synapse.app.homeserver(%r)" %
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(configfile,), colour=GREEN)
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except subprocess.CalledProcessError as e:
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write(
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"error starting (exit code: %d); see above for logs" % e.returncode,
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colour=RED,
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)
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def start_worker(app, configfile, worker_configfile):
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args = [
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"python", "-B",
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"-m", app,
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"-c", configfile,
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"-c", worker_configfile
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]
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try:
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subprocess.check_call(args)
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write("started %s(%r)" % (app, worker_configfile), colour=GREEN)
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except subprocess.CalledProcessError as e:
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write(
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"error starting %s(%r) (exit code: %d); see above for logs" % (
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app, worker_configfile, e.returncode,
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),
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colour=RED,
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)
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def stop(pidfile, app):
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if os.path.exists(pidfile):
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pid = int(open(pidfile).read())
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try:
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os.kill(pid, signal.SIGTERM)
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write("stopped %s" % (app,), colour=GREEN)
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except OSError as err:
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if err.errno == errno.ESRCH:
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write("%s not running" % (app,), colour=YELLOW)
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elif err.errno == errno.EPERM:
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abort("Cannot stop %s: Operation not permitted" % (app,))
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else:
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abort("Cannot stop %s: Unknown error" % (app,))
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Worker = collections.namedtuple("Worker", [
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"app", "configfile", "pidfile", "cache_factor", "cache_factors",
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])
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def main():
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parser = argparse.ArgumentParser()
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parser.add_argument(
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"action",
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choices=["start", "stop", "restart"],
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help="whether to start, stop or restart the synapse",
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)
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parser.add_argument(
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"configfile",
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nargs="?",
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default="homeserver.yaml",
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help="the homeserver config file, defaults to homeserver.yaml",
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)
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parser.add_argument(
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"-w", "--worker",
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metavar="WORKERCONFIG",
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help="start or stop a single worker",
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)
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parser.add_argument(
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"-a", "--all-processes",
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metavar="WORKERCONFIGDIR",
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help="start or stop all the workers in the given directory"
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" and the main synapse process",
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)
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options = parser.parse_args()
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if options.worker and options.all_processes:
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write(
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'Cannot use "--worker" with "--all-processes"',
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stream=sys.stderr
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)
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sys.exit(1)
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configfile = options.configfile
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if not os.path.exists(configfile):
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write(
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"No config file found\n"
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"To generate a config file, run '%s -c %s --generate-config"
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" --server-name=<server name>'\n" % (
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" ".join(SYNAPSE), options.configfile
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),
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stream=sys.stderr,
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)
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sys.exit(1)
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with open(configfile) as stream:
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config = yaml.load(stream)
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pidfile = config["pid_file"]
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cache_factor = config.get("synctl_cache_factor")
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start_stop_synapse = True
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if cache_factor:
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os.environ["SYNAPSE_CACHE_FACTOR"] = str(cache_factor)
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cache_factors = config.get("synctl_cache_factors", {})
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for cache_name, factor in iteritems(cache_factors):
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os.environ["SYNAPSE_CACHE_FACTOR_" + cache_name.upper()] = str(factor)
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worker_configfiles = []
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if options.worker:
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start_stop_synapse = False
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worker_configfile = options.worker
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if not os.path.exists(worker_configfile):
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write(
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"No worker config found at %r" % (worker_configfile,),
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stream=sys.stderr,
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)
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sys.exit(1)
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worker_configfiles.append(worker_configfile)
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if options.all_processes:
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# To start the main synapse with -a you need to add a worker file
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# with worker_app == "synapse.app.homeserver"
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start_stop_synapse = False
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worker_configdir = options.all_processes
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if not os.path.isdir(worker_configdir):
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write(
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"No worker config directory found at %r" % (worker_configdir,),
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stream=sys.stderr,
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)
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sys.exit(1)
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worker_configfiles.extend(sorted(glob.glob(
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os.path.join(worker_configdir, "*.yaml")
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)))
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workers = []
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for worker_configfile in worker_configfiles:
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with open(worker_configfile) as stream:
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worker_config = yaml.load(stream)
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worker_app = worker_config["worker_app"]
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if worker_app == "synapse.app.homeserver":
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# We need to special case all of this to pick up options that may
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# be set in the main config file or in this worker config file.
