java.nio.channels.UnresolvedAddressException when trying to create a topic in Amazon MSK

Question

I created and deleted topics on my Amazon MSK for weeks. But today when I use the same zookeeper connection string I get the error:
java.nio.channels.UnresolvedAddressException

The only difference is I upgraded the java version on my linux instance to Java 17. Can that cause this issue? Nothing else has changed

Answer

Hi there, even though full support of Java 17 is included in later versions of Kafka https://issues.apache.org/jira/browse/KAFKA-13273, I did not see any issues with some simple data plane commands like creating or deleting topics from Apache Kafka 2.7.0 client. It could also be a transient network issue while connecting to zookeeper. Instead of zookeeper string, can you try using --bootstrap-server <broker string> and see if that works.

./kafka-topics.sh --bootstrap-server <broker endpoints> --list

./kafka-topics.sh --bootstrap-server  --list

java.nio.channels.UnresolvedAddressException when trying to create a topic in Amazon MSK

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