GitHub user rmetzger opened a pull request: https://github.com/apache/flink/pull/518
[FLINK-1650] Configure Netty (akka) to use Slf4j. It seems that Netty 3.8.0 used by Akka was using `java.util.logging` for its internal logging, that's why this entry was without effect: https://github.com/apache/flink/blob/master/flink-dist/src/main/flink-bin/conf/log4j.properties#L29. The change sets the Netty logging factory to Slf4j. This means that Netty is now using Sfl4j. It'll also respect our logging settings (`org.jboss.netty.channel.DefaultChannelPipeline` to lvl ERROR). Lets see if the exception now disappears. You can merge this pull request into a Git repository by running: $ git pull https://github.com/rmetzger/flink flink1650 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/flink/pull/518.patch To close this pull request, make a commit to your master/trunk branch with (at least) the following in the commit message: This closes #518 ---- commit d4778d4d51cd20db2861b3632e64aeac1f5f6f7a Author: Robert Metzger <rmetz...@apache.org> Date: 2015-03-23T10:42:21Z [FLINK-1650] Set akka version to 2.3.9 commit 69b6a9b497955544e0e5c8707293c580e1ba3d5e Author: Robert Metzger <rmetz...@apache.org> Date: 2015-03-23T13:44:19Z [FLINK-1650] Let Netty(Akka) use Slf4j ---- --- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. ---