[KAFKA-16170] Continuous never ending logs observed when running single node kafka in kraft mode with default KRaft properties in 3.7.0 RC2

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 3.7.0
• Assignee: Unassigned
• Reporter: Vedarth Sharma
• Created: 19/Jan/24 14:29
• Updated: 19/Jan/24 14:47
• Resolved: 19/Jan/24 14:39

Description

After kafka server startup, endless logs are observed, even when server is sitting idle. This behaviour was not observed in previous versions.

It is easy to reproduce this issue

• Download the RC tarball for 3.7.0
• Follow the quickstart guide to run kafka in KRaft mode i.e. execute following commands
  • KAFKA_CLUSTER_ID="$(bin/kafka-storage.sh random-uuid)"
  • bin/kafka-storage.sh format -t $KAFKA_CLUSTER_ID -c config/kraft/server.properties
  • bin/kafka-server-start.sh config/kraft/server.properties
• Once kafka server is started wait for a few seconds and you should see endless logs coming in.

I have attached a small section of the logs in the ticket just after kafka startup line, just to showcase the nature of endless logs observed.

Issue Links

• duplicates: KAFKA-16144 Controller leader checkQuorum timer should skip only 1 controller case