def __init__(self):
'''
Constructor
'''
self.zkaddress, self.zkport = get_zk_address()
self.retry = KazooRetry(max_tries=3, delay=0.5)
self.zk = KazooClient(hosts=self.zkaddress+':'+str(self.zkport), connection_retry=self.retry)
self.zk.start()
#self.zk = self.ensureinstance()
logging.info("instance zk client (%s:%s)" % (self.zkaddress, self.zkport))
def __init__(self):
'''
Constructor
'''
self.zkaddress, self.zkport = get_zk_address()
if "" != self.zkaddress and "" != self.zkport:
self.zk = KazooClient(hosts=self.zkaddress + ':' +
str(self.zkport),
connection_retry=self.DEFAULT_RETRY_POLICY,
timeout=20)
self.zk.add_listener(self.listener)
self.zk.start()
logging.info("instance zk client (%s:%s)" %
(self.zkaddress, self.zkport))
def _zk_singleton(*args, **kw):
zk_addr, zk_port = get_zk_address()
if not (zk_addr and zk_port):
raise CommonException(
'zookeeper address and port are not written!')
if cls not in instances:
instances[cls] = cls(*args, **kw)
if instances[cls].zk is None:
instances[cls] = cls(*args, **kw)
return instances[cls]
def _zk_singleton(*args, **kw):
zk_addr, zk_port = get_zk_address()
if not (zk_addr and zk_port):
raise CommonException(
'zookeeper address and port are not written!')
if cls not in instances:
instances[cls] = cls(*args, **kw)
if instances[cls].zk is None:
logging.info('zk client disconnect, init another one')
instances[cls] = cls(*args, **kw)
return instances[cls]
def sync(self):
zk_address, zk_port = get_zk_address()
if not (zk_address and zk_port):
logging.info('admin zookeeper first!')
return
zkOper = Common_ZkOpers()
existed = zkOper.existCluster()
if existed:
self._sync_server_cluster()
self._sync_data_node()
else:
logging.info(
"cluster does not exist, may be the first time to sync in a new server cluster"
)
def init(self):
address, port = get_zk_address()
self.zk_helper = ZkHelper(address, port)