[KAFKA-3385] Need to log "Rejected connection" as WARNING message

• Type: Improvement
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Component/s: logging
• Assignee: Unassigned
• Reporter: Xiaomin Zhang
• Created: 11/Mar/16 16:27
• Updated: 02/Aug/18 22:06

Description

We may found below INFO messages in the log due to inappropriate configuration:
INFO kafka.network. Acceptor: Rejected connection from /XXXX, address already has the configured maximum of 10 connections.

It will make more sense for Kafka to report above message as "WARN", not just "INFO", as it truly indicates something need to check against.

Issue Links

• links to: GitHub Pull Request #1144