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From Benjamin Jaton <bja...@radiantlogic.com>
Subject Re: Watching children changes
Date Wed, 17 Jul 2013 22:46:24 GMT
Shoot, yes, I'll move my question to the ZK list.


On Wed, Jul 17, 2013 at 3:40 PM, Jordan Zimmerman <
jordan@jordanzimmerman.com> 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 <bjaton@radiantlogic.com>
> 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
> >
>
>

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