Hi Bart, I'm not an expert in this area, but looking at the change [1] in question and the usage of this regex, I'd say it was never the intention to accept comma separated hosts with ports (and optional protocol). The only 2 usages of HOST_PORT_PATTERN can be found in lines 538 [2] and 548 [3] in the same Utils class. Also looking at the tests it seems the expectation has always been to parse a single host with a port pattern (with optional protocol).
[1]: https://github.com/apache/kafka/pull/16048 [2]: https://github.com/apache/kafka/blob/3.8/clients/src/main/java/org/apache/kafka/common/utils/Utils.java#L538 [3]: https://github.com/apache/kafka/blob/3.8/clients/src/main/java/org/apache/kafka/common/utils/Utils.java#L548 [4]: https://github.com/apache/kafka/blob/3.8/clients/src/test/java/org/apache/kafka/common/utils/UtilsTest.java#L104 Best, On Wed, Sep 11, 2024 at 4:23 PM Hamer, Bart <bart.ha...@tennet.eu> wrote: > Hi, > > One of our Quarkus applications connects to Kafka topics using the > *kafka-clients* library. Quarkus provides support for Apache Kafka > through the SmallRye Reactive Messaging > <https://smallrye.io/smallrye-reactive-messaging/> framework. According > to the SmallRye documentation the *bootstrap.servers* property in the > application.properties file should contain a comma separated list (see the > *Configuration > Reference* section on this page: > https://smallrye.io/smallrye-reactive-messaging/smallrye-reactive-messaging/3.4/kafka/kafka.html). > With kafka-clients v3.7.1 this worked fine, but after upgrading to v3.8.0 > starting the application fails with this exception: > > org.apache.kafka.common.KafkaException: Failed to construct kafka consumer > Caused by: org.apache.kafka.common.config.ConfigException: Invalid url in > bootstrap.servers: kafka://test1:9094,kafka://test2:9094 > > This is caused by the changed regex pattern named HOST_PORT_PATTERN in the > *org.apache.kafka.common.utils.Utils* class, which no longer accepts a > comma separated list. Could you please look into this? > Thanks! > > Met vriendelijke groeten / Kind regards / Mit freundlichen Grüßen, > > > > *Bart Hamer* > > Software Specialist > > BTO-SM-BAM > > > > *Aanwezig: ma/di/wo/do* > > > > > > > > *M* > > +31 (0)6 46 94 13 75 > > *E* > > *bart.ha...@tennet.eu <bart.ha...@tennet.eu>* > > *I* > > *www.tennet.eu <http://www.tennet.eu> * > > > > TenneT TSO B.V. > Utrechtseweg 310 > Arnhem > Postbus 718 > 6800 AS Arnhem > Nederland > > > > *Handelsregister:* Arnhem 09155985 > > Denk aan het milieu. Print dit bericht alleen als het noodzakelijk is. > > > -- [image: Aiven] <https://www.aiven.io> *Josep Prat* Open Source Engineering Director, *Aiven* josep.p...@aiven.io | +491715557497 aiven.io <https://www.aiven.io> | <https://www.facebook.com/aivencloud> <https://www.linkedin.com/company/aiven/> <https://twitter.com/aiven_io> *Aiven Deutschland GmbH* Alexanderufer 3-7, 10117 Berlin Geschäftsführer: Oskari Saarenmaa, Hannu Valtonen, Anna Richardson, Kenneth Chen Amtsgericht Charlottenburg, HRB 209739 B
