[jira] [Created] (FLINK-18695) Allow NettyBufferPool to allocate heap buffers

[Shang Yuanchun (Jira)]

Chesnay Schepler created FLINK-18695:
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             Summary: Allow NettyBufferPool to allocate heap buffers
                 Key: FLINK-18695
                 URL: https://issues.apache.org/jira/browse/FLINK-18695
             Project: Flink
          Issue Type: Improvement
          Components: Runtime / Network
            Reporter: Chesnay Schepler
             Fix For: 1.12.0


in 4.1.43 netty made a change to their SslHandler to always use heap buffers for JDK SSLEngine implementations, to avoid an additional memory copy.

However, our {{NettyBufferPool}} forbids heap buffer allocations.

We will either have to allow heap buffer allocations, or create a custom SslHandler implementation that does not use heap buffers (although this seems ill-adviced?).

/cc [~sewen] [~uce] [~NicoK]



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