I'm wondering if a client loses session to its ephemeral znode, under the hood, how is the watcher triggered?
went through the code , and found something that looks related: ZKDataBase.killSession()-->DataTree.killSession()--->DataTree.deleteNode()--->WatchManager.triggerWatch()--->Watcher.process() but how is ZKDataBase.killSession() called? from the info given in http://zookeeper.apache.org/doc/r3.3.3/zookeeperProgrammers.html#ch_zkSessions I can see the ZooKeeper client code does periodically ping the server to maintain liveness. but how the server checks for this liveness and trigger killSession(), here I'm having difficulty connecting the dots. could you please give me some help walking through this piece of code? Thanks Yang
