MAPREDUCE-728 could not make the code freeze deadline primarily it
couples closely with JobTracker and that there are quite a few late
patches that changed the APIs it depend on. It passed testing on
Hudson on Thursday night. All new changes I added in the latest patch
(thanks to Chris for his assist in the process) are trivial changes to
accommodate either API changes or build changes (e.g. avro bumps up
version from 1.0.0 to 1.1.0).

The patch adds a new MapReduce simulator, Mumak, as a contrib project.
it has sufficient usage to help us understand, debug, profile, and
design-proof JobTracker or scheduler.

Given the circumstances, I would like to request a vote to commit
MAPREDUCE-728 to Hadoop 0.21.

-Hong

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  • Owen O'Malley at Sep 21, 2009 at 5:24 pm

    On Sep 18, 2009, at 10:24 PM, Hong Tang wrote:

    Given the circumstances, I would like to request a vote to commit
    MAPREDUCE-728 to Hadoop 0.21.
    Mumak has already found a couple bugs in map/reduce and promises to
    find more. I think this is a good low-risk addition to 0.21.

    +1

    -- Owen
  • Arun C Murthy at Sep 22, 2009 at 12:06 am
    +1

    Arun
    On Sep 18, 2009, at 10:24 PM, Hong Tang wrote:

    MAPREDUCE-728 could not make the code freeze deadline primarily it
    couples closely with JobTracker and that there are quite a few late
    patches that changed the APIs it depend on. It passed testing on
    Hudson on Thursday night. All new changes I added in the latest
    patch (thanks to Chris for his assist in the process) are trivial
    changes to accommodate either API changes or build changes (e.g.
    avro bumps up version from 1.0.0 to 1.1.0).

    The patch adds a new MapReduce simulator, Mumak, as a contrib
    project. it has sufficient usage to help us understand, debug,
    profile, and design-proof JobTracker or scheduler.

    Given the circumstances, I would like to request a vote to commit
    MAPREDUCE-728 to Hadoop 0.21.

    -Hong
  • Devaraj Das at Sep 22, 2009 at 12:08 am
    It will be nice to have this in. +1


    On 9/18/09 10:24 PM, "Hong Tang" wrote:

    MAPREDUCE-728 could not make the code freeze deadline primarily it
    couples closely with JobTracker and that there are quite a few late
    patches that changed the APIs it depend on. It passed testing on
    Hudson on Thursday night. All new changes I added in the latest patch
    (thanks to Chris for his assist in the process) are trivial changes to
    accommodate either API changes or build changes (e.g. avro bumps up
    version from 1.0.0 to 1.1.0).

    The patch adds a new MapReduce simulator, Mumak, as a contrib project.
    it has sufficient usage to help us understand, debug, profile, and
    design-proof JobTracker or scheduler.

    Given the circumstances, I would like to request a vote to commit
    MAPREDUCE-728 to Hadoop 0.21.

    -Hong
  • Chris Douglas at Sep 22, 2009 at 12:36 am
    +1 -C
    On Fri, Sep 18, 2009 at 10:24 PM, Hong Tang wrote:
    MAPREDUCE-728 could not make the code freeze deadline primarily it couples
    closely with JobTracker and that there are quite a few late patches that
    changed the APIs it depend on. It passed testing on Hudson on Thursday
    night. All new changes I added in the latest patch (thanks to Chris for his
    assist in the process) are trivial changes to accommodate either API changes
    or build changes (e.g. avro bumps up version from 1.0.0 to 1.1.0).

    The patch adds a new MapReduce simulator, Mumak, as a contrib project. it
    has sufficient usage to help us understand, debug, profile, and design-proof
    JobTracker or scheduler.

    Given the circumstances, I would like to request a vote to commit
    MAPREDUCE-728 to Hadoop 0.21.

    -Hong
  • Sharad Agarwal at Sep 22, 2009 at 5:54 am
    +1

    Hong Tang wrote:
    MAPREDUCE-728 could not make the code freeze deadline primarily it
    couples closely with JobTracker and that there are quite a few late
    patches that changed the APIs it depend on. It passed testing on
    Hudson on Thursday night. All new changes I added in the latest patch
    (thanks to Chris for his assist in the process) are trivial changes to
    accommodate either API changes or build changes (e.g. avro bumps up
    version from 1.0.0 to 1.1.0).

    The patch adds a new MapReduce simulator, Mumak, as a contrib project.
    it has sufficient usage to help us understand, debug, profile, and
    design-proof JobTracker or scheduler.

    Given the circumstances, I would like to request a vote to commit
    MAPREDUCE-728 to Hadoop 0.21.

    -Hong
  • Hong Tang at Sep 24, 2009 at 10:03 am
    With 5 +1's and no -1's, the vote passes.
    On Sep 18, 2009, at 10:24 PM, Hong Tang wrote:

    MAPREDUCE-728 could not make the code freeze deadline primarily it
    couples closely with JobTracker and that there are quite a few late
    patches that changed the APIs it depend on. It passed testing on
    Hudson on Thursday night. All new changes I added in the latest
    patch (thanks to Chris for his assist in the process) are trivial
    changes to accommodate either API changes or build changes (e.g.
    avro bumps up version from 1.0.0 to 1.1.0).

    The patch adds a new MapReduce simulator, Mumak, as a contrib
    project. it has sufficient usage to help us understand, debug,
    profile, and design-proof JobTracker or scheduler.

    Given the circumstances, I would like to request a vote to commit
    MAPREDUCE-728 to Hadoop 0.21.

    -Hong

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