'confluentinc/cp-kafka docker log4j warnings
docker pull confluentinc/cp-kafka
I use this code to pull the kafka image. Then, use the following to start the containers.
docker run --rm -d --name kafka-server -p 9092:9092 -e ALLOW_PLAINTEXT_LISTENER=yes -e KAFKA_ZOOKEEPER_CONNECT=192.168.1.164:2181 -e KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR=1 -e KAFKA_ADVERTISED_LISTENERS=PLAINTEXT://localhost:9092 confluentinc/cp-kafka
However, it will immediately shut down and given the logs:
log4j:WARN No appenders could be found for logger (io.confluent.admin.utils.cli.ZookeeperReadyCommand).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
How to solve this log4j error? (By terminal)
Solution 1:[1]
You fix it by providing KAFKA_LOG4J_LOGGERS variable. For example
-e KAFKA_LOG4J_LOGGERS="kafka.controller=INFO,kafka.producer.async.DefaultEventHandler=INFO,state.change.logger=INFO"
Note: ALLOW_PLAINTEXT_LISTENER=yes is for bitnami/kafka image, not Confluent ones
Sources
This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.
Source: Stack Overflow
| Solution | Source |
|---|---|
| Solution 1 | OneCricketeer |