865 lines
32 KiB
Python
865 lines
32 KiB
Python
#-----------------------------------------------------------
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# Threaded, Gevent and Prefork Servers
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#-----------------------------------------------------------
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import datetime
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import errno
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import logging
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import os
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import os.path
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import platform
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import psutil
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import random
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import resource
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import select
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import signal
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import socket
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import subprocess
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import sys
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import threading
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import time
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import werkzeug.serving
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try:
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import fcntl
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except ImportError:
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pass
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try:
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from setproctitle import setproctitle
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except ImportError:
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setproctitle = lambda x: None
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import openerp
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import openerp.tools.config as config
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from openerp.netsvc import memory_info
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from openerp.release import nt_service_name
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from openerp.tools.misc import stripped_sys_argv, dumpstacks
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import wsgi_server
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_logger = logging.getLogger(__name__)
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SLEEP_INTERVAL = 60 # 1 min
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#----------------------------------------------------------
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# Werkzeug WSGI servers patched
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#----------------------------------------------------------
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class LoggingBaseWSGIServerMixIn(object):
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def handle_error(self, request, client_address):
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t, e, _ = sys.exc_info()
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if t == socket.error and e.errno == errno.EPIPE:
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# broken pipe, ignore error
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return
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_logger.exception('Exception happened during processing of request from %s', client_address)
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class BaseWSGIServerNoBind(LoggingBaseWSGIServerMixIn, werkzeug.serving.BaseWSGIServer):
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""" werkzeug Base WSGI Server patched to skip socket binding. PreforkServer
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use this class, sets the socket and calls the process_request() manually
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"""
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def __init__(self, app):
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werkzeug.serving.BaseWSGIServer.__init__(self, "1", "1", app)
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def server_bind(self):
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# we dont bind beause we use the listen socket of PreforkServer#socket
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# instead we close the socket
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if self.socket:
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self.socket.close()
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def server_activate(self):
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# dont listen as we use PreforkServer#socket
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pass
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# _reexec() should set LISTEN_* to avoid connection refused during reload time. It
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# should also work with systemd socket activation. This is currently untested
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# and not yet used.
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class ThreadedWSGIServerReloadable(LoggingBaseWSGIServerMixIn, werkzeug.serving.ThreadedWSGIServer):
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""" werkzeug Threaded WSGI Server patched to allow reusing a listen socket
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given by the environement, this is used by autoreload to keep the listen
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socket open when a reload happens.
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"""
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def server_bind(self):
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envfd = os.environ.get('LISTEN_FDS')
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if envfd and os.environ.get('LISTEN_PID') == str(os.getpid()):
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self.reload_socket = True
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self.socket = socket.fromfd(int(envfd), socket.AF_INET, socket.SOCK_STREAM)
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# should we os.close(int(envfd)) ? it seem python duplicate the fd.
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else:
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self.reload_socket = False
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super(ThreadedWSGIServerReloadable, self).server_bind()
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def server_activate(self):
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if not self.reload_socket:
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super(ThreadedWSGIServerReloadable, self).server_activate()
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#----------------------------------------------------------
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# AutoReload watcher
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#----------------------------------------------------------
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class AutoReload(object):
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def __init__(self, server):
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self.server = server
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self.files = {}
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self.modules = {}
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import pyinotify
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class EventHandler(pyinotify.ProcessEvent):
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def __init__(self, autoreload):
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self.autoreload = autoreload
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def process_IN_CREATE(self, event):
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_logger.debug('File created: %s', event.pathname)
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self.autoreload.files[event.pathname] = 1
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def process_IN_MODIFY(self, event):
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_logger.debug('File modified: %s', event.pathname)
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self.autoreload.files[event.pathname] = 1
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self.wm = pyinotify.WatchManager()
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self.handler = EventHandler(self)
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self.notifier = pyinotify.Notifier(self.wm, self.handler, timeout=0)
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mask = pyinotify.IN_MODIFY | pyinotify.IN_CREATE # IN_MOVED_FROM, IN_MOVED_TO ?
