cc @Holden Karau <holden.ka...@gmail.com> @DB Tsai <dbt...@dbtsai.com> @Imran Rashid <iras...@apache.org> @Mridul Muralidharan <mri...@gmail.com> FYI
On Thu, 9 Dec 2021 at 14:07, angers zhu <angers....@gmail.com> wrote: > Hi all, > > Since Spark 3.2, we have supported Hadoop 3.3.1 now, but its profile name > is *hadoop-3.2* (and *hadoop-2.7*) that is not correct. > So we made a change in https://github.com/apache/spark/pull/34715 > Starting from Spark 3.3, we use hadoop profile *hadoop-2* and *hadoop-3 *, > and default hadoop profile is hadoop-3. > Profile changes > > *hadoop-2.7* changed to *hadoop-2* > *hadoop-3.2* changed to *hadoop-3* > Release tar file > > Spark-3.3.0 with profile hadoop-3: *spark-3.3.0-bin-hadoop3.tgz* > Spark-3.3.0 with profile hadoop-2: *spark-3.3.0-bin-hadoop2.tgz* > > For Spark 3.2.0, the release tar file was, for example, > *spark-3.2.0-bin-hadoop3.2.tgz*. > Pip install option changes > > For PySpark with/without a specific Hadoop version, you can install it by > using PYSPARK_HADOOP_VERSION environment variables as below (Hadoop 3): > > PYSPARK_HADOOP_VERSION=3 pip install pyspark > > For Hadoop 2: > > PYSPARK_HADOOP_VERSION=2 pip install pyspark > > Supported values in PYSPARK_HADOOP_VERSION are now: > > - without: Spark pre-built with user-provided Apache Hadoop > - 2: Spark pre-built for Apache Hadoop 2. > - 3: Spark pre-built for Apache Hadoop 3.3 and later (default) > > Building Spark and Specifying the Hadoop Version > <https://spark.apache.org/docs/latest/building-spark.html#specifying-the-hadoop-version-and-enabling-yarn> > > You can specify the exact version of Hadoop to compile against through the > hadoop.version property. > Example: > > ./build/mvn -Pyarn -Dhadoop.version=3.3.0 -DskipTests clean package > > or you can specify *hadoop-3* profile > > ./build/mvn -Pyarn -Phadoop-3 -Dhadoop.version=3.3.0 -DskipTests clean package > > If you want to build with Hadoop 2.x, enable *hadoop-2* profile: > > ./build/mvn -Phadoop-2 -Pyarn -Dhadoop.version=2.8.5 -DskipTests clean package > > Notes > > In the current master, it will use the default Hadoop 3 if you continue to > use -Phadoop-2.7 and -Phadoop-3.2 to build Spark > because Maven or SBT will just warn and ignore these non-existent profiles. > Please change profiles to -Phadoop-2 or -Phadoop-3. >
