StreamCapabilities interface • HDDS-7136 Memory leak due to ChunkInputStream.close() not releasing buffer • HDDS-7161 Make Checksum.int2ByteString() zero-copy All fixes are upstreamed in Apache Ozone 1 awareness ○ Client writes to the closest datanode instead of the Leader ● Netty zero buffer copy ○ No gRPC buffer problem Ratis streaming Benchmark – Observation ● V2 Streaming multiple-client cases

StreamCapabilities interface • HDDS-7136 Memory leak due to ChunkInputStream.close() not releasing buffer • HDDS-7161 Make Checksum.int2ByteString() zero-copy All fixes are upstreamed in Apache Ozone 1 StreamCapabilities interface • HDDS-7136 Memory leak due to ChunkInputStream.close() not releasing buffer • HDDS-7161 Make Checksum.int2ByteString() zero-copy All fixes are upstreamed in Apache Ozone 1

c1:block2 c1:block2 c1:blockn c1:blockn c1:block2 c1:block2 c1:blockn c1:blockn c1:blockn Padding Buffer 0000000 0000000 0000000 0000….. Client uses padding data for generating parity chunks if stripe