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for path in openerp.tools.config.options["addons_path"].split(','):
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_logger.info('Watching addons folder %s', path)
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self.wm.add_watch(path, mask, rec=True)
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def process_data(self, files):
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xml_files = [i for i in files if i.endswith('.xml')]
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addons_path = openerp.tools.config.options["addons_path"].split(',')
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for i in xml_files:
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for path in addons_path:
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if i.startswith(path):
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# find out wich addons path the file belongs to
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# and extract it's module name
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right = i[len(path) + 1:].split('/')
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if len(right) < 2:
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continue
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module = right[0]
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self.modules[module]=1
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if self.modules:
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_logger.info('autoreload: xml change detected, autoreload activated')
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restart()
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def process_python(self, files):
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# process python changes
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py_files = [i for i in files if i.endswith('.py')]
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py_errors = []
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# TODO keep python errors until they are ok
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if py_files:
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for i in py_files:
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try:
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source = open(i, 'rb').read() + '\n'
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compile(source, i, 'exec')
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except SyntaxError:
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py_errors.append(i)
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if py_errors:
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_logger.info('autoreload: python code change detected, errors found')
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for i in py_errors:
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_logger.info('autoreload: SyntaxError %s',i)
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else:
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_logger.info('autoreload: python code updated, autoreload activated')
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restart()
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def check_thread(self):
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# Check if some files have been touched in the addons path.
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# If true, check if the touched file belongs to an installed module
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# in any of the database used in the registry manager.
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while 1:
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while self.notifier.check_events(1000):
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self.notifier.read_events()
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self.notifier.process_events()
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l = self.files.keys()
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self.files.clear()
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self.process_data(l)
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self.process_python(l)
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def run(self):
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t = threading.Thread(target=self.check_thread)
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t.setDaemon(True)
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t.start()
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_logger.info('AutoReload watcher running')
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#----------------------------------------------------------
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# Servers: Threaded, Gevented and Prefork
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#----------------------------------------------------------
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class CommonServer(object):
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def __init__(self, app):
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# TODO Change the xmlrpc_* options to http_*
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self.app = app
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# config
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self.interface = config['xmlrpc_interface'] or '0.0.0.0'
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self.port = config['xmlrpc_port']
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# runtime
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self.pid = os.getpid()
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def close_socket(self, sock):
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""" Closes a socket instance cleanly
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:param sock: the network socket to close
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:type sock: socket.socket
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"""
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try:
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sock.shutdown(socket.SHUT_RDWR)
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except socket.error, e:
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if e.errno == errno.EBADF:
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# Werkzeug > 0.9.6 closes the socket itself (see commit
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# https://github.com/mitsuhiko/werkzeug/commit/4d8ca089)
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return
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# On OSX, socket shutdowns both sides if any side closes it
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# causing an error 57 'Socket is not connected' on shutdown
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# of the other side (or something), see
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# http://bugs.python.org/issue4397
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# note: stdlib fixed test, not behavior
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if e.errno != errno.ENOTCONN or platform.system() not in ['Darwin', 'Windows']:
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raise
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sock.close()
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class ThreadedServer(CommonServer):
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def __init__(self, app):
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super(ThreadedServer, self).__init__(app)
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self.main_thread_id = threading.currentThread().ident
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# Variable keeping track of the number of calls to the signal handler defined
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# below. This variable is monitored by ``quit_on_signals()``.
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self.quit_signals_received = 0
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#self.socket = None
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self.httpd = None
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def signal_handler(self, sig, frame):
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if sig in [signal.SIGINT,signal.SIGTERM]:
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# shutdown on kill -INT or -TERM
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self.quit_signals_received += 1
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if self.quit_signals_received > 1:
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# logging.shutdown was already called at this point.
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sys.stderr.write("Forced shutdown.\n")
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os._exit(0)
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elif sig == signal.SIGHUP:
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# restart on kill -HUP
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openerp.phoenix = True
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self.quit_signals_received += 1
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def cron_thread(self, number):
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while True:
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time.sleep(SLEEP_INTERVAL + number) # Steve Reich timing style
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registries = openerp.modules.registry.RegistryManager.registries
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_logger.debug('cron%d polling for jobs', number)
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for db_name, registry in registries.items():
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while True and registry.ready:
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acquired = openerp.addons.base.ir.ir_cron.ir_cron._acquire_job(db_name)
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if not acquired:
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break
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def cron_spawn(self):
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""" Start the above runner function in a daemon thread.
