Hi folks. Very new to ZooKeeper and evaluating it for a project. The ZK 
directory-like layout is perfect for what I'm working on, for record storage, 
with one caveat. I'm curious if there's a way to set it up to return default 
records in the event a specific record isn't available (I'm attempting to 
reduce the number of round-trips to retrieve some data).

For example:

I create a node named "foo" with the data "lorem_ipsum":
create /foo lorem_ipsum

Then I create a node named "bar" under "foo" with the data "baz":
create /foo/bar baz

If I get "/foo/bar" obviously I'll get "baz", however, if I try to get 
"/foo/blah" I'd like to get "lorem_ipsum." I know this is highly suspect as a 
design pattern, but there's a method to the madness. We want to create records 
that can be overridden by sub-records (like "/foo/bar"), but in the event that 
sub-record doesn't exist, I'd get back the next concrete record.

Any thoughts? Thanks!

-Ryan

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