[SPARK-10878][CORE] Fix race condition when multiple clients resolves artifacts at the same time

## What changes were proposed in this pull request?

When multiple clients attempt to resolve artifacts via the `--packages` parameter, they could run into race condition when they each attempt to modify the dummy `org.apache.spark-spark-submit-parent-default.xml` file created in the default ivy cache dir.
This PR changes the behavior to encode UUID in the dummy module descriptor so each client will operate on a different resolution file in the ivy cache dir. In addition, this patch changes the behavior of when and which resolution files are cleaned to prevent accumulation of resolution files in the default ivy cache dir.

Since this PR is a successor of apache#18801, close apache#18801. Many codes were ported from apache#18801. **Many efforts were put here. I think this PR should credit to Victsm .**

## How was this patch tested?

added UT into `SparkSubmitUtilsSuite`

Author: Kazuaki Ishizaki <[email protected]>

Closes apache#21251 from kiszk/SPARK-10878.

Author: kiszk

core/src/main/scala/org/apache/spark/deploy/SparkSubmit.scala

@@ -22,6 +22,7 @@ import java.lang.reflect.{InvocationTargetException, Modifier, UndeclaredThrowab
 import java.net.URL
 import java.security.PrivilegedExceptionAction
 import java.text.ParseException
+import java.util.UUID
 
 import scala.annotation.tailrec
 import scala.collection.mutable.{ArrayBuffer, HashMap, Map}
@@ -1204,7 +1205,33 @@ 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-${UUID.randomUUID.toString}",
+      "1.0"))
+
+  /**
+   * Clear ivy resolution from current launch. The resolution file is usually at
+   * ~/.ivy2/org.apache.spark-spark-submit-parent-$UUID-default.xml,
+   * ~/.ivy2/resolved-org.apache.spark-spark-submit-parent-$UUID-1.0.xml, and
+   * ~/.ivy2/resolved-org.apache.spark-spark-submit-parent-$UUID-1.0.properties.
+   * Since each launch will have its own resolution files created, delete them after
+   * each resolution to prevent accumulation of these files in the ivy cache dir.
+   */
+  private def clearIvyResolutionFiles(
+      mdId: ModuleRevisionId,
+      ivySettings: IvySettings,
+      ivyConfName: String): Unit = {
+    val currentResolutionFiles = Seq(
+      s"${mdId.getOrganisation}-${mdId.getName}-$ivyConfName.xml",
+      s"resolved-${mdId.getOrganisation}-${mdId.getName}-${mdId.getRevision}.xml",
+      s"resolved-${mdId.getOrganisation}-${mdId.getName}-${mdId.getRevision}.properties"
+    )
+    currentResolutionFiles.foreach { filename =>
+      new File(ivySettings.getDefaultCache, filename).delete()
+    }
+  }
 
   /**
    * Resolves any dependencies that were supplied through maven coordinates
@@ -1255,14 +1282,6 @@ private[spark] object SparkSubmitUtils {
 
         // A Module descriptor must be specified. Entries are dummy strings
         val md = getModuleDescriptor
-        // clear ivy resolution from previous launches. The resolution file is usually at
-        // ~/.ivy2/org.apache.spark-spark-submit-parent-default.xml. In between runs, this file
-        // leads to confusion with Ivy when the files can no longer be found at the repository
-        // declared in that file/
-        val mdId = md.getModuleRevisionId
-        val previousResolution = new File(ivySettings.getDefaultCache,
-          s"${mdId.getOrganisation}-${mdId.getName}-$ivyConfName.xml")
-        if (previousResolution.exists) previousResolution.delete
 
         md.setDefaultConf(ivyConfName)
 
@@ -1283,7 +1302,10 @@ private[spark] object SparkSubmitUtils {
           packagesDirectory.getAbsolutePath + File.separator +
             "[organization]_[artifact]-[revision](-[classifier]).[ext]",
           retrieveOptions.setConfs(Array(ivyConfName)))
-        resolveDependencyPaths(rr.getArtifacts.toArray, packagesDirectory)
+        val paths = resolveDependencyPaths(rr.getArtifacts.toArray, packagesDirectory)
+        val mdId = md.getModuleRevisionId
+        clearIvyResolutionFiles(mdId, ivySettings, ivyConfName)
+        paths
       } finally {
         System.setOut(sysOut)
       }

core/src/test/scala/org/apache/spark/deploy/SparkSubmitUtilsSuite.scala

@@ -256,4 +256,19 @@ class SparkSubmitUtilsSuite extends SparkFunSuite with BeforeAndAfterAll {
       assert(jarPath.indexOf("mydep") >= 0, "should find dependency")
     }
   }
+
+  test("SPARK-10878: test resolution files cleaned after resolving artifact") {
+    val main = new MavenCoordinate("my.great.lib", "mylib", "0.1")
+
+    IvyTestUtils.withRepository(main, None, None) { repo =>
+      val ivySettings = SparkSubmitUtils.buildIvySettings(Some(repo), Some(tempIvyPath))
+      val jarPath = SparkSubmitUtils.resolveMavenCoordinates(
+        main.toString,
+        ivySettings,
+        isTest = true)
+      val r = """.*org.apache.spark-spark-submit-parent-.*""".r
+      assert(!ivySettings.getDefaultCache.listFiles.map(_.getName)
+        .exists(r.findFirstIn(_).isDefined), "resolution files should be cleaned")
+    }
+  }
 }