ASF GitHub Bot commented on FLINK-8458:

Github user zhijiangW commented on the issue:

    @pnowojski , thanks for your messages and I already updated the commit as 
you suggested.

> Add the switch for keeping both the old mode and the new credit-based mode
> --------------------------------------------------------------------------
>                 Key: FLINK-8458
>                 URL: https://issues.apache.org/jira/browse/FLINK-8458
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Network
>            Reporter: zhijiang
>            Assignee: zhijiang
>            Priority: Major
>             Fix For: 1.5.0
> After the whole feature of credit-based flow control is done, we should add a 
> config parameter to switch on/off the new credit-based mode. To do so, we can 
> roll back to the old network mode for any expected risks.
> The parameter is defined as 
> {{taskmanager.network.credit-based-flow-control.enabled}} and the default 
> value is true. This switch may be removed after next release.

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