See http://hudson.zones.apache.org/hudson/job/Hadoop-trunk/542/changes
Changes:
[cdouglas] HADOOP-3716. Prevent listStatus in KosmosFileSystem from returning
null for valid, empty directories. Contributed by Sriram Rao.
[acmurthy] HADOOP-3647. Add debug logs to help track down a very occassional,
hard-to-reproduce, bug in shuffle/merge on the reducer.
[ddas] HADOOP-3478. Improves the handling of map output fetching. Now the
randomization is by the hosts (and not the map outputs themselves). Contributed
by Jothi Padmanabhan.
[cdouglas] HADOOP-3721. Refactor CompositeRecordReader and related mapred.join
classes
to make them clearer.
[cdouglas] HADOOP-3684. Add a cloning function to the contrib/data_join
framework
permitting users to define a more efficient method for cloning values from
the reduce than serialization/deserialization. Contributed by Runping Qi.
[cdouglas] HADOOP-3718. Fix KFSOutputStream::write(int) to output a byte
instead of
an int, per the OutputStream contract. Contributed by Sriram Rao.
[cdouglas] HADOOP-3726. Throw exceptions from TestCLI setup and teardown
instead of
swallowing them. Contributed by Steve Loughran.
[cdouglas] HADOOP-3725. Prevent TestMiniMRMapDebugScript from swallowing
exceptions.
Contributed by Steve Loughran.
[ddas] HADOOP-3149. Adds a way in which map/reducetasks can create multiple
outputs. Contributed by Alejandro Abdelnur.
[ddas] HADOOP-3711. Fixes the Streaming input parsing to properly find the
separator. Contributed by Amareshwari Sriramadasu.
[rangadi] HADOOP-3328. When client is writing data to DFS, only the last
datanode in the pipeline needs to verify the checksum. Saves around
30% CPU on intermediate datanodes. (rangadi)
[yhemanth] HADOOP-3695. Provide an ability to start multiple workers per node.
Contributed by Vinod Kumar Vavilapalli
[cdouglas] HADOOP-3706. Fix a ClassLoader issue in the mapred.join Parser that
prevents it from loading user-specified InputFormats.
Contributed by Jingkei Ly.
[cdouglas] HADOOP-3630. Fix NullPointerException in CompositeRecordReader from
empty
sources.
[hairong] HADOOP-3685. Unbalanced replication target. Contributed by Hairong
Kuang.
[shv] HADOOP-3002. Hold off block removal while in safe mode. Contributed by
Konstantin Shvachko.
[rangadi] HADOOP-3681. DFSClient can get into an infinite loop while closing
a file if there are some errors. (Lohit Vijayarenu via rangadi)
[cdouglas] HADOOP-3660. Add replication factor for injecting blocks in simulated
datanodes. Contributed by Sanjay Radia.
[rangadi] HADOOP-3673. Avoid deadlock caused by DataNode RPC receoverBlock().
(Tsz Wo (Nicholas), SZE via rangadi)
------------------------------------------
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