def __init__(self, context, options):
self._instances.append(self)
self.context = context
self.options = options
self.mongodb = AsyncConnection(options.mongo_uri)
# External sockets
src_sock = context.socket(zmq.PUSH)
sink_sock = context.socket(zmq.PULL)
self._cli_sock = context.socket(zmq.XREP)
self._cli_sock.bind(options.zmr['req_bind'])
# Load some options, bind some sockets
self._uri = options.zmr['worker_uri']
self._src_port = options.zmr.get('src_port', None)
self._sink_port = options.zmr.get('sink_port', None)
if self._src_port:
src_sock.bind('%s:%s' % (self._uri, self._src_port))
else:
self._src_port = src_sock.bind_to_random_port(self._uri)
if self._sink_port:
sink_sock.bind('%s:%s' % (self._uri, self._sink_port))
else:
self._sink_port = sink_sock.bind_to_random_port(self._uri)
#Job Manager
self.job_manager = JobManager(
src_sock, sink_sock,
options.zmr['outstanding_chunks'],
options.zmr['max_chunk_timeout'])
# Internal request handling sockets
self._req_worker_sock = context.socket(zmq.XREQ)
self._req_worker_sock.bind('inproc://req-workers')
self._terminate = False
class ZMRRouter(object):
_instances = []
def __init__(self, context, options):
self._instances.append(self)
self.context = context
self.options = options
self.mongodb = AsyncConnection(options.mongo_uri)
# External sockets
src_sock = context.socket(zmq.PUSH)
sink_sock = context.socket(zmq.PULL)
self._cli_sock = context.socket(zmq.XREP)
self._cli_sock.bind(options.zmr['req_bind'])
# Load some options, bind some sockets
self._uri = options.zmr['worker_uri']
self._src_port = options.zmr.get('src_port', None)
self._sink_port = options.zmr.get('sink_port', None)
if self._src_port:
src_sock.bind('%s:%s' % (self._uri, self._src_port))
else:
self._src_port = src_sock.bind_to_random_port(self._uri)
if self._sink_port:
sink_sock.bind('%s:%s' % (self._uri, self._sink_port))
else:
self._sink_port = sink_sock.bind_to_random_port(self._uri)
#Job Manager
self.job_manager = JobManager(
src_sock, sink_sock,
options.zmr['outstanding_chunks'],
options.zmr['max_chunk_timeout'])
# Internal request handling sockets
self._req_worker_sock = context.socket(zmq.XREQ)
self._req_worker_sock.bind('inproc://req-workers')
self._terminate = False
def start(self):
# gevent.spawn(self.sink_handler)
for i in xrange(self.options.zmr['request_greenlets']):
gevent.spawn(self.request_handler, i, self.context, 'inproc://req-workers')
util.gevent_queue(self._cli_sock, self._req_worker_sock)
def serve_forever(self):
while True:
if self._terminate: break
gevent.sleep(1)
def request_handler(self, i, context, uri):
sock = context.socket(zmq.REP)
sock.connect(uri)
while True:
try:
obj = util.recv_bson(sock)
log.debug('Request %s in %s', obj, i)
command = obj.get('$command')
log.debug('Req %s in %s', command, i)
if command == 'echo':
util.send_bson(sock, dict(message=obj))
elif command == 'terminate':
self._terminate = True
elif command in ('mapreduce', 'xmapreduce', 'basic'):
job = Job.from_request(self, obj)
self.job_manager.alloc_job(job)
log.debug('Start job %s', job.id)
if obj.get('wait'):
job.run()
self.job_manager.dealloc_job(job.id)
else:
gevent.spawn(util.ending_request(self.mongodb), job.run)
util.send_bson(sock, dict(job_id=job.id, status=job.status))
continue
elif command == 'status':
try:
jid = obj['job_id']
status = self.job_manager.job_status(jid)
util.send_bson(sock, dict(job_id=jid, status=status))
if status['state'] in ('complete', 'error'):
self.job_manager.dealloc_job(jid)
except:
log.exception('Error getting status for job')
util.send_bson(sock, dict(
job_id=obj['job_id'], status=dict(
state='UNKNOWN')))
continue
elif command == 'config':
util.send_bson(sock, dict(
self.options.zmr,
src_port=self._src_port,
sink_port=self._sink_port))
except:
log.exception('Error in request handler')
util.send_bson(sock, dict(error=traceback.format_exc()))
continue
finally:
self.mongodb.end_request()
