Spark: Add support for Spark 4.1

.github/workflows/spark-ci.yml

@@ -72,17 +72,21 @@ jobs:
     strategy:
       matrix:
         jvm: [11, 17, 21]
-        spark: ['3.4', '3.5', '4.0']
+        spark: ['3.4', '3.5', '4.0', '4.1']
         scala: ['2.12', '2.13']
         exclude:
           # Spark 3.5 is the first version not failing on Java 21 (https://issues.apache.org/jira/browse/SPARK-42369)
           # Full Java 21 support is coming in Spark 4 (https://issues.apache.org/jira/browse/SPARK-43831)
           - jvm: 11
             spark: '4.0'
+          - jvm: 11
+            spark: '4.1'
           - jvm: 21
             spark: '3.4'
           - spark: '4.0'
             scala: '2.12'
+          - spark: '4.1'
+            scala: '2.12'
     env:
       SPARK_LOCAL_IP: localhost
     steps:

build.gradle

@@ -118,6 +118,9 @@ allprojects {
   group = "org.apache.iceberg"
   version = projectVersion
   repositories {
+    maven {
+      url = uri("https://repository.apache.org/content/repositories/orgapachespark-1504/")
+    }
     mavenCentral()
     mavenLocal()
   }

dev/stage-binaries.sh

@@ -20,7 +20,7 @@
 
 SCALA_VERSION=2.12
 FLINK_VERSIONS=1.20,2.0,2.1
-SPARK_VERSIONS=3.4,3.5,4.0
+SPARK_VERSIONS=3.4,3.5,4.0,4.1
 KAFKA_VERSIONS=3
 
 ./gradlew -Prelease -DscalaVersion=$SCALA_VERSION -DflinkVersions=$FLINK_VERSIONS -DsparkVersions=$SPARK_VERSIONS -DkafkaVersions=$KAFKA_VERSIONS publishApachePublicationToMavenRepository --no-parallel --no-configuration-cache

gradle.properties

@@ -18,8 +18,8 @@ jmhJsonOutputPath=build/reports/jmh/results.json
 jmhIncludeRegex=.*
 systemProp.defaultFlinkVersions=2.1
 systemProp.knownFlinkVersions=1.20,2.0,2.1
-systemProp.defaultSparkVersions=4.0
-systemProp.knownSparkVersions=3.4,3.5,4.0
+systemProp.defaultSparkVersions=4.1
+systemProp.knownSparkVersions=3.4,3.5,4.0,4.1
 systemProp.defaultKafkaVersions=3
 systemProp.knownKafkaVersions=3
 systemProp.defaultScalaVersion=2.12

gradle/libs.versions.toml

@@ -85,6 +85,7 @@ snowflake-jdbc = "3.26.1"
 spark34 = "3.4.4"
 spark35 = "3.5.7"
 spark40 = "4.0.1"
+spark41 = "4.1.0-preview3"
 sqlite-jdbc = "3.50.3.0"
 testcontainers = "1.21.3"
 tez08 = { strictly = "0.8.4"}  # see rich version usage explanation above

jmh.gradle

@@ -53,6 +53,11 @@ if (sparkVersions.contains("4.0")) {
   jmhProjects.add(project(":iceberg-spark:iceberg-spark-extensions-4.0_2.13"))
 }
 
+if (sparkVersions.contains("4.1")) {
+    jmhProjects.add(project(":iceberg-spark:iceberg-spark-4.1_2.13"))
+    jmhProjects.add(project(":iceberg-spark:iceberg-spark-extensions-4.1_2.13"))
+}
+
 configure(jmhProjects) {
   apply plugin: 'me.champeau.jmh'
   apply plugin: 'io.morethan.jmhreport'

settings.gradle

@@ -175,6 +175,18 @@ if (sparkVersions.contains("4.0")) {
   project(":iceberg-spark:spark-runtime-4.0_2.13").name = "iceberg-spark-runtime-4.0_2.13"
 }
 
+if (sparkVersions.contains("4.1")) {
+    include ":iceberg-spark:spark-4.1_2.13"
+    include ":iceberg-spark:spark-extensions-4.1_2.13"
+    include ":iceberg-spark:spark-runtime-4.1_2.13"
+    project(":iceberg-spark:spark-4.1_2.13").projectDir = file('spark/v4.1/spark')
+    project(":iceberg-spark:spark-4.1_2.13").name = "iceberg-spark-4.1_2.13"
+    project(":iceberg-spark:spark-extensions-4.1_2.13").projectDir = file('spark/v4.1/spark-extensions')
+    project(":iceberg-spark:spark-extensions-4.1_2.13").name = "iceberg-spark-extensions-4.1_2.13"
+    project(":iceberg-spark:spark-runtime-4.1_2.13").projectDir = file('spark/v4.1/spark-runtime')
+    project(":iceberg-spark:spark-runtime-4.1_2.13").name = "iceberg-spark-runtime-4.1_2.13"
+}
+
 if (kafkaVersions.contains("3")) {
   include 'kafka-connect'
   project(':kafka-connect').name = 'iceberg-kafka-connect'

spark/build.gradle

@@ -31,3 +31,7 @@ if (sparkVersions.contains("3.5")) {
 if (sparkVersions.contains("4.0")) {
   apply from: file("$projectDir/v4.0/build.gradle")
 }
+
+if (sparkVersions.contains("4.1")) {
+    apply from: file("$projectDir/v4.1/build.gradle")
+}