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The thread is a typical daemon thread: it will never quit and must be
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terminated when the main process exits - with no consequence (the processing
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threads it spawns are not marked daemon).
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"""
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# Force call to strptime just before starting the cron thread
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# to prevent time.strptime AttributeError within the thread.
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# See: http://bugs.python.org/issue7980
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datetime.datetime.strptime('2012-01-01', '%Y-%m-%d')
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for i in range(openerp.tools.config['max_cron_threads']):
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def target():
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self.cron_thread(i)
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t = threading.Thread(target=target, name="openerp.service.cron.cron%d" % i)
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t.setDaemon(True)
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t.start()
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_logger.debug("cron%d started!" % i)
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def http_thread(self):
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def app(e,s):
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return self.app(e,s)
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self.httpd = ThreadedWSGIServerReloadable(self.interface, self.port, app)
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self.httpd.serve_forever()
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def http_spawn(self):
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threading.Thread(target=self.http_thread).start()
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_logger.info('HTTP service (werkzeug) running on %s:%s', self.interface, self.port)
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def start(self):
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_logger.debug("Setting signal handlers")
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if os.name == 'posix':
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signal.signal(signal.SIGINT, self.signal_handler)
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signal.signal(signal.SIGTERM, self.signal_handler)
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signal.signal(signal.SIGCHLD, self.signal_handler)
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signal.signal(signal.SIGHUP, self.signal_handler)
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signal.signal(signal.SIGQUIT, dumpstacks)
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elif os.name == 'nt':
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import win32api
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win32api.SetConsoleCtrlHandler(lambda sig: signal_handler(sig, None), 1)
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self.cron_spawn()
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self.http_spawn()
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def stop(self):
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""" Shutdown the WSGI server. Wait for non deamon threads.
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"""
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_logger.info("Initiating shutdown")
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_logger.info("Hit CTRL-C again or send a second signal to force the shutdown.")
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self.httpd.shutdown()
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self.close_socket(self.httpd.socket)
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# Manually join() all threads before calling sys.exit() to allow a second signal
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# to trigger _force_quit() in case some non-daemon threads won't exit cleanly.
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# threading.Thread.join() should not mask signals (at least in python 2.5).
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me = threading.currentThread()
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_logger.debug('current thread: %r', me)
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for thread in threading.enumerate():
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_logger.debug('process %r (%r)', thread, thread.isDaemon())
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if thread != me and not thread.isDaemon() and thread.ident != self.main_thread_id:
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while thread.isAlive():
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_logger.debug('join and sleep')
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# Need a busyloop here as thread.join() masks signals
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# and would prevent the forced shutdown.
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thread.join(0.05)
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time.sleep(0.05)
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_logger.debug('--')
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openerp.modules.registry.RegistryManager.delete_all()
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logging.shutdown()
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def run(self):
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""" Start the http server and the cron thread then wait for a signal.
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The first SIGINT or SIGTERM signal will initiate a graceful shutdown while
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a second one if any will force an immediate exit.
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"""
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self.start()
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# Wait for a first signal to be handled. (time.sleep will be interrupted
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# by the signal handler.) The try/except is for the win32 case.
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try:
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while self.quit_signals_received == 0:
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time.sleep(60)
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except KeyboardInterrupt:
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pass
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self.stop()
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|
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def reload(self):
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os.kill(self.pid, signal.SIGHUP)
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|
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class GeventServer(CommonServer):
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def __init__(self, app):
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super(GeventServer, self).__init__(app)
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self.port = config['longpolling_port']
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self.httpd = None
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def watch_parent(self, beat=4):
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import gevent
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ppid = os.getppid()
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while True:
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if ppid != os.getppid():
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pid = os.getpid()
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_logger.info("LongPolling (%s) Parent changed", pid)
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# suicide !!
