[DOCS][BUILD] Add instruction to use change-version-to-2.11.sh in 'Building for Scala 2.11'.

[ueshin]

To build with Scala 2.11, we have to execute change-version-to-2.11.sh before Maven execute, otherwise inter-module dependencies are broken.

[SparkQA]

Test build #23599 has started for PR 3361 at commit 1d29126.

• This patch merges cleanly.

[SparkQA]

Test build #23599 has finished for PR 3361 at commit 1d29126.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds the following public classes (experimental):
  • class LinearBinaryClassificationModel(LinearModel):
  • class LogisticRegressionModel(LinearBinaryClassificationModel):
  • class LogisticRegressionWithLBFGS(object):
  • class SVMModel(LinearBinaryClassificationModel):
  • class Rating(namedtuple("Rating", ["user", "product", "rating"])):
  • class RDDRangeSampler(RDDSamplerBase):
  • class SizeLimitedStream(object):
  • class CompressedStream(object):
  • class LargeObjectSerializer(Serializer):
  • class CompressedSerializer(Serializer):

[AmplabJenkins]

Test PASSed.
Refer to this link for build results (access rights to CI server needed):
https://amplab.cs.berkeley.edu/jenkins//job/SparkPullRequestBuilder/23599/
Test PASSed.

[sryza]

+1

[pwendell]

Good call - thanks for this.

[JoshRosen]

Looks like this was pulled in, but it looks like GitHub didn't close it for some reason.

[ueshin]

Ah, should I close this?

[JoshRosen]

@ueshin, I think so, since 0fcd24c is now in master and e07dbd8 is in 1.2. Thanks!

[ueshin]

I see, I'll close this. Thanks!