SPARK-11112 Fix Scala 2.11 compilation error in RDDInfo.scala

[tedyu]

As shown in https://amplab.cs.berkeley.edu/jenkins/view/Spark-QA-Compile/job/Spark-Master-Scala211-Compile/1946/console , compilation fails with:

[error] /home/jenkins/workspace/Spark-Master-Scala211-Compile/core/src/main/scala/org/apache/spark/storage/RDDInfo.scala:25: in class RDDInfo, multiple overloaded alternatives of constructor RDDInfo define default arguments.
[error] class RDDInfo(
[error]       

This PR tries to fix the compilation error

[srowen]

CC @andrewor14 / 7f74190
@tedyu you should probably attach this to SPARK-11112

[jaceklaskowski]

It worked fine for me.

➜  spark git:(master) ✗ ./build/mvn -Pyarn -Phadoop-2.6 -Dhadoop.version=2.7.1 -Dscala-2.11 -Phive -Phive-thriftserver -DskipTests clean install
...
[INFO] BUILD SUCCESS

Thanks!

[srowen]

This is a reasonable way to address the compilation failure, but I think this is also changing the API in a binary-incompatible way? MiMa will tell us. If so then actually we will need the new constructor to not take a final optional arg. Or, adjust callers to not actually need the optional arg and use the existing constructor, passing empty if needed.

[SparkQA]

Test build #45283 has finished for PR 9538 at commit bfaf2d5.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds the following public classes (experimental):\n * class ExecutionMemoryPool(\n * abstract class MemoryPool(lock: Object)\n * class StorageMemoryPool(lock: Object) extends MemoryPool(lock) with Logging\n * class LDAModel(JavaModelWrapper, JavaSaveable, Loader):\n

[tedyu]

MiMA check passed.

[srowen]

@andrewor14 does that seem OK to you? Looks like the PR went only to master so this needs to go to master?

[jaceklaskowski]

Knock, knock. Can we do someting with the patch as the build procedure for Scala 2.11 expanded with another step - git merge pr-9538 beside ./dev/change-scala-version.sh 2.11 and ./build/mvn -Pyarn -Phadoop-2.6 -Dhadoop.version=2.7.1 -Dscala-2.11 -Phive -Phive-thriftserver -DskipTests clean install :(

[tedyu]

Ping @andrewor14

[andrewor14]

Hi sorry I've been out for vacation I will have a look at this now.

[andrewor14]

Merging into master 1.6