[KAFKA-289] reuse topicdata when sending producerrequest

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 0.8.0
• Labels: optimization replication wireprotocol
• Assignee: Unassigned
• Reporter: Joe Stein
• Created: 27/Feb/12 23:55
• Updated: 07/Oct/16 16:45
• Resolved: 07/Feb/15 23:52

Description

The way that SyncProducer sends a ProducerRequest over socket is to first serialize the whole request in a bytebuffer and then sends the bytebuffer through socket. An alternative is to send the request like FetchReponse, using a ProduceRequestSend that reuses TopicDataSend. This avoids code duplication and is more efficient since it sends data in ByteBufferMessagesSet directly to socket and avoids extra copying from messageset to bytebuffer.

Issue Links

• is related to: KAFKA-240 implement new producer and consumer request format