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Posted to user@curator.apache.org by "Dominic Chevalier (TT)" <Do...@tradingtechnologies.com> on 2015/01/07 00:22:30 UTC

PathChildrenCache empty node creation

1. Why does a watch using PathChildrenCache create empty nodes in
zookeeper? It seems other zookeeper APIs are capable of watching a
non-existent path.

2. My system design would prefer I do not create empty nodes, is this a bad
pattern for zookeeper?

Thank you,
Dominic

Re: PathChildrenCache empty node creation

Posted by Scott Blum <dr...@gmail.com>.

Hi Dominic,

You might try TreeCache with a maxDepth of 0, it doesn't create nodes.

On Tue, Jan 6, 2015 at 6:22 PM, Dominic Chevalier (TT) <
Dominic.Chevalier@tradingtechnologies.com> wrote:

> 1. Why does a watch using PathChildrenCache create empty nodes in
> zookeeper? It seems other zookeeper APIs are capable of watching a
> non-existent path.
>
> 2. My system design would prefer I do not create empty nodes, is this a
> bad pattern for zookeeper?
>
> Thank you,
> Dominic
>