> What is the performance impact of having for example thousands of watchers?
It's an important consideration. This question might be better for the ZK list, BTW. I know that Facebook is working on a general watcher capability - i.e. notify me of everything. But, I don't know what its status is. -JZ On Jul 17, 2013, at 3:35 PM, Benjamin Jaton <[email protected]> wrote: > Hello, > > I would like to be notified of a change on any of the children of a znode > (could be a lot of them). > > AFAIK to achieve this we need to set a watcher on each child and then also > watch the parent to be aware of children addition/deletion and add/remove > watchers accordingly. Is that correct? > > What is the performance impact of having for example thousands of watchers? > > Thanks, > Ben >