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os.kill(pid, signal.SIGTERM)
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return
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gevent.sleep(beat)
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def start(self):
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import gevent
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from gevent.wsgi import WSGIServer
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if os.name == 'posix':
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signal.signal(signal.SIGQUIT, dumpstacks)
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gevent.spawn(self.watch_parent)
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self.httpd = WSGIServer((self.interface, self.port), self.app)
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_logger.info('Evented Service (longpolling) running on %s:%s', self.interface, self.port)
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self.httpd.serve_forever()
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|
|
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def stop(self):
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import gevent
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self.httpd.stop()
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gevent.shutdown()
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|
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def run(self):
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self.start()
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self.stop()
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|
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class PreforkServer(CommonServer):
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""" Multiprocessing inspired by (g)unicorn.
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PreforkServer (aka Multicorn) currently uses accept(2) as dispatching
|
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method between workers but we plan to replace it by a more intelligent
|
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dispatcher to will parse the first HTTP request line.
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"""
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def __init__(self, app):
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# config
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self.address = (config['xmlrpc_interface'] or '0.0.0.0', config['xmlrpc_port'])
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self.population = config['workers']
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self.timeout = config['limit_time_real']
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self.limit_request = config['limit_request']
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# working vars
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self.beat = 4
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self.app = app
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self.pid = os.getpid()
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self.socket = None
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self.workers_http = {}
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self.workers_cron = {}
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self.workers = {}
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self.generation = 0
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self.queue = []
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self.long_polling_pid = None
|
|
|
|
def pipe_new(self):
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pipe = os.pipe()
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for fd in pipe:
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# non_blocking
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flags = fcntl.fcntl(fd, fcntl.F_GETFL) | os.O_NONBLOCK
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fcntl.fcntl(fd, fcntl.F_SETFL, flags)
|
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# close_on_exec
|
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flags = fcntl.fcntl(fd, fcntl.F_GETFD) | fcntl.FD_CLOEXEC
|
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fcntl.fcntl(fd, fcntl.F_SETFD, flags)
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return pipe
|
|
|
|
def pipe_ping(self, pipe):
|
|
try:
|
|
os.write(pipe[1], '.')
|
|
except IOError, e:
|
|
if e.errno not in [errno.EAGAIN, errno.EINTR]:
|
|
raise
|
|
|
|
def signal_handler(self, sig, frame):
|
|
if len(self.queue) < 5 or sig == signal.SIGCHLD:
|
|
self.queue.append(sig)
|
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self.pipe_ping(self.pipe)
