GenerousMan opened a new pull request, #6568: URL: https://github.com/apache/rocketmq/pull/6568
**Make sure set the target branch to `develop`** ## What is the purpose of the change [RIP-63] Issue #6567 . Optimize the proxy's and client's selection strategy for brokers when sending messages, and use multiple selection strategies as a pipeline to filter suitable queues. ## Brief changelog ### Client: - Modified the files in org.apache.rocketmq.client.latency, such as `MQFaultStrategy` and `LatencyFaultTolerance`. These changes implemented queues's filters, which will provide more flexible selecting strategies. - Added some switches and configs in ClientConfig, to control this strategy. - Modified the updateFaultItem() method in the sending process. This method is designed to help record the brokers' available status. Now it will also record whether brokers are reachable or not. ### Proxy: - Added the MQFaultStrategy in the topicRouteService. It will provide a similar queue selection mechanism in the client. - Added some switches and configs in ProxyConfig, to control this strategy. - Implemented the `selectOneByPipeline()` in `MessageQueueSelector`. It will call the filters in mqFaultStrategy to select suitable queue while sending messages. - Modified the implement of `select()` in SendMessageQueueSelector, now it will call the `selectOneByPipeline()`, but not the `selectOne()` before.(PS: If the switch is not opened, it will also run as `selectOne()`). - Added updateFaultItem() in the ProducerProcessor's sendMessage to record brokers' status, according to sending results. ## Verifying this change XXXX Follow this checklist to help us incorporate your contribution quickly and easily. Notice, `it would be helpful if you could finish the following 5 checklist(the last one is not necessary)before request the community to review your PR`. - [x] Make sure there is a [Github issue](https://github.com/apache/rocketmq/issues) filed for the change (usually before you start working on it). Trivial changes like typos do not require a Github issue. Your pull request should address just this issue, without pulling in other changes - one PR resolves one issue. - [x] Format the pull request title like `[ISSUE #123] Fix UnknownException when host config not exist`. Each commit in the pull request should have a meaningful subject line and body. - [x] Write a pull request description that is detailed enough to understand what the pull request does, how, and why. - [x] Write necessary unit-test(over 80% coverage) to verify your logic correction, more mock a little better when cross module dependency exist. If the new feature or significant change is committed, please remember to add integration-test in [test module](https://github.com/apache/rocketmq/tree/master/test). - [x] Run `mvn -B clean apache-rat:check findbugs:findbugs checkstyle:checkstyle` to make sure basic checks pass. Run `mvn clean install -DskipITs` to make sure unit-test pass. Run `mvn clean test-compile failsafe:integration-test` to make sure integration-test pass. - [ ] If this contribution is large, please file an [Apache Individual Contributor License Agreement](http://www.apache.org/licenses/#clas). -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
