Is there any guarantee of order? For example, does the default watcher receive the notification first?
On Tue, Jun 26, 2012 at 11:35 AM, Rakesh R <[email protected]> wrote: > When the ZK disconnects/synconnects/expires all the watchers will get the > notifications. I think, you should have the KeeperState checks in the > respctive watchers and can do the thread handling logics. > ________________________________________ > From: David Nickerson [[email protected]] > Sent: Tuesday, June 26, 2012 8:20 PM > To: ZooKeeper mailing list > Subject: Dealing with an expired session > > In my locking implementation, if a thread wants to wait for a lock, it will > create a watcher object, set a watch on the lock before it, and wait on the > watcher. When the watch gets triggered, the watcher notifies any threads > that are waiting on it. > > If the session expires, I would like to wake up all of the threads that are > waiting for a lock. To my understanding, only the default watcher receives > a notification that the session has expired. If this is the case, then I > need to maintain a list somewhere of all of the watchers that threads are > waiting on so that I can notify them all. > > Does this sound correct? >
