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### Before Creating the Bug Report
- [X] I found a bug, not just asking a question, which should be created in [GitHub Discussions](https://github.com/apache/rocketmq/discussions).
- [X] I have sear…
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After reading the code of rocketmq connect module, I have some questions to ask for advice.
1.The current usage of rocketmq-connect is that transferred to the middle tier by sourceTask, and then t…
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## Description
When there are unresolvable domain names, there will be occasional core dumped.
## env
rocketmq-4.9.2
rocketmq-client-python-1.2.0
rocketmq-client-cpp-2.1.0
## error info
```b…
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阿里云rocketMQ做数据推送 同一个group id 下的所有comsumer， topic 和tag需要是一样的，否则会消费不到 ，当前的配置6个topic都在同一个group 下，所以导致异步回调通知大多数时候都是收不到的
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When subscription rule increase, a single runtime worker cannot support it, we need to add more worker to provide services at the same time.Here are several key issues:
- How many workers are neede…
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```bash
npm ERR! code 1
npm ERR! path /Users/yunwisdom/Workspace/xdata/xdata-search-service/node_modules/apache-rocketmq
npm ERR! command failed
npm ERR! command sh -c node ./script/download_lib.j…
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https://helloteemo.github.io/2021/07/07/RocketMQ/%E6%B6%88%E6%81%AF%E6%B6%88%E8%B4%B9/%E6%B6%88%E8%B4%B9%E8%80%85%E5%90%AF%E5%8A%A8%E6%B5%81%E7%A8%8B/#more
本文主要讲解 RocketMQ 消费者启动流程
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https://objcoding.com/2019/03/31/rocketmq-topic/
我还记得第一次使用rocketmq的时候，需要去控制台预先创建topic，我当时就想为什么要这么设计，于是我决定撸一波源码，带大家从根源上吃透rocketmq topic的创建机制。
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- env:
- rabbitmq version:4.9.2
- jdk:8
- rocketmq-dashborad: use master branch, self build.
- steps to reproduce:
1. create a topic named testTopic.
2. in the dashboard, Topic -> find…
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### Is Your Feature Request Related to a Problem?
RocketMQ currently does not support upstream and downstream lineage query. Client-side traceability cannot be performed for specific Topics and Clu…