makabakaboom

[ISSUE #3231]add topic expire time policy

3

**Make sure set the target branch to `develop`** ## What is the purpose of the change #3231 ## Brief changelog #3231 ## Verifying this change #3231 Follow this checklist to...

[ISSUE #3227]add topic message queue count/size statistics and add tools to query it

2

**Make sure set the target branch to `develop`** ## What is the purpose of the change #3227 ## Brief changelog #3227 ## Verifying this change #3227 Follow this checklist to...

message may be lost because of slave can report greater than local commitLog offset in sync_mater mode

2

**BUG REPORT** 1. Please describe the issue you observed: - What did you do (The steps to reproduce)? 1、创建一个SYNC_MASTER模式的集群 2、创建一个连接去连接同步端口，并往里面随机写一些数据 3、master节点会当做是slave上报的offset，并更新push2SlaveMaxOffset，导致后续写入消息可能未等到slave同步就已经返回producer 4、此时master宕机可能就会造成部分数据写master成功，但是还未由pageCache写入到磁盘，且未同步到slave而丢失 - What did you expect to see? 1、判断为不合适的offset，并断掉连接...

add GrayRelease AllocateMessageQueue strategy

12

目前RocketMQ消费缺乏灰度发布能力，所以提交一个可以灰度发布的PR实现消费灰度标签能力