Global windows and purging

[Elias Levy <fe...@gmail.com>]

The documentation on streaming windows has the following warning:

Attention Purging will simply remove the contents of the window and will
> leave any potential meta-information about the window and any trigger state
> intact


Does this mean that if you are using global windows, purging is not
sufficient the discard all window state for the given key?

Is there a way to discard global window state when you are done with it or
will the state grow indefinitely  as new keys come in?

Re: Global windows and purging

[Elias Levy <fe...@gmail.com>]

FLINK-7731 seems to answer my question.  Need to call clear() when purging
to remote all state.

On Thu, Nov 2, 2017 at 6:04 PM, Elias Levy <fe...@gmail.com>
wrote:

> The documentation on streaming windows has the following warning:
>
> Attention Purging will simply remove the contents of the window and will
>> leave any potential meta-information about the window and any trigger state
>> intact
>
>
> Does this mean that if you are using global windows, purging is not
> sufficient the discard all window state for the given key?
>
> Is there a way to discard global window state when you are done with it or
> will the state grow indefinitely  as new keys come in?
>
>
>