[KAFKA-1043] Time-consuming FetchRequest could block other request in the response queue

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 0.8.1
• Component/s: mirrormaker
• Labels: newbie++
• Assignee: Unassigned
• Reporter: Guozhang Wang
• Created: 06/Sep/13 00:15
• Updated: 07/Dec/20 15:48

Description

Since in SocketServer the processor who takes any request is also responsible for writing the response for that request, we make each processor owning its own response queue. If a FetchRequest takes irregularly long time to write the channel buffer it would block all other responses in the queue.

Issue Links

• is related to: KAFKA-665 Outgoing responses delayed on a busy Kafka broker