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Posted to commits@rocketmq.apache.org by "redlsz (via GitHub)" <gi...@apache.org> on 2023/05/14 05:29:22 UTC
[GitHub] [rocketmq] redlsz opened a new issue, #6751: [Bug] Pop retry topics not cleaned up after deleting pop subscription
redlsz opened a new issue, #6751:
URL: https://github.com/apache/rocketmq/issues/6751
### 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 searched the [GitHub Issues](https://github.com/apache/rocketmq/issues) and [GitHub Discussions](https://github.com/apache/rocketmq/discussions) of this repository and believe that this is not a duplicate.
- [X] I have confirmed that this bug belongs to the current repository, not other repositories of RocketMQ.
### Runtime platform environment
centos7
### RocketMQ version
5.1.0
### JDK Version
JDK 8
### Describe the Bug
In rocketmq 5.0 pop consume mode, retry topic will be created automatically by broker when consume failed and need retry. Every pop subscription has a retry topic named in format: "%RETRY%" + group + "_" + topic. But after deleting topic and group, pop retry topic has not been cleand up.
When responding client in PopMessageProcessor, retry message topic is set to original topic. So the pop retry topic is transparent to the client.
<img width="1290" alt="image" src="https://github.com/apache/rocketmq/assets/103550934/59a35c94-f9d1-41df-b2b6-e2727efcc2b1">
The broker should keep close-loop pop retry topic resource management.
### Steps to Reproduce
1. Create a topic and send a few messages.
2. Consume this topic in pop mode but not ack any messages.
3. Keep runing for longer than pop invisible time, pop retry topic will be created.
4. Stop consumption and delete topic and group.
### What Did You Expect to See?
Pop retry topic will be cleaned up after deleting pop subscription.
### What Did You See Instead?
The pop retry topic has not been cleaned up.
### Additional Context
_No response_
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Re: [I] [Bug] Pop retry topics not cleaned up after deleting pop subscription [rocketmq]
Posted by "yp969803 (via GitHub)" <gi...@apache.org>.
yp969803 commented on issue #6751:
URL: https://github.com/apache/rocketmq/issues/6751#issuecomment-1838170480
@lizhanhui How we can solve this issue?
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Re: [I] [Bug] Pop retry topics not cleaned up after deleting pop subscription [rocketmq]
Posted by "lizhanhui (via GitHub)" <gi...@apache.org>.
lizhanhui commented on issue #6751:
URL: https://github.com/apache/rocketmq/issues/6751#issuecomment-1841910215
> @lizhanhui Can i work into it, can you guide me how can i do it
Sure... and you are welcome to look into this issue and file a pull request to fix it
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Re: [I] [Bug] Pop retry topics not cleaned up after deleting pop subscription [rocketmq]
Posted by "lizhanhui (via GitHub)" <gi...@apache.org>.
lizhanhui commented on issue #6751:
URL: https://github.com/apache/rocketmq/issues/6751#issuecomment-1838429050
@yp969803 I believe @redlsz is right, it's a bug that should be fixed. Let me look into this issue
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Re: [I] [Bug] Pop retry topics not cleaned up after deleting pop subscription [rocketmq]
Posted by "yp969803 (via GitHub)" <gi...@apache.org>.
yp969803 commented on issue #6751:
URL: https://github.com/apache/rocketmq/issues/6751#issuecomment-1838469932
@lizhanhui Can i work into it, can you guide me how can i do it
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[GitHub] [rocketmq] redlsz commented on issue #6751: [Bug] Pop retry topics not cleaned up after deleting pop subscription
Posted by "redlsz (via GitHub)" <gi...@apache.org>.
redlsz commented on issue #6751:
URL: https://github.com/apache/rocketmq/issues/6751#issuecomment-1546812042
If confirmed, I can try to make a fix.
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Re: [I] [Bug] Pop retry topics not cleaned up after deleting pop subscription [rocketmq]
Posted by "lizhanhui (via GitHub)" <gi...@apache.org>.
lizhanhui commented on issue #6751:
URL: https://github.com/apache/rocketmq/issues/6751#issuecomment-1838438215
> If confirmed, I can try to make a fix.
@redlsz Sorry to respond so late, but if you still have time to create a fix. I would be very happy to review your pull request.
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