hadoop/hadoop-mapreduce/hadoop-yarn
2011-08-18 11:07:10 +00:00
..
bin MAPREDUCE-279. MapReduce 2.0. Merging MR-279 branch into trunk. Contributed by Arun C Murthy, Christopher Douglas, Devaraj Das, Greg Roelofs, Jeffrey Naisbitt, Josh Wills, Jonathan Eagles, Krishna Ramachandran, Luke Lu, Mahadev Konar, Robert Evans, Sharad Agarwal, Siddharth Seth, Thomas Graves, and Vinod Kumar Vavilapalli. 2011-08-18 11:07:10 +00:00
conf MAPREDUCE-279. MapReduce 2.0. Merging MR-279 branch into trunk. Contributed by Arun C Murthy, Christopher Douglas, Devaraj Das, Greg Roelofs, Jeffrey Naisbitt, Josh Wills, Jonathan Eagles, Krishna Ramachandran, Luke Lu, Mahadev Konar, Robert Evans, Sharad Agarwal, Siddharth Seth, Thomas Graves, and Vinod Kumar Vavilapalli. 2011-08-18 11:07:10 +00:00
dev-support MAPREDUCE-279. MapReduce 2.0. Merging MR-279 branch into trunk. Contributed by Arun C Murthy, Christopher Douglas, Devaraj Das, Greg Roelofs, Jeffrey Naisbitt, Josh Wills, Jonathan Eagles, Krishna Ramachandran, Luke Lu, Mahadev Konar, Robert Evans, Sharad Agarwal, Siddharth Seth, Thomas Graves, and Vinod Kumar Vavilapalli. 2011-08-18 11:07:10 +00:00
hadoop-yarn-api MAPREDUCE-279. MapReduce 2.0. Merging MR-279 branch into trunk. Contributed by Arun C Murthy, Christopher Douglas, Devaraj Das, Greg Roelofs, Jeffrey Naisbitt, Josh Wills, Jonathan Eagles, Krishna Ramachandran, Luke Lu, Mahadev Konar, Robert Evans, Sharad Agarwal, Siddharth Seth, Thomas Graves, and Vinod Kumar Vavilapalli. 2011-08-18 11:07:10 +00:00
hadoop-yarn-common MAPREDUCE-279. MapReduce 2.0. Merging MR-279 branch into trunk. Contributed by Arun C Murthy, Christopher Douglas, Devaraj Das, Greg Roelofs, Jeffrey Naisbitt, Josh Wills, Jonathan Eagles, Krishna Ramachandran, Luke Lu, Mahadev Konar, Robert Evans, Sharad Agarwal, Siddharth Seth, Thomas Graves, and Vinod Kumar Vavilapalli. 2011-08-18 11:07:10 +00:00
hadoop-yarn-server MAPREDUCE-279. MapReduce 2.0. Merging MR-279 branch into trunk. Contributed by Arun C Murthy, Christopher Douglas, Devaraj Das, Greg Roelofs, Jeffrey Naisbitt, Josh Wills, Jonathan Eagles, Krishna Ramachandran, Luke Lu, Mahadev Konar, Robert Evans, Sharad Agarwal, Siddharth Seth, Thomas Graves, and Vinod Kumar Vavilapalli. 2011-08-18 11:07:10 +00:00
pom.xml MAPREDUCE-279. MapReduce 2.0. Merging MR-279 branch into trunk. Contributed by Arun C Murthy, Christopher Douglas, Devaraj Das, Greg Roelofs, Jeffrey Naisbitt, Josh Wills, Jonathan Eagles, Krishna Ramachandran, Luke Lu, Mahadev Konar, Robert Evans, Sharad Agarwal, Siddharth Seth, Thomas Graves, and Vinod Kumar Vavilapalli. 2011-08-18 11:07:10 +00:00
README MAPREDUCE-279. MapReduce 2.0. Merging MR-279 branch into trunk. Contributed by Arun C Murthy, Christopher Douglas, Devaraj Das, Greg Roelofs, Jeffrey Naisbitt, Josh Wills, Jonathan Eagles, Krishna Ramachandran, Luke Lu, Mahadev Konar, Robert Evans, Sharad Agarwal, Siddharth Seth, Thomas Graves, and Vinod Kumar Vavilapalli. 2011-08-18 11:07:10 +00:00

YARN (YET ANOTHER RESOURCE NEGOTIATOR or YARN Application Resource Negotiator)
------------------------------------------------------------------------------

Requirements
-------------
Java: JDK 1.6
Maven: Maven 2

Setup
-----
Install protobuf 2.4.0a or higher (Download from http://code.google.com/p/protobuf/downloads/list)
 - install the protoc executable (configure, make, make install)
 - install the maven artifact (cd java; mvn install)
Installing protoc requires gcc 4.1.x or higher.
If the make step fails with (Valid until a fix is released for protobuf 2.4.0a)
    ./google/protobuf/descriptor.h:1152: error:
    `google::protobuf::internal::Mutex*google::protobuf::DescriptorPool::mutex_'
    is private
  Replace descriptor.cc with http://protobuf.googlecode.com/svn-history/r380/trunk/src/google/protobuf/descriptor.cc


Quick Maven Tips
----------------
clean workspace: mvn clean
compile and test: mvn install
skip tests: mvn install -DskipTests
skip test execution but compile: mvn install -Dmaven.test.skip.exec=true
skip native build: mvn -fn install -P-cbuild
clean and test: mvn clean install
run selected test after compile: mvn test -Dtest=TestClassName (combined: mvn clean install -Dtest=TestClassName)
create runnable binaries after install: mvn assembly:assembly (combined: mvn clean install assembly:assembly)


Eclipse Projects
----------------
http://maven.apache.org/guides/mini/guide-ide-eclipse.html

1. Generate .project and .classpath files in all maven modules
mvn eclipse:eclipse
CAUTION: If the project structure has changed from your previous workspace, clean up all .project and .classpath files recursively. Then run:
mvn eclipse:eclipse

2. Import the projects in eclipse.

3. Set the environment variable M2_REPO to point to your .m2/repository location.

NetBeans Projects
-----------------

NetBeans has builtin support of maven projects. Just "Open Project..."
and everything is setup automatically. Verified with NetBeans 6.9.1.


Custom Hadoop Dependencies
--------------------------

By default Hadoop dependencies are specified in the top-level pom.xml
properties section. One can override them via -Dhadoop-common.version=...
on the command line. ~/.m2/settings.xml can also be used to specify
these properties in different profiles, which is useful for IDEs.

Modules
-------
YARN consists of multiple modules. The modules are listed below as per the directory structure:

yarn-api - Yarn's cross platform external interface

yarn-common - Utilities which can be used by yarn clients and server

yarn-server - Implementation of the yarn-api
	yarn-server-common - APIs shared between resourcemanager and nodemanager
	yarn-server-nodemanager (TaskTracker replacement)
	yarn-server-resourcemanager (JobTracker replacement)