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authorAdam Roberts <aroberts@uk.ibm.com>2016-06-14 13:59:01 +0100
committerSean Owen <sowen@cloudera.com>2016-06-14 13:59:01 +0100
commita431e3f1f8575e2498650ac767e69fbc903e9929 (patch)
tree63f5b690b9846b104de98d921839f3d1fb983ebe
parent96c3500c666235f1e746cf17b188930280489d50 (diff)
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[SPARK-15821][DOCS] Include parallel build info
## What changes were proposed in this pull request? We should mention that users can build Spark using multiple threads to decrease build times; either here or in "Building Spark" ## How was this patch tested? Built on machines with between one core to 192 cores using mvn -T 1C and observed faster build times with no loss in stability In response to the question here https://issues.apache.org/jira/browse/SPARK-15821 I think we should suggest this option as we know it works for Spark and can result in faster builds Author: Adam Roberts <aroberts@uk.ibm.com> Closes #13562 from a-roberts/patch-3.
-rw-r--r--README.md2
-rwxr-xr-xdev/make-distribution.sh4
2 files changed, 4 insertions, 2 deletions
diff --git a/README.md b/README.md
index d5804d1a20..c77c429e57 100644
--- a/README.md
+++ b/README.md
@@ -25,6 +25,8 @@ To build Spark and its example programs, run:
build/mvn -DskipTests clean package
(You do not need to do this if you downloaded a pre-built package.)
+
+You can build Spark using more than one thread by using the -T option with Maven, see ["Parallel builds in Maven 3"](https://cwiki.apache.org/confluence/display/MAVEN/Parallel+builds+in+Maven+3).
More detailed documentation is available from the project site, at
["Building Spark"](http://spark.apache.org/docs/latest/building-spark.html).
For developing Spark using an IDE, see [Eclipse](https://cwiki.apache.org/confluence/display/SPARK/Useful+Developer+Tools#UsefulDeveloperTools-Eclipse)
diff --git a/dev/make-distribution.sh b/dev/make-distribution.sh
index 4f7544f6ea..9be4fdfa51 100755
--- a/dev/make-distribution.sh
+++ b/dev/make-distribution.sh
@@ -53,7 +53,7 @@ while (( "$#" )); do
--hadoop)
echo "Error: '--hadoop' is no longer supported:"
echo "Error: use Maven profiles and options -Dhadoop.version and -Dyarn.version instead."
- echo "Error: Related profiles include hadoop-2.2, hadoop-2.3 and hadoop-2.4."
+ echo "Error: Related profiles include hadoop-2.2, hadoop-2.3, hadoop-2.4, hadoop-2.6 and hadoop-2.7."
exit_with_usage
;;
--with-yarn)
@@ -150,7 +150,7 @@ export MAVEN_OPTS="${MAVEN_OPTS:--Xmx2g -XX:MaxPermSize=512M -XX:ReservedCodeCac
# Store the command as an array because $MVN variable might have spaces in it.
# Normal quoting tricks don't work.
# See: http://mywiki.wooledge.org/BashFAQ/050
-BUILD_COMMAND=("$MVN" clean package -DskipTests $@)
+BUILD_COMMAND=("$MVN" -T 1C clean package -DskipTests $@)
# Actually build the jar
echo -e "\nBuilding with..."