Configure logger for Adam

[davidonlaptop]

Description

Adam is writing valueable information into log files, that can be used for debugging. Since the logger is not configured, it is more difficult to debug it.

Exemple of problem

adamcloud@Adams-Mac-mini-Ubuntu:~$ docker exec adam adam-submit --master spark://spark-master:7077 transform hdfs://hdfs-namenode:9000/SRR062634.sam hdfs://hdfs-namenode:9000/SRR062634b.adam
Spark assembly has been built with Hive, including Datanucleus jars on classpath
2015-04-14 18:56:10 WARN  NativeCodeLoader:62 - Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.

Solution

It seems that the most advanced solution in this field is LogBack which is the latest project in the SLF4J / LOG4J family.