Yes, I think you are interested in this issue and fix: https://github.com/apache/spark/pull/107
-- Sean Owen | Director, Data Science | London On Fri, Mar 14, 2014 at 1:04 PM, Adrian Mocanu <amoc...@verticalscope.com>wrote: > Hi > > Have you encountered a slf4j and log4j loop when using Spark? I pull a few > packages via sbt. > > Spark package uses slf4j-log4j12.jar and another package uses use > log4j-over-slf4j.jar which creates the circular loop between the 2 loggers > and thus the exception below. Do you know of a fix for this? > > > > > > SLF4J: Detected both log4j-over-slf4j.jar AND slf4j-log4j12.jar on the > class path, preempting StackOverflowError. > > SLF4J: See also http://www.slf4j.org/codes.html#log4jDelegationLoop for > more details. > > An exception or error caused a run to abort. > > java.lang.ExceptionInInitializerError > > at org.apache.log4j.Logger.getLogger(Logger.java:40) > > at > org.apache.spark.util.AkkaUtils$.createActorSystem(AkkaUtils.scala:58) > > at org.apache.spark.SparkEnv$.create(SparkEnv.scala:126) > > at > org.apache.spark.SparkContext.<init>(SparkContext.scala:139) > > at > org.apache.spark.streaming.StreamingContext$.createNewSparkContext(StreamingContext.scala:500) > > at > org.apache.spark.streaming.StreamingContext.<init>(StreamingContext.scala:76) > > … … … … … … … … … … … … … … … … > > Caused by: java.lang.IllegalStateException: Detected both > log4j-over-slf4j.jar AND slf4j-log4j12.jar on the class path, preempting > StackOverflowError. See also > http://www.slf4j.org/codes.html#log4jDelegationLoop for more details. > > at > org.apache.log4j.Log4jLoggerFactory.<clinit>(Log4jLoggerFactory.java:51) > > ... 54 more > > > > > > Thanks > > -Adrian > > >
