...

4. Share the same network memory pool (NetworkBufferPool) among different shuffle services. It is compatible with the Flink memory model which treats the network memory as one dimension of resource. In fact, we need a public NetworkMemoryProvider interface to expose the network resource to shuffle service plugin. We can leave this together with other user interface relevant work (see

Here is a PoC implementation: https://github.com/wsry/flink/commit/bf6b56b1cd6591e7b3fad6fddd3f701a06c64868.

Compatibility, Deprecation, and Migration Plan

...