Hadoop MapReduce Change Log Trunk - Unreleased INCOMPATIBLE CHANGES NEW FEATURES IMPROVEMENTS YARN-84. Use Builder to build RPC server. (Brandon Li via suresh) YARN-57. Allow process-tree based resource calculation et al. to be pluggable to support it on multiple platforms. (Radim Kolar via acmurthy) OPTIMAZATIONS BUG FIXES Release 2.0.3-alpha - Unreleased INCOMPATIBLE CHANGES NEW FEATURES IMPROVEMENTS OPTIMIZATIONS BUG FIXES Release 2.0.2-alpha - 2012-09-07 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) YARN-10. Fix DistributedShell module to not have a dependency on hadoop-mapreduce-client-core. (Hitesh Shah via vinodkv) YARN-80. Add support for delaying rack-local containers in CapacityScheduler. (acmurthy) OPTIMAZATIONS 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) YARN-79. Implement close on all clients to YARN so that RPC clients don't throw exceptions on shut-down. (Vinod Kumar Vavilapalli) YARN-42. Modify NM's non-aggregating logs' handler to stop properly so that NMs don't get NPEs on startup errors. (Devaraj K via vinodkv) YARN-15. Updated default classpath for YARN applications to reflect split of YARN into a sub-project. (Arun C Murthy via vinodkv) YARN-75. Modified ResourceManager's RMContainer to handle a valid RELEASE event at RUNNING state. (Siddharth Seth via vinodkv) MAPREDUCE-2374. "Text File Busy" errors launching MR tasks. (Andy Isaacson via atm) Release 0.23.4 - UNRELEASED INCOMPATIBLE CHANGES NEW FEATURES IMPROVEMENTS Change package of YarnClient to org.apache.hadoop. (Bikas Saha via vinodkv) OPTIMIZATIONS BUG FIXES Release 0.23.3 - Unreleased INCOMPATIBLE CHANGES NEW FEATURES IMPROVEMENTS OPTIMAZATIONS 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) YARN-63. RMNodeImpl is missing valid transitions from the UNHEALTHY state (Jason Lowe via bobby) YARN-60. Fixed a bug in ResourceManager which causes all NMs to get NPEs and thus causes all containers to be rejected. (vinodkv) YARN-66. aggregated logs permissions not set properly (tgraves via bobby) YARN-68. NodeManager will refuse to shutdown indefinitely due to container log aggregation (daryn via bobby) YARN-87. NM ResourceLocalizationService does not set permissions of local cache directories (Jason Lowe via tgraves)