[RATIS-970] use flatbuffers in Client to Datanode communication to avoid buffer copies

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Won't Do
• Component/s: performance, protocol
• Assignee: Mukul Kumar Singh
• Reporter: Mukul Kumar Singh
• Created: 09/Jun/20 14:14
• Updated: 13/Oct/22 10:29
• Resolved: 13/Oct/22 10:29

Description

Currently, Ratis uses protobufs to serialize/de-serialize data during client send and also when it is received on the server. This causes multiple buffer copies. This can be avoided by using flatbuffers.