如何使用kazoo包在Python中添加子节点数据更新监视

Question

我想使用kazoo客户端在Python的节点的所有子节点上添加监视,但ChildrenWatch只监视子级添加或删除不用于任何子节点的数据更新.我正在寻找一个完成这项任务的简单食谱.

示例代码将是这样的

from kazoo.client import KazooClient

zk = KazooClient(hosts='127.0.0.1:2181')
zk.start()

@zk.SomeRecipe("/root")
def watch_children_update(event):
    print("Updated child at path:%s data:%s stat:%s" % event.path, event.data, event.stat)

Answer 1

from kazoo.client import KazooClient

@client.DataWatch('/path/to/watch')
def my_func(data, stat):
    print("Data is %s" % data)
    print("Version is %s" % stat.version)

# Or if you want the event object
@client.DataWatch('/path/to/watch')
def my_func(data, stat, event):
    print("Data is %s" % data)
    print("Version is %s" % stat.version)
    print("Event is %s" % event)

您需要的是DataWatch