[SPARK-30884][PYSPARK] Upgrade to Py4J 0.10.9

This PR aims to upgrade Py4J to `0.10.9` for better Python 3.7 support in Apache Spark 3.0.0 (master/branch-3.0). This is not for `branch-2.4`.

- Apache Spark 3.0.0 is using `Py4J 0.10.8.1` (released on 2018-10-21) because `0.10.8.1` was the first official release to support Python 3.7.
    - https://www.py4j.org/changelog.html#py4j-0-10-8-and-py4j-0-10-8-1
- `Py4J 0.10.9` was released on January 25th 2020 with better Python 3.7 support and `magic_member` bug fix.
    - https://github.com/bartdag/py4j/releases/tag/0.10.9
    - https://www.py4j.org/changelog.html#py4j-0-10-9

No.

Pass the Jenkins with the existing tests.

Closes #27641 from dongjoon-hyun/SPARK-30884.

Authored-by: Dongjoon Hyun <[email protected]>
Signed-off-by: Dongjoon Hyun <[email protected]>

Author: dongjoon-hyun

bin/pyspark

@@ -50,7 +50,7 @@ export PYSPARK_DRIVER_PYTHON_OPTS
 
 # Add the PySpark classes to the Python path:
 export PYTHONPATH="${SPARK_HOME}/python/:$PYTHONPATH"
-export PYTHONPATH="${SPARK_HOME}/python/lib/py4j-0.10.8.1-src.zip:$PYTHONPATH"
+export PYTHONPATH="${SPARK_HOME}/python/lib/py4j-0.10.9-src.zip:$PYTHONPATH"
 
 # Load the PySpark shell.py script when ./pyspark is used interactively:
 export OLD_PYTHONSTARTUP="$PYTHONSTARTUP"

bin/pyspark2.cmd

@@ -30,7 +30,7 @@ if "x%PYSPARK_DRIVER_PYTHON%"=="x" (
 )
 
 set PYTHONPATH=%SPARK_HOME%\python;%PYTHONPATH%
-set PYTHONPATH=%SPARK_HOME%\python\lib\py4j-0.10.8.1-src.zip;%PYTHONPATH%
+set PYTHONPATH=%SPARK_HOME%\python\lib\py4j-0.10.9-src.zip;%PYTHONPATH%
 
 set OLD_PYTHONSTARTUP=%PYTHONSTARTUP%
 set PYTHONSTARTUP=%SPARK_HOME%\python\pyspark\shell.py

core/pom.xml

@@ -414,7 +414,7 @@
     <dependency>
       <groupId>net.sf.py4j</groupId>
       <artifactId>py4j</artifactId>
-      <version>0.10.8.1</version>
+      <version>0.10.9</version>
     </dependency>
     <dependency>
       <groupId>org.apache.spark</groupId>

core/src/main/scala/org/apache/spark/api/python/PythonUtils.scala

@@ -27,7 +27,7 @@ import org.apache.spark.SparkContext
 import org.apache.spark.api.java.{JavaRDD, JavaSparkContext}
 
 private[spark] object PythonUtils {
-  val PY4J_ZIP_NAME = "py4j-0.10.8.1-src.zip"
+  val PY4J_ZIP_NAME = "py4j-0.10.9-src.zip"
 
   /** Get the PYTHONPATH for PySpark, either from SPARK_HOME, if it is set, or from our JAR */
   def sparkPythonPath: String = {

dev/deps/spark-deps-hadoop-2.7-hive-1.2

@@ -174,7 +174,7 @@ parquet-hadoop-bundle/1.6.0//parquet-hadoop-bundle-1.6.0.jar
 parquet-hadoop/1.10.1//parquet-hadoop-1.10.1.jar
 parquet-jackson/1.10.1//parquet-jackson-1.10.1.jar
 protobuf-java/2.5.0//protobuf-java-2.5.0.jar
-py4j/0.10.8.1//py4j-0.10.8.1.jar
+py4j/0.10.9//py4j-0.10.9.jar
 pyrolite/4.30//pyrolite-4.30.jar
 scala-collection-compat_2.12/2.1.1//scala-collection-compat_2.12-2.1.1.jar
 scala-compiler/2.12.10//scala-compiler-2.12.10.jar

dev/deps/spark-deps-hadoop-2.7-hive-2.3

@@ -188,7 +188,7 @@ parquet-format/2.4.0//parquet-format-2.4.0.jar
 parquet-hadoop/1.10.1//parquet-hadoop-1.10.1.jar
 parquet-jackson/1.10.1//parquet-jackson-1.10.1.jar
 protobuf-java/2.5.0//protobuf-java-2.5.0.jar
-py4j/0.10.8.1//py4j-0.10.8.1.jar
+py4j/0.10.9//py4j-0.10.9.jar
 pyrolite/4.30//pyrolite-4.30.jar
 scala-collection-compat_2.12/2.1.1//scala-collection-compat_2.12-2.1.1.jar
 scala-compiler/2.12.10//scala-compiler-2.12.10.jar

dev/deps/spark-deps-hadoop-3.2-hive-2.3

@@ -203,7 +203,7 @@ parquet-format/2.4.0//parquet-format-2.4.0.jar
 parquet-hadoop/1.10.1//parquet-hadoop-1.10.1.jar
 parquet-jackson/1.10.1//parquet-jackson-1.10.1.jar
 protobuf-java/2.5.0//protobuf-java-2.5.0.jar
-py4j/0.10.8.1//py4j-0.10.8.1.jar
+py4j/0.10.9//py4j-0.10.9.jar
 pyrolite/4.30//pyrolite-4.30.jar
 re2j/1.1//re2j-1.1.jar
 scala-collection-compat_2.12/2.1.1//scala-collection-compat_2.12-2.1.1.jar

python/README.md

@@ -29,4 +29,4 @@ The Python packaging for Spark is not intended to replace all of the other use c
 
 ## Python Requirements
 
-At its core PySpark depends on Py4J (currently version 0.10.8.1), but some additional sub-packages have their own extra requirements for some features (including numpy, pandas, and pyarrow).
+At its core PySpark depends on Py4J, but some additional sub-packages have their own extra requirements for some features (including numpy, pandas, and pyarrow).

python/docs/Makefile

@@ -7,7 +7,7 @@ SPHINXBUILD   ?= sphinx-build
 PAPER         ?=
 BUILDDIR      ?= _build
 
-export PYTHONPATH=$(realpath ..):$(realpath ../lib/py4j-0.10.8.1-src.zip)
+export PYTHONPATH=$(realpath ..):$(realpath ../lib/py4j-0.10.9-src.zip)
 
 # User-friendly check for sphinx-build
 ifeq ($(shell which $(SPHINXBUILD) >/dev/null 2>&1; echo $$?), 1)

python/docs/make2.bat

@@ -2,7 +2,7 @@
 
 REM Command file for Sphinx documentation
 
-set PYTHONPATH=..;..\lib\py4j-0.10.8.1-src.zip
+set PYTHONPATH=..;..\lib\py4j-0.10.9-src.zip
 
 
 if "%SPHINXBUILD%" == "" (