|
|
else:
|
|
_logger.warn("Dropping signal: %s", sig)
|
|
|
|
def worker_spawn(self, klass, workers_registry):
|
|
self.generation += 1
|
|
worker = klass(self)
|
|
pid = os.fork()
|
|
if pid != 0:
|
|
worker.pid = pid
|
|
self.workers[pid] = worker
|
|
workers_registry[pid] = worker
|
|
return worker
|
|
else:
|
|
worker.run()
|
|
sys.exit(0)
|
|
|
|
def long_polling_spawn(self):
|
|
nargs = stripped_sys_argv()
|
|
cmd = nargs[0]
|
|
cmd = os.path.join(os.path.dirname(cmd), "openerp-gevent")
|
|
nargs[0] = cmd
|
|
popen = subprocess.Popen(nargs)
|
|
self.long_polling_pid = popen.pid
|
|
|
|
def worker_pop(self, pid):
|
|
if pid in self.workers:
|
|
_logger.debug("Worker (%s) unregistered",pid)
|
|
try:
|
|
self.workers_http.pop(pid,None)
|
|
self.workers_cron.pop(pid,None)
|
|
u = self.workers.pop(pid)
|
|
u.close()
|
|
except OSError:
|
|
return
|
|
|
|
def worker_kill(self, pid, sig):
|
|
try:
|
|
os.kill(pid, sig)
|
|
except OSError, e:
|
|
if e.errno == errno.ESRCH:
|
|
self.worker_pop(pid)
|
|
|
|
def process_signals(self):
|
|
while len(self.queue):
|
|
sig = self.queue.pop(0)
|
|
if sig in [signal.SIGINT,signal.SIGTERM]:
|
|
raise KeyboardInterrupt
|
|
elif sig == signal.SIGHUP:
|
|
# restart on kill -HUP
|
|
openerp.phoenix = True
|
|
raise KeyboardInterrupt
|
|
elif sig == signal.SIGQUIT:
|
|
# dump stacks on kill -3
|
|
self.dumpstacks()
|
|
elif sig == signal.SIGTTIN:
|
|
# increase number of workers
|
|
self.population += 1
|
|
elif sig == signal.SIGTTOU:
|
|
# decrease number of workers
|
|
self.population -= 1
|
|
|
|
def process_zombie(self):
|
|
# reap dead workers
|
|
while 1:
|
|
try:
|
|
wpid, status = os.waitpid(-1, os.WNOHANG)
|
|
if not wpid:
|
|
break
|
|
if (status >> 8) == 3:
|
|
msg = "Critial worker error (%s)"
|
|
_logger.critical(msg, wpid)
|
|
raise Exception(msg % wpid)
|
|
self.worker_pop(wpid)
|
|
except OSError, e:
|
|
if e.errno == errno.ECHILD:
|
|
break
|
|
raise
|
|
|
|
def process_timeout(self):
|
|
now = time.time()
|
|
for (pid, worker) in self.workers.items():
|
|
if (worker.watchdog_timeout is not None) and \
|
|
(now - worker.watchdog_time >= worker.watchdog_timeout):
|
|
_logger.error("Worker (%s) timeout", pid)
|
|
self.worker_kill(pid, signal.SIGKILL)
|
|
|
|
def process_spawn(self):
|
|
while len(self.workers_http) < self.population:
|
|
self.worker_spawn(WorkerHTTP, self.workers_http)
|
|
while len(self.workers_cron) < config['max_cron_threads']:
|
|
self.worker_spawn(WorkerCron, self.workers_cron)
|
|
if not self.long_polling_pid:
|
|
self.long_polling_spawn()
|
|
|
|
def sleep(self):
|
|
try:
|
|
# map of fd -> worker
|
|
fds = dict([(w.watchdog_pipe[0],w) for k,w in self.workers.items()])
|
|
fd_in = fds.keys() + [self.pipe[0]]
|
|
# check for ping or internal wakeups
|
|
ready = select.select(fd_in, [], [], self.beat)
|
|
# update worker watchdogs
|
|
for fd in ready[0]:
|
|
if fd in fds:
|
|
fds[fd].watchdog_time = time.time()
|
|
try:
|
|
# empty pipe
|
|
while os.read(fd, 1):
|
|
pass
|
|
except OSError, e:
|
|
if e.errno not in [errno.EAGAIN]:
|
|
raise
|
|
except select.error, e:
|
|
if e[0] not in [errno.EINTR]:
|
|
raise
|
|
|
|
def start(self):
|
|
# Empty the cursor pool, we dont want them to be shared among forked workers.
|
|
openerp.sql_db.close_all()
|
|
# wakeup pipe, python doesnt throw EINTR when a syscall is interrupted
|
|
# by a signal simulating a pseudo SA_RESTART. We write to a pipe in the
|
|
# signal handler to overcome this behaviour
|
|
self.pipe = self.pipe_new()
|
|
# set signal handlers
|
|
signal.signal(signal.SIGINT, self.signal_handler)
|
|
signal.signal(signal.SIGTERM, self.signal_handler)
|
|
signal.signal(signal.SIGHUP, self.signal_handler)
|
|
signal.signal(signal.SIGCHLD, self.signal_handler)
|
|
signal.signal(signal.SIGTTIN, self.signal_handler)
|
|
signal.signal(signal.SIGTTOU, self.signal_handler)
|
|
signal.signal(signal.SIGQUIT, dumpstacks)
|
|
|
|
# listen to socket
|
|
self.socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
|
|
self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
|
|
self.socket.setblocking(0)
|
|
self.socket.bind(self.address)
|
|
self.socket.listen(8*self.population)
|
|
|
|
def stop(self, graceful=True):
|
|
if self.long_polling_pid is not None:
|
|
self.worker_kill(self.long_polling_pid, signal.SIGKILL) # FIXME make longpolling process handle SIGTERM correctly
|
|
self.long_polling_pid = None
|
|
if graceful:
|
|
_logger.info("Stopping gracefully")
|
|
limit = time.time() + self.timeout
|
|
for pid in self.workers.keys():
|
|
self.worker_kill(pid, signal.SIGINT)
|
|
while self.workers and time.time() < limit:
|
|
try:
|
|
self.process_signals()
|
|
except KeyboardInterrupt:
|
|
_logger.info("Forced shutdown.")
