BTW - You can use PathChildrenCache for this purpose: http://curator.incubator.apache.org/curator-recipes/path-cache.html
On Jul 17, 2013, at 3:46 PM, Benjamin Jaton <[email protected]> wrote: > Shoot, yes, I'll move my question to the ZK list. > > > On Wed, Jul 17, 2013 at 3:40 PM, Jordan Zimmerman > <[email protected]> wrote: > > 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 > > > >
