[fix][broker] Fix ProducerBusy issue due to incorrect userCreatedProducerCount on non-persistent topic #22685
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…ucerCount on non-persistent topic
Technoboy-
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May 9, 2024
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Codecov ReportAll modified and coverable lines are covered by tests ✅
Additional details and impacted files@@ Coverage Diff @@
## master #22685 +/- ##
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- Coverage 73.57% 73.09% -0.48%
+ Complexity 32624 32465 -159
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Files 1877 1888 +11
Lines 139502 141103 +1601
Branches 15299 15484 +185
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+ Hits 102638 103145 +507
- Misses 28908 29971 +1063
- Partials 7956 7987 +31
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nikhil-ctds
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May 15, 2024
…ucerCount on non-persistent topic (apache#22685) Co-authored-by: ruihongzhou <ruihongzhou@tencent.com> (cherry picked from commit 253e650) (cherry picked from commit 89b545e)
srinath-ctds
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May 16, 2024
…ucerCount on non-persistent topic (apache#22685) Co-authored-by: ruihongzhou <ruihongzhou@tencent.com> (cherry picked from commit 253e650) (cherry picked from commit 89b545e)
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Motivation
#20607 introduced the variable
userCreatedProducerCountto track the number of producers created by users. Concurrently, theremoveProducermethod inAbstractTopicdecreases the count ofuserCreatedProducerCountusingUSER_CREATED_PRODUCER_COUNTER_UPDATER.decrementAndGet(this)when a producer is removed. However,NonPersistentTopicoverrides theremoveProducermethod ofAbstractTopic, and the overriddenremoveProducermethod inNonPersistentTopicdoes not decrease the count ofuserCreatedProducerCount. As a result, whenmaxProducersPerTopicis set, this incorrect value ofuserCreatedProducerCountcan lead to aProducerBusyerror when creating a producer.Modifications
Since the
NonPersistentTopicclass extends theAbstractTopicclass and the implementation of theremoveProducermethod inNonPersistentTopicis identical to that inAbstractTopic, theremoveProducermethod inNonPersistentTopiccan be safely removed.Verifying this change
Added test in
org.apache.pulsar.broker.service.nonpersistent.NonPersistentTopicTest#testRemoveProducerOnNonPersistentTopicDoes this pull request potentially affect one of the following parts:
If the box was checked, please highlight the changes
Documentation
docdoc-requireddoc-not-neededdoc-completeMatching PR in forked repository
PR in forked repository: hrzzzz#5