class GJZookeeper(object):
ZK_HOST = "localhost:2181"
ROOT = "/app"
WORKERS_PATH = join(ROOT, "workers")
MASTERS_NUM = 1
TIMEOUT = 10000
def __init__(self, verbose = True):
self.VERBOSE = verbose
self.path = None
self.is_master = True
self.zk = ZKClient(self.ZK_HOST, timeout = self.TIMEOUT)
self.say("login ok!")
# init
self.__init_zk()
# register
self.register()
def __init_zk(self):
"""
create the zookeeper node if not exist
"""
nodes = (self.ROOT, self.WORKERS_PATH)
for node in nodes:
if not self.zk.exists(node):
try:
self.zk.create(node, "")
except:
pass
def register(self):
@watchmethod
def watcher(event):
self.say("first watcher")
self.path = self.zk.create(self.WORKERS_PATH + "/worker", "1", flags=zookeeper.EPHEMERAL | zookeeper.SEQUENCE)
if not self.zk.exists(self.path, watcher):
print "not exist"
self.zk.set(self.path, "3", -1)
self.zk.exists(self.path, watcher)
self.zk.delete(self.path, -1)
print "_________________________"
def say(self, msg):
"""
print messages to screen
"""
if self.VERBOSE:
if self.path:
log.info("[ %s ] %s" % (self.path , msg))
else:
log.info(msg)
def set_tcp_keepalive(sock, opts=None):
# Warn if ZMQ < 3.2
try:
zmq_version_info = zmq.zmq_version_info()
except AttributeError:
# PyZMQ <= 2.1.9 does not have zmq_version_info, fall back to
# using zmq.zmq_version() and build a version info tuple.
zmq_version_info = tuple(
[int(x) for x in zmq.zmq_version().split('.')]
)
if zmq_version_info < (3, 2):
log.warning(
'You have a version of ZMQ less than ZMQ 3.2! There are '
'known connection keep-alive issues with ZMQ < 3.2 which '
'may result in loss of contact with minions. Please '
'upgrade your ZMQ!'
)
####
# try:
# ip=socket.gethostbyname(socket.gethostname())
# if ip == "127.0.0.1":
# raise Exception("127.0.0.1")
# except Exception,e:
# (status,ip) = commands.getstatusoutput("/sbin/ifconfig -a|grep inet|grep -v 127.0.0.1|grep -v inet6|awk '{print $2}'|tr -d 'addr:'")
# ip = ip
if opts['ha'] == True:
while True:
time.sleep(5)
try:
sys.path.append("/usr/lib/python2.7/site-packages/salt")
from zkclient import ZKClient, zookeeper, watchmethod
zk = ZKClient('172.16.163.14:2181',1000)
if zk.exists('/broker'):
value = zk.get('/broker')
logging.error(str(value[0]))
if value[0] == opts['id']:
break
else:
zk.create('/broker')
zk.set('/broker',data='%s'%opts['id'])
logging.error("create the zk path is successful !")
continue
except Exception,e:
logging.error(str(e))
continue
class ZookeeperStore(object):
TIMEOUT = 1000
def __init__(self,
verbose=True,
database='test',
table='targets',
zkhost='127.0.0.1:32181'):
self.VERBOSE = verbose
self.path = None
self.ZK_HOST = zkhost
self.database = "/" + database
self.table = os.path.join(self.database, table)
self.zk = ZKClient(self.ZK_HOST, timeout=self.TIMEOUT)
self.say("login ok")
self._init_zk()
def __del__(self):
self.zk.close()
def _init_zk(self):
nodes = (self.database, self.table)
for node in nodes:
if not self.zk.exists(node):
try:
self.zk.create(node, "")
except:
pass
def create(self, path, msg, flags=0):
msg = self.encode(msg)
self.path = os.path.join(self.table, path)
nodes = self.path.split("/")
# FIXME
for i in range(4, len(nodes)):
node = "/".join(nodes[:i])
if not self.zk.exists(node):
try:
self.zk.create(node, "")
except:
pass
if not self.zk.exists(self.path):
self.path = self.zk.create(self.path, msg, flags=flags)
else:
self.zk.set(self.path, msg)
#self.path = os.path.basename(self.path)
self.say("register ok! I'm %s" % self.path)
def get_children(self, path=""):
if not path:
path = self.table
children = self.zk.get_children(path)
return children
def get(self, node):
msg = self.zk.get(node)
return msg
def decode(self, obj):
return obj
def encode(self, msg):
return msg
def say(self, msg):
if self.VERBOSE:
if self.path:
log.info(msg)
else:
log.info(msg)
class ZookeeperStore(object):
ZK_HOST = "127.0.0.1:32181"
TIMEOUT = 1000
def __init__(self, verbose = True, database='/test', table='targets'):
self.VERBOSE = verbose
self.path = None
self.database = database
self.table = os.path.join(self.database, table)
self.zk = ZKClient(self.ZK_HOST, timeout = self.TIMEOUT)
self.say("login ok")
self._init_zk()
def __del__(self):
self.zk.close()
def _init_zk(self):
nodes = (self.database, self.table)
for node in nodes:
if not self.zk.exists(node):
try:
self.zk.create(node, "")
except:
pass
def create(self, path, msg, flags=0):
msg = self.encode(msg)
self.path = os.path.join(self.table, path)
nodes = self.path.split("/")
# FIXME
for i in range(4,len(nodes)):
node = "/".join(nodes[:i])
if not self.zk.exists(node):
try:
self.zk.create(node, "")
except:
pass
if not self.zk.exists(self.path):
self.path = self.zk.create(self.path, msg, flags=flags)
else:
self.zk.set(self.path, msg)
#self.path = os.path.basename(self.path)
self.say("register ok! I'm %s" % self.path)
def get_children(self, path=""):
if not path:
path = self.table
children = self.zk.get_children(path)
return children
def get(self, node):
msg = self.zk.get(node)
return msg
def decode(self, obj):
return obj
def encode(self, msg):
return msg
def say(self, msg):
if self.VERBOSE:
if self.path:
log.info(msg)
else:
log.info(msg)
raw_input(">>")
l = zk.get("/work")
exit()
try:
l = zk.get("/work/nonode")
except zookeeper.NoNodeException, reason:
print reason
else:
print l
exit()
print l[1]['version']
try:
l = zk.set("/work", "123", l[1]['version'])
except zookeeper.BadVersionException, reason:
print reason
print l
exit()
try:
l = zk.create("/abc", "123", 0)
except:
print "create fail"
exit()
while 1:
time.sleep(1)