|
|
break
|
|
self.process_zombie()
|
|
time.sleep(0.1)
|
|
else:
|
|
_logger.info("Stopping forcefully")
|
|
for pid in self.workers.keys():
|
|
self.worker_kill(pid, signal.SIGTERM)
|
|
self.socket.close()
|
|
|
|
def run(self):
|
|
self.start()
|
|
_logger.debug("Multiprocess starting")
|
|
while 1:
|
|
try:
|
|
#_logger.debug("Multiprocess beat (%s)",time.time())
|
|
self.process_signals()
|
|
self.process_zombie()
|
|
self.process_timeout()
|
|
self.process_spawn()
|
|
self.sleep()
|
|
except KeyboardInterrupt:
|
|
_logger.debug("Multiprocess clean stop")
|
|
self.stop()
|
|
break
|
|
except Exception,e:
|
|
_logger.exception(e)
|
|
self.stop(False)
|
|
sys.exit(-1)
|
|
|
|
class Worker(object):
|
|
""" Workers """
|
|
def __init__(self, multi):
|
|
self.multi = multi
|
|
self.watchdog_time = time.time()
|
|
self.watchdog_pipe = multi.pipe_new()
|
|
# Can be set to None if no watchdog is desired.
|
|
self.watchdog_timeout = multi.timeout
|
|
self.ppid = os.getpid()
|
|
self.pid = None
|
|
self.alive = True
|
|
# should we rename into lifetime ?
|
|
self.request_max = multi.limit_request
|
|
self.request_count = 0
|
|
|
|
def setproctitle(self, title=""):
|
|
setproctitle('openerp: %s %s %s' % (self.__class__.__name__, self.pid, title))
|
|
|
|
def close(self):
|
|
os.close(self.watchdog_pipe[0])
|
|
os.close(self.watchdog_pipe[1])
|
|
|
|
def signal_handler(self, sig, frame):
|
|
self.alive = False
|
|
|
|
def sleep(self):
|
|
try:
|
|
ret = select.select([self.multi.socket], [], [], self.multi.beat)
|
|
except select.error, e:
|
|
if e[0] not in [errno.EINTR]:
|
|
raise
|
|
|
|
def process_limit(self):
|
|
# If our parent changed sucide
|
|
if self.ppid != os.getppid():
|
|
_logger.info("Worker (%s) Parent changed", self.pid)
|
|
self.alive = False
|
|
# check for lifetime
|
|
if self.request_count >= self.request_max:
|
|
_logger.info("Worker (%d) max request (%s) reached.", self.pid, self.request_count)
|
|
self.alive = False
|
|
# Reset the worker if it consumes too much memory (e.g. caused by a memory leak).
|
|
rss, vms = memory_info(psutil.Process(os.getpid()))
|
|
if vms > config['limit_memory_soft']:
|
|
_logger.info('Worker (%d) virtual memory limit (%s) reached.', self.pid, vms)
|
|
self.alive = False # Commit suicide after the request.
|
|
|
|
# VMS and RLIMIT_AS are the same thing: virtual memory, a.k.a. address space
|
|
soft, hard = resource.getrlimit(resource.RLIMIT_AS)
|
|
resource.setrlimit(resource.RLIMIT_AS, (config['limit_memory_hard'], hard))
|
|
|
|
# SIGXCPU (exceeded CPU time) signal handler will raise an exception.
|
|
r = resource.getrusage(resource.RUSAGE_SELF)
|
|
cpu_time = r.ru_utime + r.ru_stime
|
|
def time_expired(n, stack):
|
|
_logger.info('Worker (%d) CPU time limit (%s) reached.', config['limit_time_cpu'])
|
|
# We dont suicide in such case
|
|
raise Exception('CPU time limit exceeded.')
