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Tobias Pfeiffer commented on SPARK-4147: ---------------------------------------- [~srowen] Thank you! > Reduce log4j dependency > ----------------------- > > Key: SPARK-4147 > URL: https://issues.apache.org/jira/browse/SPARK-4147 > Project: Spark > Issue Type: Wish > Components: Spark Core > Affects Versions: 1.1.0 > Reporter: Tobias Pfeiffer > > spark-core has a hard dependency on log4j, which shouldn't be necessary since > slf4j is used. I tried to exclude slf4j-log4j12 and log4j dependencies in my > sbt file. > Excluding org.slf4j.slf4j-log4j12 works fine if logback is on the classpath. > However, removing the log4j dependency fails because in > https://github.com/apache/spark/blob/v1.1.0/core/src/main/scala/org/apache/spark/Logging.scala#L121 > a static method of org.apache.log4j.LogManager is accessed *even if* log4j > is not in use. > I guess removing all dependencies on log4j may be a bigger task, but it would > be a great help if the access to LogManager would be done only if log4j use > was detected before. (This is a 2-line change.) -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org