GitHub user JoshRosen opened a pull request:
https://github.com/apache/spark/pull/10608
[SPARK-6363][BUILD] Make Scala 2.11 the default Scala version
This patch changes Spark's build to make Scala 2.11 the default Scala
version. To be clear, this does not mean that Spark will stop supporting Scala
2.10: users will still be able to compile Spark for Scala 2.10 by following the
instructions on the "Building Spark" page; however, it does mean that Scala
2.11 will be the default Scala version used by our CI builds (including pull
request builds).
The Scala 2.11 compiler is faster than 2.10, so I think we'll be able to
look forward to a slight speedup in our CI builds (it looks like it's about 2X
faster for the Maven compile-only builds, for instance).
After this patch is merged, I'll update Jenkins to add new compile-only
jobs to ensure that Scala 2.10 compilation doesn't break.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/JoshRosen/spark SPARK-6363
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/10608.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #10608
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commit c8c4432960c27e0c35f74a91ffa425477f27fca1
Author: Josh Rosen <[email protected]>
Date: 2016-01-05T19:47:01Z
Run `dev/change-scala-version.sh 2.11`
commit 3bd72a878e2a286dde7152ed958c3a2ce5196db4
Author: Josh Rosen <[email protected]>
Date: 2016-01-05T20:59:35Z
Update Building Spark doc
commit ad1c0bb0f80b68ec65469468eaf3a7ac82a3cca5
Author: Josh Rosen <[email protected]>
Date: 2016-01-05T22:55:41Z
Update the build scripts to reflect new default.
commit 623a929567733a31d0058b4485ff62cedb121b22
Author: Josh Rosen <[email protected]>
Date: 2016-01-05T23:14:06Z
Update dependency manifests.
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