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https://issues.apache.org/jira/browse/KAFKA-15796?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17897855#comment-17897855
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Alexandru Oiegas edited comment on KAFKA-15796 at 11/13/24 8:40 AM:
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Hi, we have the same issue. Can this be fixed with higher prio?
[~xiaotong.wang] [~pnee]
was (Author: JIRAUSER307707):
Hi, we have the same issue. Can this be fixed with higher prio?
> High CPU issue in Kafka Producer when Auth Failed
> --------------------------------------------------
>
> Key: KAFKA-15796
> URL: https://issues.apache.org/jira/browse/KAFKA-15796
> Project: Kafka
> Issue Type: Bug
> Components: clients, producer
> Affects Versions: 3.2.2, 3.2.3, 3.3.1, 3.3.2, 3.5.0, 3.4.1, 3.6.0, 3.5.1
> Reporter: xiaotong.wang
> Priority: Major
> Attachments: image-2023-11-07-14-18-32-016.png
>
>
> How to reproduce
> 1、kafka-client 3.x.x Producer config enable.idempotence=true (this is
> default)
> 2、start kafka server , not contain client user auth info
> 3、start client producer , after 3.x，producer will initProducerId and TCM
> state trans to INITIALIZING
> 4、server reject client reqesut , producer will raise
> AuthenticationException
> (org.apache.kafka.clients.producer.internals.Sender#maybeSendAndPollTransactionalRequest)
> 5、kafka-client org.apache.kafka.clients.producer.internals.Sender#runOnce
> catch
> AuthenticationException
> call transactionManager.authenticationFailed(e);
>
> synchronized void authenticationFailed(AuthenticationException e)
> { for (TxnRequestHandler request : pendingRequests)
> request.fatalError(e); }
> this method only handle pendingRequest，but inflight request is missing
> 6、 TCM state will alway in INITIALIZING
> for judgment Condition： currentState != State.INITIALIZING &&
> !hasProducerId()
> 7、producer send mesasge , mesasge go into batch queue，Sender will wake up
> and set pollTimeout=0 , prepare to send message
> 8、but , before Sender sendProducerData ,it will do message filter
> ，RecordAccumulator drain
> {-}{{-}}>drainBatchesForOneNode{{-}}{-}>shouldStopDrainBatchesForPartition
> when producerIdAndEpoch.isValid()==false，return true, it will not
> collect any message
> 9、now kafka producer network thread CPU usage will go 100%
> 10、even we add user auth info and permission in kafka server ,it can not
> self-healing
>
>
>
> suggest :
> also catch AuthenticationException in
> org.apache.kafka.clients.producer.internals.Sender#maybeSendAndPollTransactionalRequest
> and respone failed to inflight InitProducerId request
>
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