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From Jordan Zimmerman <>
Subject Re: PathChildrenCache and event order
Date Tue, 24 Sep 2013 16:55:07 GMT
You won't see every create event. Here's a scenario:

Client 1 has a watch on "/foo". Any client creates "/foo/bar". Client 1 will get a watch notification
for "/foo/bar". Before Client 1 resets the watch, another Client 2 creates "/foo/two" and
deletes it. Client 1 will never know about "/foo/two".

NOTE: there are other similar scenarios.


On Sep 24, 2013, at 9:50 AM, Benjamin Jaton <> wrote:

> About "you cannot reliably see every change that happens to a node in ZooKeeper", in
my case I only use create events which I believe ZooKeeper 
> guarantees me to see every single one of them.

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