Hadoop MapReduce Change Log Trunk (unreleased changes) INCOMPATIBLE CHANGES NEW FEATURES IMPROVEMENTS BUG FIXES Branch-2 ( Unreleased changes ) INCOMPATIBLE CHANGES NEW FEATURES IMPROVEMENTS BUG FIXES MAPREDUCE-2374. "Text File Busy" errors launching MR tasks. (Andy Isaacson via atm) Release 2.1.0-alpha - Unreleased INCOMPATIBLE CHANGES NEW FEATURES YARN-1. Promote YARN to be a sub-project of Apache Hadoop. (acmurthy) IMPROVEMENTS YARN-29. Add a yarn-client module. (Vinod Kumar Vavilapalli via sseth) BUG FIXES YARN-12. Fix findbugs warnings in FairScheduler. (Junping Du via acmurthy) YARN-22. Fix ContainerLogs to work if the log-dir is specified as a URI. (Mayank Bansal via sseth) YARN-37. Change TestRMAppTransitions to use the DrainDispatcher. (Mayank Bansal via sseth) Release 0.23.3 - Unreleased INCOMPATIBLE CHANGES NEW FEATURES IMPROVEMENTS BUG FIXES YARN-14. Symlinks to peer distributed cache files no longer work (Jason Lowe via bobby) YARN-25. remove old aggregated logs (Robert Evans via tgraves) YARN-27. Failed refreshQueues due to misconfiguration prevents further refreshing of queues (Arun Murthy via tgraves) YARN-58. NM leaks filesystems (Jason Lowe via jeagles) YARN-39. RM-NM secret-keys should be randomly generated and rolled every so often. (vinodkv and sseth via sseth) YARN-31. Fix TestDelegationTokenRenewer to not depend on test order so as to pass tests on jdk7. (Thomas Graves via vinodkv)