Cristian D created KAFKA-8157: --------------------------------- Summary: Missing "key.serializer" exception when setting "segment index bytes" Key: KAFKA-8157 URL: https://issues.apache.org/jira/browse/KAFKA-8157 Project: Kafka Issue Type: Bug Components: streams Affects Versions: 2.2.0 Environment: ubuntu 18.10, localhost and Aiven too Reporter: Cristian D
As a `kafka-streams` user, When I set the "segment index bytes" property Then I would like to have internal topics with the specified allocated disk space At the moment, when setting the "topic.segment.index.bytes" property, the application is exiting with following exception: {code:java} Exception in thread "main" org.apache.kafka.common.config.ConfigException: Missing required configuration "key.serializer" which has no default value. {code} Tested with `kafka-streams` v2.0.0 and v2.2.0. Stack trace: {code:java} Exception in thread "main" org.apache.kafka.common.config.ConfigException: Missing required configuration "key.serializer" which has no default value. at org.apache.kafka.common.config.ConfigDef.parseValue(ConfigDef.java:474) at org.apache.kafka.common.config.ConfigDef.parse(ConfigDef.java:464) at org.apache.kafka.common.config.AbstractConfig.<init>(AbstractConfig.java:62) at org.apache.kafka.common.config.AbstractConfig.<init>(AbstractConfig.java:75) at org.apache.kafka.clients.producer.ProducerConfig.<init>(ProducerConfig.java:392) at org.apache.kafka.streams.StreamsConfig.getMainConsumerConfigs(StreamsConfig.java:1014) at org.apache.kafka.streams.processor.internals.StreamThread.create(StreamThread.java:666) at org.apache.kafka.streams.KafkaStreams.<init>(KafkaStreams.java:718) at org.apache.kafka.streams.KafkaStreams.<init>(KafkaStreams.java:634) at org.apache.kafka.streams.KafkaStreams.<init>(KafkaStreams.java:544) at app.Main.main(Main.java:36) {code} A demo application simulating the exception: https://github.com/razorcd/java-snippets-and-demo-projects/tree/master/kafkastreamsdemo -- This message was sent by Atlassian JIRA (v7.6.3#76005)