[ROCKETMQ-251] add an implemets of MessageQueueSelector with consistent hash

• Type: New Feature
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 4.1.0-incubating
• Fix Version/s: 4.1.0-incubating
• Component/s: rocketmq-client
• Labels: features
• Environment: jdk 1.6-1.8
• External issue URL: https://github.com/apache/incubator-rocketmq/pull/138
• Assignee: Xiaorui Wang
• Reporter: laiyiyu
• Created: 28/Jul/17 07:20
• Updated: 03/Aug/17 03:26

Description

wanting to send a message with the same key combine with orderly consumer, user can use the implements of the MessageQueueSelector, which has one optimization compared with SelectMessageQueueByHash when a broker crash , it can reduce the message Arriving out of the order