hadoop/hadoop-yarn-project/CHANGES.txt

Hadoop MapReduce Change Log

Release 2.0.3-alpha - Unreleased
  
  INCOMPATIBLE CHANGES

  NEW FEATURES

  IMPROVEMENTS

    YARN-78. Changed UnManagedAM application to use YarnClient. (Bikas Saha via
    vinodkv)

    YARN-93. Fixed RM to propagate diagnostics from applications that have
    finished but failed (Jason Lowe via vinodkv). 

    YARN-28. Fixed TestCompositeService to not depend on test-order and thus
    made it pass on JDK7 (Thomas Graves via vinodkv).

    YARN-82. Change the default local and log dirs to be based on
    hadoop.tmp.dir and yarn.log.dir. (Hemanth Yamijala via sseth)

    YARN-53. Added the missing getGroups API to ResourceManager. (Bo Wang via
    vinodkv)

  OPTIMIZATIONS

  BUG FIXES 

Release 2.0.2-alpha - 2012-09-07 

    YARN-9. Rename YARN_HOME to HADOOP_YARN_HOME. (vinodkv via acmurthy)

  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) 

  OPTIMIZATIONS

  BUG FIXES

    YARN-13. Fix pom versions for YARN in branch-2 (todd)

    MAPREDUCE-2374. "Text File Busy" errors launching MR tasks. (Andy Isaacson
    via atm)

    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)

Release 0.23.4 - UNRELEASED

  INCOMPATIBLE CHANGES

  NEW FEATURES

  IMPROVEMENTS

    Change package of YarnClient to org.apache.hadoop. (Bikas Saha via vinodkv)

    YARN-108. FSDownload can create cache directories with the wrong
    permissions (Jason Lowe via bobby)

    YARN-57. Allow process-tree based resource calculation et al. to be
    pluggable to support it on multiple platforms. (Radim Kolar via acmurthy)

  OPTIMIZATIONS

  BUG FIXES

    YARN-88. DefaultContainerExecutor can fail to set proper permissions.
    (Jason Lowe via sseth)

    YARN-106. Nodemanager needs to set permissions of local directories (jlowe
    via bobby)

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)

    MAPREDUCE-4323. 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)