def start(self, isMaster, environ={}, isLocal=False):
if self.started:
return
logger.debug("start env in %s: %s %s", os.getpid(), isMaster, environ)
self.isMaster = isMaster
self.isLocal = isLocal
if isMaster:
roots = conf.DPARK_WORK_DIR
if isinstance(roots, str):
roots = roots.split(",")
if isLocal:
root = roots[0] # for local mode
if not os.path.exists(root):
os.mkdir(root, 0777)
os.chmod(root, 0777) # because of umask
name = "%s-%s-%d" % (time.strftime("%Y%m%d-%H%M%S"), socket.gethostname(), os.getpid())
self.workdir = [os.path.join(root, name) for root in roots]
for d in self.workdir:
if not os.path.exists(d):
try:
os.makedirs(d)
except OSError:
pass
self.environ["WORKDIR"] = self.workdir
self.environ["COMPRESS"] = util.COMPRESS
else:
self.environ.update(environ)
if self.environ["COMPRESS"] != util.COMPRESS:
raise Exception("no %s available" % self.environ["COMPRESS"])
self.ctx = zmq.Context()
from dpark.cache import CacheTracker, LocalCacheTracker
if isLocal:
self.cacheTracker = LocalCacheTracker(isMaster)
else:
self.cacheTracker = CacheTracker(isMaster)
from dpark.shuffle import LocalFileShuffle, MapOutputTracker, LocalMapOutputTracker
LocalFileShuffle.initialize(isMaster)
if isLocal:
self.mapOutputTracker = LocalMapOutputTracker(isMaster)
else:
self.mapOutputTracker = MapOutputTracker(isMaster)
from dpark.shuffle import SimpleShuffleFetcher, ParallelShuffleFetcher
# self.shuffleFetcher = SimpleShuffleFetcher()
self.shuffleFetcher = ParallelShuffleFetcher(2)
from dpark.broadcast import TheBroadcast
TheBroadcast.initialize(isMaster)
self.started = True
logger.debug("env started")
def stop(self):
if not getattr(self, 'started', False):
return
logger.debug("stop env in %s", os.getpid())
self.shuffleFetcher.stop()
self.cacheTracker.stop()
self.mapOutputTracker.stop()
from dpark.broadcast import TheBroadcast
TheBroadcast.shutdown()
logger.debug("cleaning workdir ...")
for d in self.workdir:
shutil.rmtree(d, True)
logger.debug("done.")
self.started = False
def stop(self):
if not getattr(self, 'started', False):
return
logger.debug("stop env in %s", os.getpid())
self.shuffleFetcher.stop()
self.cacheTracker.stop()
self.mapOutputTracker.stop()
if self.isMaster:
self.trackerServer.stop()
from dpark.broadcast import TheBroadcast
TheBroadcast.shutdown()
logger.debug("cleaning workdir ...")
for d in self.workdir:
shutil.rmtree(d, True)
logger.debug("done.")
self.started = False
def broadcast(self, v):
self.start()
from dpark.broadcast import TheBroadcast
return TheBroadcast(v, self.isLocal)
def start(self, isMaster, environ={}, isLocal=False):
if self.started:
return
logger.debug("start env in %s: %s %s", os.getpid(), isMaster, environ)
self.isMaster = isMaster
self.isLocal = isLocal
if isMaster:
roots = conf.DPARK_WORK_DIR
if isinstance(roots, str):
roots = roots.split(',')
if isLocal:
root = roots[0] # for local mode
if not os.path.exists(root):
os.mkdir(root, 0777)
os.chmod(root, 0777) # because of umask
name = '%s-%s-%d' % (time.strftime("%Y%m%d-%H%M%S"),
socket.gethostname(), os.getpid())
self.workdir = [os.path.join(root, name) for root in roots]
for d in self.workdir:
if not os.path.exists(d):
try:
os.makedirs(d)
except OSError:
pass
self.environ['WORKDIR'] = self.workdir
self.environ['COMPRESS'] = util.COMPRESS
else:
self.environ.update(environ)
if self.environ['COMPRESS'] != util.COMPRESS:
raise Exception("no %s available" % self.environ['COMPRESS'])
self.ctx = zmq.Context()
from dpark.tracker import TrackerServer, TrackerClient
if isMaster:
self.trackerServer = TrackerServer()
self.trackerServer.start()
addr = self.trackerServer.addr
env.register('TrackerAddr', addr)
else:
addr = env.get('TrackerAddr')
self.trackerClient = TrackerClient(addr)
from dpark.cache import CacheTracker, LocalCacheTracker
if isLocal:
self.cacheTracker = LocalCacheTracker()
else:
self.cacheTracker = CacheTracker()
from dpark.shuffle import LocalFileShuffle, MapOutputTracker, LocalMapOutputTracker
LocalFileShuffle.initialize(isMaster)
if isLocal:
self.mapOutputTracker = LocalMapOutputTracker()
else:
self.mapOutputTracker = MapOutputTracker()
from dpark.shuffle import SimpleShuffleFetcher, ParallelShuffleFetcher
#self.shuffleFetcher = SimpleShuffleFetcher()
self.shuffleFetcher = ParallelShuffleFetcher(2)
from dpark.broadcast import TheBroadcast
TheBroadcast.initialize(isMaster)
self.started = True
logger.debug("env started")
