Dump Kinesis Client Library (KCL) logs to file

Question

Am using Kinesis Client Library (KCL) to subscribe to kinesis stream. All the KCL logs are printed on console. I need to dump all the logs to file. I tried adding log4j.properties and common-logging.properties files in src folder, but not able to sort out.

Answer 1

KCL uses Apache Commons Logging (common-logging) in the background.

Try using slf4j with jcl-over-slf4j dependency included (or logback).

That way, your general log collector (slf4j) will handle both your application logs and the logs generated by org.apache.commons.logging.Log interface in Amazon classes.

• Sample class in KCL: https://github.com/awslabs/amazon-kinesis-client/blob/c6e393c13ec348f77b8b08082ba56823776ee48a/src/main/java/com/amazonaws/services/kinesis/metrics/impl/CWPublisherRunnable.java
• SLF4J Bridging: http://www.slf4j.org/legacy.html