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 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.
[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.
What is the purpose of the change
添加 OrderedMQPullConsumer 类,实现对多个消息队列进行排序,获取前
k
早的信息。Brief changelog
MessageQueue
维护一个本地缓冲区,用于减少网络交互次数,提高性能。TreeSet
维护所有MessageQueue
,按照缓冲区里第一条信息的时间戳进行排序。MessageQueue
,消费其第一条信息,并将缓冲区中下一条信息的时间戳作为该MessageQueue
的关键字重新插入数据结构中。MessageQueue
后若干条信息存入缓冲区中。Verifying this change
Verify OK
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
.[ISSUE #123] Fix UnknownException when host config not exist
. Each commit in the pull request should have a meaningful subject line and body.mvn -B clean apache-rat:check findbugs:findbugs checkstyle:checkstyle
to make sure basic checks pass. Runmvn clean install -DskipITs
to make sure unit-test pass. Runmvn clean test-compile failsafe:integration-test
to make sure integration-test pass.