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Posted to commits@pulsar.apache.org by GitBox <gi...@apache.org> on 2021/02/26 17:12:32 UTC
[GitHub] [pulsar] aloyszhang opened a new issue #9742: Consumer receive extra messages when enableRetry and retryLetterTopic and deadLetterTopic are not set
aloyszhang opened a new issue #9742:
URL: https://github.com/apache/pulsar/issues/9742
**Describe the bug**
Consumer receive extra messages when enableRetry and retryLetterTopic and deadLetterTopic are not set.
Currently, if enableRetry is set to true for a consumer and retryLetterTopic and deadLetterTopic are not set, ConsumerBuilderImpl will build the default retryLetterTopic and deadLetterTopic like :
`tenant/namespaces/subscriptionName-RETRY` and `tenant/namespaces/subscriptionName-DLQ`.
If we have two topics in the same namespace, assume `tenant/namespaces/topicA` and `tenant/namespaces/topicB`, and then
1. start subscription for `tenant/namespaces/topicA` with subscription name `sub-name`,
2. start subscription for `tenant/namespaces/topicB` with the same subscription name `sub-name`
3. enableRetry but not set specify retryLetterTopic and deadLetterTopic for the two subscriptions
subscription for topicA and topicB will have the same retryLetterTopic `tenant/namespaces/sub-Name-RETRY` and the same deadLetterTopic `tenant/namespaces/sub-Name-DLQ`.
So each subscription may receive message from another topic.
**Expected behavior**
Consuemr should not receive messages from non-subscribe topic
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[GitHub] [pulsar] eolivelli commented on issue #9742: Consumer receive extra messages when enableRetry and retryLetterTopic and deadLetterTopic are not set
Posted by GitBox <gi...@apache.org>.
eolivelli commented on issue #9742:
URL: https://github.com/apache/pulsar/issues/9742#issuecomment-786778535
That's pretty bad.
I am not sure how we can fix this in a compatible way
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[GitHub] [pulsar] aloyszhang commented on issue #9742: Consumer receive extra messages when enableRetry and retryLetterTopic and deadLetterTopic are not set
Posted by GitBox <gi...@apache.org>.
aloyszhang commented on issue #9742:
URL: https://github.com/apache/pulsar/issues/9742#issuecomment-871036514
closed by #10129
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[GitHub] [pulsar] aloyszhang closed issue #9742: Consumer receive extra messages when enableRetry and retryLetterTopic and deadLetterTopic are not set
Posted by GitBox <gi...@apache.org>.
aloyszhang closed issue #9742:
URL: https://github.com/apache/pulsar/issues/9742
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