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Posted to dev@rocketmq.apache.org by GitBox <gi...@apache.org> on 2022/04/16 14:51:12 UTC
[GitHub] [rocketmq] itlidaye opened a new issue, #4177: Is there a limit to the number of tags?
itlidaye opened a new issue, #4177:
URL: https://github.com/apache/rocketmq/issues/4177
Is there a limit to the number of tags?
Will the same topic 1000/10000 tags affect performance?
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Re: [I] Is there a limit to the number of tags? [rocketmq]
Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on issue #4177:
URL: https://github.com/apache/rocketmq/issues/4177#issuecomment-2002196994
This issue is stale because it has been open for 365 days with no activity. It will be closed in 3 days if no further activity occurs.
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[GitHub] [rocketmq] wojiushimogui commented on issue #4177: Is there a limit to the number of tags?
Posted by "wojiushimogui (via GitHub)" <gi...@apache.org>.
wojiushimogui commented on issue #4177:
URL: https://github.com/apache/rocketmq/issues/4177#issuecomment-1473705776
> > A large number of different tags is not recommended. A large number of different tags can mean a large number of different subscribers. A larger number of subscribers can have an impact on broker performance.
>
> I've done this in a production environment before and it does have an impact on performance.
all is pull consumption, topic has many tags, consumers only pay attention to a small number of tags, why is there a performance impact? Can you tell me the specific reason?
In my opinion, the message is matched directly on the server side according to the hashCode, and then directly matched on the consumer side according to the plaintext of the tag, which has nothing to do with the number of tags.
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[GitHub] [rocketmq] lwclover commented on issue #4177: Is there a limit to the number of tags?
Posted by GitBox <gi...@apache.org>.
lwclover commented on issue #4177:
URL: https://github.com/apache/rocketmq/issues/4177#issuecomment-1100863377
> A large number of different tags is not recommended. A large number of different tags can mean a large number of different subscribers. A larger number of subscribers can have an impact on broker performance.
I've done this in a production environment before and it does have an impact on performance.
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[GitHub] [rocketmq] pingww commented on issue #4177: Is there a limit to the number of tags?
Posted by GitBox <gi...@apache.org>.
pingww commented on issue #4177:
URL: https://github.com/apache/rocketmq/issues/4177#issuecomment-1100831372
A large number of different tags is not recommended. A large number of different tags can mean a large number of different subscribers. A larger number of subscribers can have an impact on broker performance.
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[GitHub] [rocketmq] itlidaye commented on issue #4177: Is there a limit to the number of tags?
Posted by GitBox <gi...@apache.org>.
itlidaye commented on issue #4177:
URL: https://github.com/apache/rocketmq/issues/4177#issuecomment-1101005813
> Depending on your consumption patterns, whether there will be a lot different tag subscription ?
all is pull consumption
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Re: [I] Is there a limit to the number of tags? [rocketmq]
Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on issue #4177:
URL: https://github.com/apache/rocketmq/issues/4177#issuecomment-2014077058
This issue was closed because it has been inactive for 3 days since being marked as stale.
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[GitHub] [rocketmq] hill007299 commented on issue #4177: Is there a limit to the number of tags?
Posted by GitBox <gi...@apache.org>.
hill007299 commented on issue #4177:
URL: https://github.com/apache/rocketmq/issues/4177#issuecomment-1100820119
Depending on your consumption patterns, whether there will be a lot different tag subscription ?
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Re: [I] Is there a limit to the number of tags? [rocketmq]
Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] closed issue #4177: Is there a limit to the number of tags?
URL: https://github.com/apache/rocketmq/issues/4177
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