Repository: spark Updated Branches: refs/heads/master 8a354bef5 -> 091c2c3ec
[SPARK-11056] Improve documentation of SBT build. This commit improves the documentation around building Spark to (1) recommend using SBT interactive mode to avoid the overhead of launching SBT and (2) refer to the wiki page that documents using SPARK_PREPEND_CLASSES to avoid creating the assembly jar for each compile. cc srowen Author: Kay Ousterhout <[email protected]> Closes #9068 from kayousterhout/SPARK-11056. Project: http://git-wip-us.apache.org/repos/asf/spark/repo Commit: http://git-wip-us.apache.org/repos/asf/spark/commit/091c2c3e Tree: http://git-wip-us.apache.org/repos/asf/spark/tree/091c2c3e Diff: http://git-wip-us.apache.org/repos/asf/spark/diff/091c2c3e Branch: refs/heads/master Commit: 091c2c3ecd69803d78c2b15a1487046701059d38 Parents: 8a354be Author: Kay Ousterhout <[email protected]> Authored: Mon Oct 12 14:23:29 2015 -0700 Committer: Kay Ousterhout <[email protected]> Committed: Mon Oct 12 14:23:29 2015 -0700 ---------------------------------------------------------------------- docs/building-spark.md | 5 +++++ 1 file changed, 5 insertions(+) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/spark/blob/091c2c3e/docs/building-spark.md ---------------------------------------------------------------------- diff --git a/docs/building-spark.md b/docs/building-spark.md index 4d929ee..743643c 100644 --- a/docs/building-spark.md +++ b/docs/building-spark.md @@ -216,6 +216,11 @@ can be set to control the SBT build. For example: build/sbt -Pyarn -Phadoop-2.3 assembly +To avoid the overhead of launching sbt each time you need to re-compile, you can launch sbt +in interactive mode by running `build/sbt`, and then run all build commands at the command +prompt. For more recommendations on reducing build time, refer to the +[wiki page](https://cwiki.apache.org/confluence/display/SPARK/Useful+Developer+Tools#UsefulDeveloperTools-ReducingBuildTimes). + # Testing with SBT Some of the tests require Spark to be packaged first, so always run `build/sbt assembly` the first time. The following is an example of a correct (build, test) sequence: --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
