Github user zhijiangW commented on the issue:
https://github.com/apache/flink/pull/4552
@NicoK , thanks for focusing on the last PR.
I am supposed to divide this into two separate ones as you said. But I am
afraid some current tests may fail if I only modify and enable the credit-based
process on sender side, otherwise I may need to create a temporary handler in
parallel with `PartitionRequestQueue`.
As you said, the latter mainly replaces the `PartitionRequestClientHandler`
with the contents of `CreditBasedClientHandler`, also it replaces the
`CreditBasedClientHandler` class name in previous added tests and remove
previous temporary codes in `ResultPartitionType` to make fixed buffer pool
work.
If it still brings difficulty for your review, then I will try to divide it
then. : )
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