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worker_pidfile = (
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worker_config.get("pid_file")
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or pidfile
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)
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worker_cache_factor = worker_config.get("synctl_cache_factor") or cache_factor
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worker_cache_factors = (
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worker_config.get("synctl_cache_factors")
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or cache_factors
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)
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daemonize = worker_config.get("daemonize") or config.get("daemonize")
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assert daemonize, "Main process must have daemonize set to true"
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# The master process doesn't support using worker_* config.
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for key in worker_config:
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if key == "worker_app": # But we allow worker_app
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continue
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assert not key.startswith("worker_"), \
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"Main process cannot use worker_* config"
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else:
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worker_pidfile = worker_config["worker_pid_file"]
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worker_daemonize = worker_config["worker_daemonize"]
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assert worker_daemonize, "In config %r: expected '%s' to be True" % (
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worker_configfile, "worker_daemonize")
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worker_cache_factor = worker_config.get("synctl_cache_factor")
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worker_cache_factors = worker_config.get("synctl_cache_factors", {})
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workers.append(Worker(
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worker_app, worker_configfile, worker_pidfile, worker_cache_factor,
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worker_cache_factors,
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))
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|
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action = options.action
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|
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if action == "stop" or action == "restart":
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for worker in workers:
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stop(worker.pidfile, worker.app)
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|
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if start_stop_synapse:
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stop(pidfile, "synapse.app.homeserver")
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|
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# Wait for synapse to actually shutdown before starting it again
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if action == "restart":
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running_pids = []
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if start_stop_synapse and os.path.exists(pidfile):
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running_pids.append(int(open(pidfile).read()))
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for worker in workers:
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if os.path.exists(worker.pidfile):
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running_pids.append(int(open(worker.pidfile).read()))
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if len(running_pids) > 0:
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write("Waiting for process to exit before restarting...")
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for running_pid in running_pids:
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while pid_running(running_pid):
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time.sleep(0.2)
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write("All processes exited; now restarting...")
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|
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if action == "start" or action == "restart":
|
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if start_stop_synapse:
|
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# Check if synapse is already running
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if os.path.exists(pidfile) and pid_running(int(open(pidfile).read())):
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abort("synapse.app.homeserver already running")
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start(configfile)
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for worker in workers:
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env = os.environ.copy()
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|
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if worker.cache_factor:
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os.environ["SYNAPSE_CACHE_FACTOR"] = str(worker.cache_factor)
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|
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for cache_name, factor in worker.cache_factors.iteritems():
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os.environ["SYNAPSE_CACHE_FACTOR_" + cache_name.upper()] = str(factor)
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|
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start_worker(worker.app, configfile, worker.configfile)
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|
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# Reset env back to the original
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os.environ.clear()
|
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os.environ.update(env)
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|
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|
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if __name__ == "__main__":
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main()
