Vrushali C 396fcee0b0 YARN-9150 Making TimelineSchemaCreator support different backends for Timeline Schema Creation in ATSv2. Contributed by Sushil Ks 6 年之前
..
bin 8b98dba7ee YARN-7190 Ensure only NM classpath in 2.x gets TSv2 related hbase jars, not the user classpath (Contributed by Varun Saxena via Vrushali C) 7 年之前
conf 2e3b7130c5 YARN-6623. Add support to turn off launching privileged containers in the container-executor. (Varun Vasudev via wangda) 7 年之前
dev-support 931987f470 YARN-7432. Fix DominantResourceFairnessPolicy serializable findbugs issues. (Daniel Templeton via Subru). 7 年之前
hadoop-yarn-api 396fcee0b0 YARN-9150 Making TimelineSchemaCreator support different backends for Timeline Schema Creation in ATSv2. Contributed by Sushil Ks 6 年之前
hadoop-yarn-applications 6c8fc8f786 HADOOP-15731. TestDistributedShell fails on Windows. Contributed by Botong Huang. 6 年之前
hadoop-yarn-client c6c5e94de4 YARN-6616: YARN AHS shows submitTime for jobs same as startTime. Contributed by Prabhu Joseph 6 年之前
hadoop-yarn-common 2a7dcc509b YARN-7171: RM UI should sort memory / cores numerically. Contributed by Ahmed Hussein 6 年之前
hadoop-yarn-registry 71a55bebfb Preparing for 2.10.0 development 7 年之前
hadoop-yarn-server 396fcee0b0 YARN-9150 Making TimelineSchemaCreator support different backends for Timeline Schema Creation in ATSv2. Contributed by Sushil Ks 6 年之前
hadoop-yarn-site 56a27284a7 YARN-7502. Nodemanager restart docs should describe nodemanager supervised property. Contributed by Suma Shivaprasad. 6 年之前
hadoop-yarn-ui 300d65c4d7 YARN-8747. [UI2] YARN UI2 page loading failed due to js error under some time zone configuration. Contributed by collinma. 6 年之前
README eee2b37a3a HADOOP-9872. Improve protoc version handling and detection. (tucu) 11 年之前
pom.xml 71a55bebfb Preparing for 2.10.0 development 7 年之前

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