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Watching children updates
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