Merging from apache trunk#4

Merged

vinayrpet merged 192 commits intovinayrpet:trunkfrom

Dec 22, 2014

Commits on Nov 26, 2014

HADOOP-11173. Improve error messages for some KeyShell commands.
umbrant
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YARN-2906. CapacitySchedulerPage shows HTML tags for a queue's Active Users. Contributed by Jason Lowe
jian-he
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YARN-2188. [YARN-1492] Client service for cache manager. (Chris Trezzo and Sangjin Lee via kasha)
kambatla
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Revert "MAPREDUCE-5785. Derive heap size or mapreduce.*.memory.mb automatically. (Gera Shegalov and Karthik Kambatla via kasha)"
kambatla
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HDFS-7440. Consolidate snapshot related operations in a single class. Contributed by Haohui Mai.
Haohui Mai
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HDFS-6803 Document DFSClient#DFSInputStream expectations reading and preading in concurrent context. (stack via stevel)
steveloughran
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HDFS-7310. Mover can give first priority to local DN if it has target storage type available in local DN. (Vinayakumar B via umamahesh)
umamaheswararao
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HDFS-7444. convertToBlockUnderConstruction should preserve BlockCollection. Contributed by Haohui Mai.
Haohui Mai
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HDFS-7444. Addendum patch to resolve conflicts between HDFS-7444 and HDFS-7310.
Haohui Mai
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YARN-2165. Added the sanity check for the numeric configuration values of the timeline service. Contributed by Vasanth kumar RJ.
zjshen14
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HADOOP-11257. Update "hadoop jar" documentation to warn against using it for launching yarn jars (iwasakims via cmccabe)
Colin Patrick Mccabe
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CHANGES.txt: add HADOOP-11257
Colin Patrick Mccabe
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Commits on Nov 28, 2014

HDFS-7210. Avoid two separate RPC's namenode.append() and namenode.getFileInfo() for an append call from DFSClient. (Vinayakumar B via umamahesh)
umamaheswararao
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Commits on Dec 2, 2014

Commits on Dec 3, 2014

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Commits on Dec 5, 2014

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Commits on Dec 7, 2014

HADOOP-11313. Adding a document about NativeLibraryChecker. Contributed by Tsuyoshi OZAWA.
cnauroth
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Commits on Dec 8, 2014

Commits on Dec 9, 2014

Commits on Dec 10, 2014

Commits on Dec 11, 2014

Commits on Dec 12, 2014

Commits on Dec 14, 2014

MAPREDUCE-4879. TeraOutputFormat may overwrite an existing output directory. (gera)
gerashegalov
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Commits on Dec 15, 2014

Commits on Dec 16, 2014

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Commits on Dec 19, 2014

Commits on Dec 21, 2014

Commits on Dec 22, 2014

HADOOP-11414. FileBasedIPList#readLines() can leak file descriptors. (ozawa)
oza
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