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Posted to dev@flink.apache.org by Shi Quan <qu...@outlook.com> on 2019/05/06 13:35:45 UTC

What's the meaning of "namespace" in KeyedStateBackend

Hi,

Few documentation mention “namespace” when talking about state. What’s the meaning of this properties and how to use it ?


Best
Quan Shi

Re: What's the meaning of "namespace" in KeyedStateBackend

Posted by "DONG, Weike" <ky...@connect.hku.hk>.

Hi Quan,

Currently namespace is only useful in WindowOperator (see
WindowOperator.java), and for other places, VoidNamespace is used as the
placeholder.

: )

On Mon, May 6, 2019 at 9:36 PM Shi Quan <qu...@outlook.com> wrote:

> Hi,
>
> Few documentation mention “namespace” when talking about state. What’s the
> meaning of this properties and how to use it ?
>
>
> Best
> Quan Shi
>
>