Github user pwendell commented on a diff in the pull request:
https://github.com/apache/spark/pull/629#discussion_r12266975
--- Diff: docs/building-with-maven.md ---
@@ -42,22 +54,40 @@ For Apache Hadoop versions 1.x, Cloudera CDH MRv1, and
other Hadoop versions wit
# Apache Hadoop 0.23.x
$ mvn -Phadoop-0.23 -Dhadoop.version=0.23.7 -DskipTests clean package
-For Apache Hadoop 2.x, 0.23.x, Cloudera CDH MRv2, and other Hadoop
versions with YARN, you can enable the "yarn-alpha" or "yarn" profile and set
the "hadoop.version", "yarn.version" property. Note that Hadoop 0.23.X requires
a special `-Phadoop-0.23` profile:
+For Apache Hadoop 2.x, 0.23.x, Cloudera CDH, and other Hadoop versions
with YARN, you can enable the "yarn-alpha" or "yarn" profile and optionally set
the "yarn.version" property if it is different from "hadoop.version". The
additional build profile required depends on the YARN version:
+
+<table class="table">
+ <thead>
+ <tr><th>YARN version</th><th>Profile required</th></tr>
+ </thead>
+ <tbody>
+ <tr><td>0.23.x to 2.1.x</td><td>yarn-alpha</td></tr>
+ <tr><td>2.2.x and later</td><td>yarn</td></tr>
+ </tbody>
+</table>
+
+Examples:
# Apache Hadoop 2.0.5-alpha
$ mvn -Pyarn-alpha -Dhadoop.version=2.0.5-alpha -DskipTests clean
package
- # Cloudera CDH 4.2.0 with MapReduce v2
+ # Cloudera CDH 4.2.0
$ mvn -Pyarn-alpha -Dhadoop.version=2.0.0-cdh4.2.0 -DskipTests clean
package
- # Apache Hadoop 2.2.X (e.g. 2.2.0 as below) and newer
- $ mvn -Pyarn -Dhadoop.version=2.2.0 -DskipTests clean package
-
# Apache Hadoop 0.23.x
- $ mvn -Pyarn-alpha -Phadoop-0.23 -Dhadoop.version=0.23.7
-Dyarn.version=0.23.7 -DskipTests clean package
+ $ mvn -Pyarn-alpha -Phadoop-0.23 -Dhadoop.version=0.23.7 -DskipTests
clean package
+
+ # Apache Hadoop 2.2.X
+ $ mvn -Pyarn -Phadoop-2.2 -DskipTests clean package
+
+ # Apache Hadoop 2.3.X and newer
+ $ mvn -Pyarn -Phadoop-2.3 -DskipTests clean package
+
+ # Apache Hadoop 2.4.X as a custom version
+ $ mvn -Pyarn -Phadoop-2.3 -Dhadoop.version=2.4.0 -DskipTests clean
package
--- End diff --
For instance, right now we suggest to use this for all hadoop-2.3+, but who
knows if Hadoop will change it's dep graph in the future such that those builds
don't actually work. It might be better to just create individual profiles for
the ones we know we currently support via this workaround.
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