I am using kafka 8.1.1 If you run an alter on a topic to increase the number of partitions the existing configs are removed from the topic. You can confirm this by doing:
bin/kafka-topics.sh —zookeeper localhost —alter —topic topic —config retention.ms=3600000 bin/kafka-topics.sh —zookeeper localhost —describe > Topic:topic PartitionCount:5 ReplicationFactor:1 >Configs:retention.ms=3600000 bin/kafka-topics.sh —zookeeper localhost —alter —topic topic —partitions 10 bin/kafka-topics.sh —zookeeper localhost —describe > Topic:topic PartitionCount:10 ReplicationFactor:1 Configs: This feels like a bug to me, where is the best place to report something like this? -- Andrew Jorgensen @ajorgensen
