Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/21251#discussion_r186567456
--- Diff: core/src/main/scala/org/apache/spark/deploy/SparkSubmit.scala ---
@@ -1204,7 +1205,36 @@ private[spark] object SparkSubmitUtils {
/** A nice function to use in tests as well. Values are dummy strings. */
def getModuleDescriptor: DefaultModuleDescriptor =
DefaultModuleDescriptor.newDefaultInstance(
- ModuleRevisionId.newInstance("org.apache.spark",
"spark-submit-parent", "1.0"))
+ // Include UUID in module name, so multiple clients resolving maven
coordinate at the same time
+ // do not modify the same resolution file concurrently.
+ ModuleRevisionId.newInstance("org.apache.spark",
+ s"spark-submit-parent-${UUID.randomUUID.toString}",
+ "1.0"))
+
+ /**
+ * clear ivy resolution from current launch. The resolution file is
usually at
--- End diff --
nit: start comment with capital letter.
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