So I have just created a PR implementation this that does not require adding a new SecurityProtocol as originally suggested, i.e. you can use PLAINTEXT://127.0.0.1:9092,PLAINTEXT://[::1]:9092 but it only passes the validation in the specific case of having 2 addresses on the same port with one being IPv4 and the other being IPv6 otherwise the original validation still applies.
PR is open at https://github.com/apache/kafka/pull/11478, feel free to review/comment on it. On Mon, Nov 1, 2021 at 11:09 PM Colin McCabe <cmcc...@apache.org> wrote: > Hi Matthew, > > I think you should create a KIP for this proposal, since it is a change to > our public interfaces. Also, there are some subtle questions that we need > to answer, like do the ipv4 and ipv6 interfaces that share the same port > also have to share the same security protocol? > > best, > Colin > > > On Fri, Sep 24, 2021, at 01:44, Matthew de Detrich wrote: > > Hello everyone, > > > > I wanted to ask if anyone has any thoughts/objections regarding Kafka > > allowing multiple listeners of the same port as long as one is IPv4 and > the > > other is IPv6, i.e. > > > > listeners=PLAINTEXT://127.0.0.1:9092,PLAINTEXTV6://[::1]:9092 > > listener.security.protocol.map=PLAINTEXT:PLAINTEXT,PLAINTEXTV6:PLAINTEXT > > > > Currently Kafka enforces that every listener has to have a unique port > > which doesn't allow such a configuration. > > > > Disabling this check and allowing such a configuration doesn't seem to > > cause any issues but I may be missing potential problems with allowing > both > > IPv4 and IPv6 on the same port, does anyone have comments on this? > > > > Relevant Ticket: https://issues.apache.org/jira/browse/KAFKA-13299 > > > > -- > > > > Matthew de Detrich > > > > *Aiven Deutschland GmbH* > > > > Immanuelkirchstraße 26, 10405 Berlin > > > > Amtsgericht Charlottenburg, HRB 209739 B > > > > Geschäftsführer: Oskari Saarenmaa & Hannu Valtonen > > > > *m:* +491603708037 > > > > *w:* aiven.io *e:* matthew.dedetr...@aiven.io > -- Matthew de Detrich *Aiven Deutschland GmbH* Immanuelkirchstraße 26, 10405 Berlin Amtsgericht Charlottenburg, HRB 209739 B Geschäftsführer: Oskari Saarenmaa & Hannu Valtonen *m:* +491603708037 *w:* aiven.io *e:* matthew.dedetr...@aiven.io
