Rohith Sharma K S 557a245d83 YARN-5092. TestRMDelegationTokens fails intermittently. Contributed by Jason Lowe. 9 yıl önce
..
bin 6d943038f6 Cleanup changes during rebase with trunk (Vrushali C) 9 yıl önce
conf 23c3ff85a9 HADOOP-13209. replace slaves with workers (John Smith via aw) 9 yıl önce
dev-support 1ff6833bba YARN-5243. fix several rebase and other miscellaneous issues before merge. (Sangjin Lee via Varun Saxena) 9 yıl önce
hadoop-yarn-api da456ffd62 Preparing for 3.0.0-alpha2 development 9 yıl önce
hadoop-yarn-applications da456ffd62 Preparing for 3.0.0-alpha2 development 9 yıl önce
hadoop-yarn-client be34b2a8fd YARN-1126. Add validation of users input nodes-states options to nodes CLI. Contributed by Wei Yan. 9 yıl önce
hadoop-yarn-common 9ccf935b2c YARN-5309. Fix SSLFactory truststore reloader thread leak in TimelineClientImpl. Contributed by Weiwei Yang. 9 yıl önce
hadoop-yarn-registry da456ffd62 Preparing for 3.0.0-alpha2 development 9 yıl önce
hadoop-yarn-server 557a245d83 YARN-5092. TestRMDelegationTokens fails intermittently. Contributed by Jason Lowe. 9 yıl önce
hadoop-yarn-site da456ffd62 Preparing for 3.0.0-alpha2 development 9 yıl önce
shellprofile.d 730bc746f9 HADOOP-12930. Dynamic subcommands for hadoop shell scripts (aw) 9 yıl önce
README 8451ab5c01 HADOOP-9872. Improve protoc version handling and detection. (tucu) 12 yıl önce
pom.xml da456ffd62 Preparing for 3.0.0-alpha2 development 9 yıl önce

README

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

Requirements
-------------
Java: JDK 1.6
Maven: Maven 3

Setup
-----
Install protobuf 2.5.0 (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)


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
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 -Pnative (combined: mvn clean install assembly:assembly -Pnative)

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:

hadoop-yarn-api - Yarn's cross platform external interface

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

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

Utilities for understanding the code
------------------------------------
Almost all of the yarn components as well as the mapreduce framework use
state-machines for all the data objects. To understand those central pieces of
the code, a visual representation of the state-machines helps much. You can first
convert the state-machines into graphviz(.gv) format by
running:
mvn compile -Pvisualize
Then you can use the dot program for generating directed graphs and convert the above
.gv files to images. The graphviz package has the needed dot program and related
utilites.For e.g., to generate png files you can run:
dot -Tpng NodeManager.gv > NodeManager.png