github： https://github.com/python-zk/kazoo
文档： https://kazoo.readthedocs.io/en/latest/
安装
$ pip install kazoo
1、CURD代码示例
>>> from kazoo.client import KazooClient >>> zk = KazooClient(hosts='127.0.0.1:2181') # zkCli.sh >>> zk.start() # ls / >>> zk.get_children("/") ['zookeeper'] # create /mydata data >>> zk.create("/mydata", "data".encode()) '/mydata' # get /mydata >>> zk.get("/mydata") (b'data', ZnodeStat(czxid=40, mzxid=40, ctime=1560494490063, mtime=1560494490063, version=0, cversion=0, aversion=0, ephemeralOwner=0, dataLength=4, numChildren=0, pzxid=40)) # set /mydata data2 >>> zk.set("/mydata", "data2".encode()) ZnodeStat(czxid=40, mzxid=41, ctime=1560494490063, mtime=1560494514269, version=1, cversion=0, aversion=0, ephemeralOwner=0, dataLength=5, numChildren=0, pzxid=40) # delete /mydata >>> zk.delete("/mydata") True # >>> zk.exists("/mydata") # quit >>> zk.stop()
2、监视Zookeeper节点数据发生变化
（1）Python代码
# -*- coding: utf-8 -*- import time from kazoo.client import KazooClient zk = KazooClient(hosts='127.0.0.1:2181') # 启动 zk.start() @zk.DataWatch("/mydata") def watch_children(data, stat): print("Data is %s" % data) if data: print("Version is %s" % stat.version) while True: time.sleep(10)
（2）从Zookeeper客户端修改数据
$ zkCli.sh > create /mydata data0 Created /mydata > set /mydata data1 > set /mydata data2
（3）监听到的数据变化
Data is None Data is b'data0' Version is 0 Data is b'data1' Version is 1 Data is b'data2' Version is 2
参考：
