[SPARK-13579][BUILD] Stop building the main Spark assembly.

This change modifies the "assembly/" module to just copy needed
dependencies to its build directory, and modifies the packaging
script to pick those up (and remove duplicate jars packages in the
examples module).

I also made some minor adjustments to dependencies to remove some
test jars from the final packaging, and remove jars that conflict with each
other when packaged separately (e.g. servlet api).

Also note that this change restores guava in applications' classpaths, even
though it's still shaded inside Spark. This is now needed for the Hadoop
libraries that are packaged with Spark, which now are not processed by
the shade plugin.

Author: Marcelo Vanzin <vanzin@cloudera.com>

Closes #11796 from vanzin/SPARK-13579.

1 files changed, 6 insertions, 5 deletions

diff --git a/dev/run-tests.py b/dev/run-tests.py
index c2944747ee..cbe347274e 100755
--- a/dev/run-tests.py
+++ b/dev/run-tests.py
@@ -350,7 +350,7 @@ def build_spark_sbt(hadoop_version):
 def build_spark_assembly_sbt(hadoop_version):
     # Enable all of the profiles for the build:
     build_profiles = get_hadoop_profiles(hadoop_version) + modules.root.build_profile_flags
-    sbt_goals = ["assembly/assembly"]
+    sbt_goals = ["assembly/package"]
     profiles_and_goals = build_profiles + sbt_goals
     print("[info] Building Spark assembly (w/Hive 1.2.1) using SBT with these arguments: ",
           " ".join(profiles_and_goals))
@@ -371,9 +371,10 @@ def build_apache_spark(build_tool, hadoop_version):
         build_spark_sbt(hadoop_version)
 
 
-def detect_binary_inop_with_mima():
+def detect_binary_inop_with_mima(hadoop_version):
+    build_profiles = get_hadoop_profiles(hadoop_version) + modules.root.build_profile_flags
     set_title_and_block("Detecting binary incompatibilities with MiMa", "BLOCK_MIMA")
-    run_cmd([os.path.join(SPARK_HOME, "dev", "mima")])
+    run_cmd([os.path.join(SPARK_HOME, "dev", "mima")] + build_profiles)
 
 
 def run_scala_tests_maven(test_profiles):
@@ -571,8 +572,8 @@ def main():
     # backwards compatibility checks
     if build_tool == "sbt":
         # Note: compatibility tests only supported in sbt for now
-        detect_binary_inop_with_mima()
-        # Since we did not build assembly/assembly before running dev/mima, we need to
+        detect_binary_inop_with_mima(hadoop_version)
+        # Since we did not build assembly/package before running dev/mima, we need to
         # do it here because the tests still rely on it; see SPARK-13294 for details.
         build_spark_assembly_sbt(hadoop_version)