Github user felixcheung commented on a diff in the pull request: https://github.com/apache/spark/pull/19624#discussion_r148192869 --- Diff: R/pkg/R/sparkR.R --- @@ -420,6 +420,18 @@ sparkR.session <- function( enableHiveSupport) assign(".sparkRsession", sparkSession, envir = .sparkREnv) } + + # Check if version number of SparkSession matches version number of SparkR package + jvmVersion <- callJMethod(sparkSession, "version") + # Remove -SNAPSHOT from jvm versions + jvmVersion <- gsub("-SNAPSHOT", "", jvmVersion) + rPackageVersion <- paste0(packageVersion("SparkR")) + + if (jvmVersion != rPackageVersion) { + warning(paste("Version mismatch between Spark JVM and SparkR package. JVM version was", + jvmVersion, ", while R package version was", rPackageVersion)) --- End diff -- not sure if it's important, perhaps print the original version (ie. with -SNAPSHOT)
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