changes.txt

HADOOP 0.18.0安装源代码头文件

HOD Change Log

Release 0.18.0 - Unreleased

  INCOMPATIBLE CHANGES

    HADOOP-3483. Modified HOD to create a cluster directory if one does not
    exist and to auto-deallocate a cluster while reallocating it, if it is
    already dead. (Hemanth Yamijala via mukund)

    HADOOP-3184. Modified HOD to handle master failures on bad nodes by trying 
    to bring them up on another node in the ring. (Hemanth Yamijala via ddas)

    HADOOP-3610. Modified HOD to create cluster directory if one does not
    exist when using the script option. (Vinod Kumar Vavilapalli via yhemanth)

    HADOOP-3808. Modified HOD to include RPC port of the JobTracker
    into the notes attribute of the resource manager. (yhemanth)

  NEW FEATURES

  IMPROVEMENTS

    HADOOP-3376: Provide a mechanism to detect and handle violations to 
    resource manager limits. (Vinod Kumar Vavilapalli via ddas)

    HADOOP-3151. Improves error messages when reporting failures due to 
    incorrect parameters passed to HOD. (Vinod Kumar Vavilapalli via ddas)

    HADOOP-3464. Implemented a mechanism to transfer HOD errors that occur on
    compute nodes to the submit node running the HOD client, so users have good
    feedback on why an allocation failed. (Vinod Kumar Vavilapalli via mukund)
 
    HADOOP-3505. Updated HOD documentation with changes made for Hadoop
    0.18. (Vinod Kumar Vavilapalli via yhemanth)

  BUG FIXES

    HADOOP-2961. Avoids unnecessary checks for some configuration parameters
    related to service configuration. (Vinod Kumar Vavilapalli via ddas)

    HADOOP-3523. Fixes auto-deallocation of cluster if job id is not found in
    Torque's job list (Hemanth Yamijala via ddas)

    HADOOP-3531. Fixes a bug related to handling JobTracker failures because of
    timing issues on slow nodes. (Hemanth Yamijala via ddas)

    HADOOP-3564. HOD generates values for the parameter dfs.datanode.ipc.address
    in the hadoop-site.xml created on datanodes. 
    (Vinod Kumar Vavilapalli via ddas)

    HADOOP-3076. Fixes a bug related to a spurious message about the
    script.exitcode file when a cluster directory is specified as a relative
    path. (Vinod Kumar Vavilapalli via mahadev)

    HADOOP-3703. Fixes logcondense.py to use the new format of hadoop dfs -lsr
    command line output format. (Vinod Kumar Vavilapalli via yhemanth)

Release 0.17.0 - 2008-05-18

  INCOMPATIBLE CHANGES

    HADOOP-3137. Modified build script to pick up version automatically
    from Hadoop build. (yhemanth)

  IMPROVEMENTS

    HADOOP-2775.  Adds unit test framework for HOD.
    (Vinod Kumar Vavilapalli via ddas).

    HADOOP-2848. [HOD]hod -o list and deallocate works even after deleting
    the cluster directory. (Hemanth Yamijala via ddas)

    HADOOP-2899. [HOD] Cleans up hdfs:///mapredsystem directory after
    deallocation. (Hemanth Yamijala via ddas)

    HADOOP-2796. Enables distinguishing exit codes from user code vis-a-vis
    HOD's exit code. (Hemanth Yamijala via ddas)

    HADOOP-2947. HOD redirects stdout and stderr of daemons to assist
    getting stack traces. (Vinod Kumar Vavilapalli via yhemanth)

  BUG FIXES

    HADOOP-2924. Fixes an address problem to do with TaskTracker binding
    to an address. (Vinod Kumar Vavilapalli via ddas)

    HADOOP-2970. Fixes a problem to do with Wrong class definition for
    hodlib/Hod/hod.py for Python < 2.5.1.
    (Vinod Kumar Vavilapalli via ddas)

    HADOOP-2783. Fixes a problem to do with import in
    hod/hodlib/Common/xmlrpc.py. (Vinod Kumar Vavilapalli via ddas)

    HADOOP-2936. Fixes HOD in a way that it generates hdfs://host:port on the
    client side configs. (Vinod Kumar Vavilapalli via ddas)

    HADOOP-2983. [HOD] Fixes the problem - local_fqdn() returns None when
    gethostbyname_ex doesnt return any FQDNs. (Craig Macdonald via ddas)

    HADOOP-2982. Fixes a problem in the way HOD looks for free nodes.
    (Hemanth Yamijala via ddas)

    HADOOP-2855. Fixes the way HOD handles relative paths for cluster
    directory, script file and other options.
    (Vinod Kumar Vavilapalli via yhemanth)

    HADOOP-3153. Fixes the way HOD handles allocation if the user has no
    permissions to update the clusters state file.
    (Vinod Kumar Vavilapalli via yhemanth)

Release 0.16.4 - 2008-05-05

  BUG FIXES

    HADOOP-3304. [HOD] Fixes the way the logcondense.py utility searches
    for log files that need to be deleted. (yhemanth via mukund)

Release 0.16.2 - 2008-04-02

  BUG FIXES

    HADOOP-3103. [HOD] Hadoop.tmp.dir should not be set to cluster
    directory. (Vinod Kumar Vavilapalli via ddas).

Release 0.16.1 - 2008-03-13

  INCOMPATIBLE CHANGES

    HADOOP-2861. Improve the user interface for the HOD commands.
    Command line structure has changed. (Hemanth Yamijala via nigel)

  IMPROVEMENTS

    HADOOP-2730. HOD documentation update.
    (Vinod Kumar Vavilapalli via ddas)

    HADOOP-2911. Make the information printed by the HOD allocate and
    info commands less verbose and clearer. (Vinod Kumar via nigel)

  BUG FIXES

    HADOOP-2766. Enables setting of HADOOP_OPTS env variable for the hadoop
    daemons through HOD. (Vinod Kumar Vavilapalli via ddas)

    HADOOP-2809.  Fix HOD syslog config syslog-address so that it works.
    (Hemanth Yamijala via nigel)

    HADOOP-2847.  Ensure idle cluster cleanup works even if the JobTracker
    becomes unresponsive to RPC calls. (Hemanth Yamijala via nigel)

    HADOOP-2925. Fix HOD to create the mapred system directory using a
    naming convention that will avoid clashes in multi-user shared
    cluster scenario. (Hemanth Yamijala via nigel)

Release 0.16.0 - 2008-02-07

  NEW FEATURES

    HADOOP-1301.  Hadoop-On-Demand (HOD): resource management
    provisioning for Hadoop. (Hemanth Yamijala via nigel)

  BUG FIXES

    HADOOP-2720. Jumbo bug fix patch to HOD.  Final sync of Apache SVN with
    internal Yahoo SVN.  (Hemanth Yamijala via nigel)

    HADOOP-2740. Fix HOD to work with the configuration variables changed in
    HADOOP-2404. (Hemanth Yamijala via omalley)