|
|
signal.signal(signal.SIGXCPU, time_expired)
|
|
soft, hard = resource.getrlimit(resource.RLIMIT_CPU)
|
|
resource.setrlimit(resource.RLIMIT_CPU, (cpu_time + config['limit_time_cpu'], hard))
|
|
|
|
def process_work(self):
|
|
pass
|
|
|
|
def start(self):
|
|
self.pid = os.getpid()
|
|
self.setproctitle()
|
|
_logger.info("Worker %s (%s) alive", self.__class__.__name__, self.pid)
|
|
# Reseed the random number generator
|
|
random.seed()
|
|
# Prevent fd inherientence close_on_exec
|
|
flags = fcntl.fcntl(self.multi.socket, fcntl.F_GETFD) | fcntl.FD_CLOEXEC
|
|
fcntl.fcntl(self.multi.socket, fcntl.F_SETFD, flags)
|
|
# reset blocking status
|
|
self.multi.socket.setblocking(0)
|
|
signal.signal(signal.SIGINT, self.signal_handler)
|
|
signal.signal(signal.SIGTERM, signal.SIG_DFL)
|
|
signal.signal(signal.SIGCHLD, signal.SIG_DFL)
|
|
|
|
def stop(self):
|
|
pass
|
|
|
|
def run(self):
|
|
try:
|
|
self.start()
|
|
while self.alive:
|
|
self.process_limit()
|
|
self.multi.pipe_ping(self.watchdog_pipe)
|
|
self.sleep()
|
|
self.process_work()
|
|
_logger.info("Worker (%s) exiting. request_count: %s.", self.pid, self.request_count)
|
|
self.stop()
|
|
except Exception,e:
|
|
_logger.exception("Worker (%s) Exception occured, exiting..." % self.pid)
|
|
# should we use 3 to abort everything ?
|
|
sys.exit(1)
|
|
|
|
class WorkerHTTP(Worker):
|
|
""" HTTP Request workers """
|
|
def process_request(self, client, addr):
|
|
client.setblocking(1)
|
|
client.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
|
|
# Prevent fd inherientence close_on_exec
|
|
flags = fcntl.fcntl(client, fcntl.F_GETFD) | fcntl.FD_CLOEXEC
|
|
fcntl.fcntl(client, fcntl.F_SETFD, flags)
|
|
# do request using BaseWSGIServerNoBind monkey patched with socket
|
|
self.server.socket = client
|
|
# tolerate broken pipe when the http client closes the socket before
|
|
# receiving the full reply
|
|
try:
|
|
self.server.process_request(client,addr)
|
|
except IOError, e:
|
|
if e.errno != errno.EPIPE:
|
|
raise
|
|
self.request_count += 1
|
|
|
|
def process_work(self):
|
|
try:
|
|
client, addr = self.multi.socket.accept()
|
|
self.process_request(client, addr)
|
|
except socket.error, e:
|
|
if e[0] not in (errno.EAGAIN, errno.ECONNABORTED):
|
|
raise
|
|
|
|
def start(self):
|
|
Worker.start(self)
|
|
self.server = BaseWSGIServerNoBind(self.multi.app)
|
|
|
|
class WorkerCron(Worker):
|
|
""" Cron workers """
|
|
|
|
def __init__(self, multi):
|
|
super(WorkerCron, self).__init__(multi)
|
|
# process_work() below process a single database per call.
|
|
# The variable db_index is keeping track of the next database to
|
|
# process.
|
|
self.db_index = 0
|
|
|
|
def sleep(self):
