Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/8880#discussion_r47001872
--- Diff: core/src/main/scala/org/apache/spark/SparkContext.scala ---
@@ -447,6 +449,11 @@ class SparkContext(config: SparkConf) extends Logging
with ExecutorAllocationCli
_conf.set("spark.externalBlockStore.folderName",
externalBlockStoreFolderName)
if (master == "yarn-client") System.setProperty("SPARK_YARN_MODE",
"true")
+ if (CryptoConf.isShuffleEncrypted(_conf)) {
+ if (!SparkHadoopUtil.get.isYarnMode()) {
+ logError("Shuffle encryption is only supported in Yarn mode!")
--- End diff --
So, you probably want something stronger than just a log. Either:
- Fix the configuration so that encryption is disabled (and say that in the
log message).
- Throw an exception.
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