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|
|
@ -13,6 +13,7 @@
|
|||
# See the License for the specific language governing permissions and
|
||||
# limitations under the License.
|
||||
|
||||
import logging
|
||||
import os
|
||||
|
||||
import six
|
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|
|
@ -20,6 +21,8 @@ from six.moves import intern
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|||
|
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from prometheus_client.core import REGISTRY, Gauge, GaugeMetricFamily
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|
||||
logger = logging.getLogger(__name__)
|
||||
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CACHE_SIZE_FACTOR = float(os.environ.get("SYNAPSE_CACHE_FACTOR", 0.5))
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|
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|
||||
|
|
@ -76,16 +79,20 @@ def register_cache(cache_type, cache_name, cache):
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return []
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|
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def collect(self):
|
||||
if cache_type == "response_cache":
|
||||
response_cache_size.labels(cache_name).set(len(cache))
|
||||
response_cache_hits.labels(cache_name).set(self.hits)
|
||||
response_cache_evicted.labels(cache_name).set(self.evicted_size)
|
||||
response_cache_total.labels(cache_name).set(self.hits + self.misses)
|
||||
else:
|
||||
cache_size.labels(cache_name).set(len(cache))
|
||||
cache_hits.labels(cache_name).set(self.hits)
|
||||
cache_evicted.labels(cache_name).set(self.evicted_size)
|
||||
cache_total.labels(cache_name).set(self.hits + self.misses)
|
||||
try:
|
||||
if cache_type == "response_cache":
|
||||
response_cache_size.labels(cache_name).set(len(cache))
|
||||
response_cache_hits.labels(cache_name).set(self.hits)
|
||||
response_cache_evicted.labels(cache_name).set(self.evicted_size)
|
||||
response_cache_total.labels(cache_name).set(self.hits + self.misses)
|
||||
else:
|
||||
cache_size.labels(cache_name).set(len(cache))
|
||||
cache_hits.labels(cache_name).set(self.hits)
|
||||
cache_evicted.labels(cache_name).set(self.evicted_size)
|
||||
cache_total.labels(cache_name).set(self.hits + self.misses)
|
||||
except Exception as e:
|
||||
logger.warn("Error calculating metrics for %s: %s", cache_name, e)
|
||||
raise
|
||||
|
||||
yield GaugeMetricFamily("__unused", "")
|
||||
|
||||
|
|
|
|||
|
|
@ -16,6 +16,8 @@
|
|||
import logging
|
||||
from collections import OrderedDict
|
||||
|
||||
from six import itervalues
|
||||
|
||||
from synapse.metrics.background_process_metrics import run_as_background_process
|
||||
from synapse.util.caches import register_cache
|
||||
|
||||
|
|
@ -54,8 +56,6 @@ class ExpiringCache(object):
|
|||
|
||||
self.iterable = iterable
|
||||
|
||||
self._size_estimate = 0
|
||||
|
||||
self.metrics = register_cache("expiring", cache_name, self)
|
||||
|
||||
if not self._expiry_ms:
|
||||
|
|
@ -74,16 +74,11 @@ class ExpiringCache(object):
|
|||
now = self._clock.time_msec()
|
||||
self._cache[key] = _CacheEntry(now, value)
|
||||
|
||||
if self.iterable:
|
||||
self._size_estimate += len(value)
|
||||
|
||||
# Evict if there are now too many items
|
||||
while self._max_len and len(self) > self._max_len:
|
||||
_key, value = self._cache.popitem(last=False)
|
||||
if self.iterable:
|
||||
removed_len = len(value.value)
|
||||
self.metrics.inc_evictions(removed_len)
|
||||
self._size_estimate -= removed_len
|
||||
self.metrics.inc_evictions(len(value.value))
|
||||
else:
|
||||
self.metrics.inc_evictions()
|
||||
|
||||
|
|
@ -134,7 +129,9 @@ class ExpiringCache(object):
|
|||
for k in keys_to_delete:
|
||||
value = self._cache.pop(k)
|
||||
if self.iterable:
|
||||
self._size_estimate -= len(value.value)
|
||||
self.metrics.inc_evictions(len(value.value))
|
||||
else:
|
||||
self.metrics.inc_evictions()
|
||||
|
||||
logger.debug(
|
||||
"[%s] _prune_cache before: %d, after len: %d",
|
||||
|
|
@ -143,7 +140,7 @@ class ExpiringCache(object):
|
|||
|
||||
def __len__(self):
|
||||
if self.iterable:
|
||||
return self._size_estimate
|
||||
return sum(len(entry.value) for entry in itervalues(self._cache))
|
||||
else:
|
||||
return len(self._cache)
|
||||
|
||||
|
|
|
|||
|
|
@ -0,0 +1,294 @@
|
|||
#!/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()
|
||||
Loading…
Reference in New Issue