|
|
# Really sleep once all the databases have been processed.
|
|
if self.db_index == 0:
|
|
interval = SLEEP_INTERVAL + self.pid % 10 # chorus effect
|
|
time.sleep(interval)
|
|
|
|
def _db_list(self):
|
|
if config['db_name']:
|
|
db_names = config['db_name'].split(',')
|
|
else:
|
|
db_names = openerp.service.db.exp_list(True)
|
|
return db_names
|
|
|
|
def process_work(self):
|
|
rpc_request = logging.getLogger('openerp.netsvc.rpc.request')
|
|
rpc_request_flag = rpc_request.isEnabledFor(logging.DEBUG)
|
|
_logger.debug("WorkerCron (%s) polling for jobs", self.pid)
|
|
db_names = self._db_list()
|
|
if len(db_names):
|
|
self.db_index = (self.db_index + 1) % len(db_names)
|
|
db_name = db_names[self.db_index]
|
|
self.setproctitle(db_name)
|
|
if rpc_request_flag:
|
|
start_time = time.time()
|
|
start_rss, start_vms = memory_info(psutil.Process(os.getpid()))
|
|
|
|
import openerp.addons.base as base
|
|
base.ir.ir_cron.ir_cron._acquire_job(db_name)
|
|
openerp.modules.registry.RegistryManager.delete(db_name)
|
|
|
|
# dont keep cursors in multi database mode
|
|
if len(db_names) > 1:
|
|
openerp.sql_db.close_db(db_name)
|
|
if rpc_request_flag:
|
|
end_time = time.time()
|
|
end_rss, end_vms = memory_info(psutil.Process(os.getpid()))
|
|
logline = '%s time:%.3fs mem: %sk -> %sk (diff: %sk)' % (db_name, end_time - start_time, start_vms / 1024, end_vms / 1024, (end_vms - start_vms)/1024)
|
|
_logger.debug("WorkerCron (%s) %s", self.pid, logline)
|
|
|
|
self.request_count += 1
|
|
if self.request_count >= self.request_max and self.request_max < len(db_names):
|
|
_logger.error("There are more dabatases to process than allowed "
|
|
"by the `limit_request` configuration variable: %s more.",
|
|
len(db_names) - self.request_max)
|
|
else:
|
|
self.db_index = 0
|
|
|
|
def start(self):
|
|
os.nice(10) # mommy always told me to be nice with others...
|
|
Worker.start(self)
|
|
self.multi.socket.close()
|
|
|
|
#----------------------------------------------------------
|
|
# start/stop public api
|
|
#----------------------------------------------------------
|
|
|
|
server = None
|
|
|
|
def load_server_wide_modules():
|
|
for m in openerp.conf.server_wide_modules:
|
|
try:
|
|
openerp.modules.module.load_openerp_module(m)
|
|
except Exception:
|
|
msg = ''
|
|
if m == 'web':
|
|
msg = """
|
|
The `web` module is provided by the addons found in the `openerp-web` project.
|
|
Maybe you forgot to add those addons in your addons_path configuration."""
|
|
_logger.exception('Failed to load server-wide module `%s`.%s', m, msg)
|
|
|
|
def _reexec(updated_modules=None):
|
|
"""reexecute openerp-server process with (nearly) the same arguments"""
|
|
if openerp.tools.osutil.is_running_as_nt_service():
|
|
subprocess.call('net stop {0} && net start {0}'.format(nt_service_name), shell=True)
|
|
exe = os.path.basename(sys.executable)
|
|
args = stripped_sys_argv()
|
|
args += ["-u", ','.join(updated_modules)]
|
|
if not args or args[0] != exe:
|
|
args.insert(0, exe)
|
|
os.execv(sys.executable, args)
|
|
|
|
def start():
|
|
""" Start the openerp http server and cron processor.
|
|
"""
|
|
global server
|
|
load_server_wide_modules()
|
|
if openerp.evented:
|
|
server = GeventServer(openerp.service.wsgi_server.application)
|
|
elif config['workers']:
|
|
server = PreforkServer(openerp.service.wsgi_server.application)
|
|
else:
|
|
server = ThreadedServer(openerp.service.wsgi_server.application)
|
|
|
|
if config['auto_reload']:
|
|
autoreload = AutoReload(server)
|
|
autoreload.run()
|
|
|
|
server.run()
|
|
|
|
# like the legend of the phoenix, all ends with beginnings
|
|
if getattr(openerp, 'phoenix', False):
|
|
modules = []
|
|
if config['auto_reload']:
|
|
modules = autoreload.modules.keys()
|
|
_reexec(modules)
|
|
sys.exit(0)
|
|
|
|
def restart():
|
|
""" Restart the server
|
|
"""
|
|
if os.name == 'nt':
|
|
# run in a thread to let the current thread return response to the caller.
|
|
threading.Thread(target=_reexec).start()
|
|
else:
|
|
os.kill(server.pid, signal.SIGHUP)
|
|
|
|
# vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
|