Hi, I am running Flink in YARN mode using the official image with few additional files. I've noticed that my logger failed to initialize:
root:~# docker logs flink-task-manager Starting taskexecutor as a console application on host ***. log4j:WARN No appenders could be found for logger (org.apache.flink.runtime.taskexecutor.TaskManagerRunner). log4j:WARN Please initialize the log4j system properly. log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info. I followed the documentation<https://ci.apache.org/projects/flink/flink-docs-stable/monitoring/logging.html> and seems like all related configuration files exist. Currently, I am using the default files from the official image https://github.com/apache/flink/tree/master/flink-dist/src/main/flink-bin/conf In addition, seems like the process got the right parameters: root 21892 21866 1 08:29 ? 00:02:06 /usr/local/openjdk-8/bin/java -XX:+UseG1GC -Dlog4j.configuration=file:/opt/flink/conf/log4j-console.properties -Dlogback.configurationFile=file:/opt/flink/conf/logback-console.xml -classpath /opt/flink/lib/flink-metrics-prometheus-1.9.2.jar:/opt/flink/lib/flink-table-blink_2.11-1.9.2.jar:/opt/flink/lib/flink-table_2.11-1.9.2.jar:/opt/flink/lib/log4j-1.2.17.jar:/opt/flink/lib/slf4j-log4j12-1.7.15.jar:/opt/flink/lib/flink-dist_2.11-1.9.2.jar::: org.apache.flink.runtime.taskexecutor.TaskManagerRunner --configDir /opt/flink/conf What am I doing wrong ? How can I turn logger on? Best regards Eyal Peer
