Hello there, I have an issue with logging from my App that runs within container - no logging comes out except one that goes to System.out
Here is what I have in stderr of the container (not sure if StaticBinder duplicate is an issue, but I will certainly try to fix it): OpenJDK 64-Bit Server VM warning: ignoring option MaxPermSize=512m; support was removed in 8.0 SLF4J: Class path contains multiple SLF4J bindings. SLF4J: Found binding in [jar:file:/var/lib/hadoop/yarn/data/usercache/username/appcache/application_1483475903489_0036/container_1483475903489_0036_01_000002/tmp/twill.launcher-1483721015382-0/lib/logback-classic-1.0.13.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: Found binding in [jar:file:/opt/hadoop/share/hadoop/common/lib/slf4j-log4j12-1.7.10.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation. SLF4J: Actual binding is of type [ch.qos.logback.classic.util.ContextSelectorStaticBinder] 17/01/06 16:43:37 INFO utils.VerifiableProperties: Verifying properties 17/01/06 16:43:37 INFO utils.VerifiableProperties: Property metadata.broker.list is overridden to host:40040 17/01/06 16:43:37 INFO utils.VerifiableProperties: Property request.required.acks is overridden to 1 17/01/06 16:43:37 INFO utils.VerifiableProperties: Property partitioner.class is overridden to org.apache.twill.internal.kafka.client.IntegerPartitioner 17/01/06 16:43:37 INFO utils.VerifiableProperties: Property compression.codec is overridden to snappy 17/01/06 16:43:37 INFO utils.VerifiableProperties: Property key.serializer.class is overridden to org.apache.twill.internal.kafka.client.IntegerEncoder 17/01/06 16:43:37 INFO utils.VerifiableProperties: Property serializer.class is overridden to org.apache.twill.internal.kafka.client.ByteBufferEncoder 17/01/06 16:43:37 INFO client.ClientUtils$: Fetching metadata from broker id:0,host:host,port:40040 with correlation id 0 for 1 topic(s) Set(log) 17/01/06 16:43:37 INFO producer.SyncProducer: Connected to host:40040 for producing 17/01/06 16:43:37 INFO producer.SyncProducer: Disconnecting from host:40040 17/01/06 16:43:38 INFO producer.SyncProducer: Connected host:40040 for producing 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. Jan 06, 2017 4:43:55 PM org.hibernate.validator.internal.util.Version <clinit> INFO: HV000001: Hibernate Validator 5.2.4.Final 17/01/06 16:44:02 INFO producer.Producer: Shutting down producer 17/01/06 16:44:02 INFO producer.ProducerPool: Closing all sync producers 17/01/06 16:44:02 INFO producer.SyncProducer: Disconnecting from host:40040 Thanks
