address comment

Author: shahidki31

sql/hive-thriftserver/src/main/scala/org/apache/spark/sql/hive/thriftserver/ui/HiveThriftServer2EventManager.scala

@@ -35,7 +35,8 @@ private[thriftserver] class HiveThriftServer2EventManager(sc: SparkContext) {
   }
 
   def onSessionClosed(sessionId: String): Unit = {
-    postLiveListenerBus(SparkListenerSessionClosed(sessionId, System.currentTimeMillis()))
+    postLiveListenerBus(SparkListenerThriftServerSessionClosed(sessionId,
+      System.currentTimeMillis()))
   }
 
   def onStatementStart(
@@ -77,7 +78,7 @@ private[thriftserver] case class SparkListenerThriftServerSessionCreated(
     userName: String,
     startTime: Long) extends SparkListenerEvent
 
-private[thriftserver] case class SparkListenerSessionClosed(
+private[thriftserver] case class SparkListenerThriftServerSessionClosed(
     sessionId: String, finishTime: Long) extends SparkListenerEvent
 
 private[thriftserver] case class SparkListenerThriftServerOperationStart(

sql/hive-thriftserver/src/main/scala/org/apache/spark/sql/hive/thriftserver/ui/HiveThriftServer2Listener.scala

@@ -50,7 +50,7 @@ private[thriftserver] class HiveThriftServer2Listener(
 
   // How often to update live entities. -1 means "never update" when replaying applications,
   // meaning only the last write will happen. For live applications, this avoids a few
-  // operations that we can live without when rapidly processing incoming task events.
+  // operations that we can live without when rapidly processing incoming events.
   private val liveUpdatePeriodNs = if (live) sparkConf.get(LIVE_ENTITY_UPDATE_PERIOD) else -1L
 
   // Returns true if this listener has no live data. Exposed for tests only.
@@ -88,11 +88,6 @@ private[thriftserver] class HiveThriftServer2Listener(
       }
     }
 
-  /**
-   * This method is to handle out of order events. ie. if Job event come after execution end event.
-   * @param jobId
-   * @param groupId
-   */
   private def updateJobDetails(jobId: String, groupId: String): Unit = {
     val execList = executionList.values().asScala.filter(_.groupId == groupId).toSeq
     if (execList.nonEmpty) {
@@ -101,7 +96,7 @@ private[thriftserver] class HiveThriftServer2Listener(
         updateLiveStore(exec)
       }
     } else {
-      // It may possible that event reordering happens such a way that JobStart event come after
+      // It may possible that event reordering happens, such a way that JobStart event come after
       // Execution end event (Refer SPARK-27019). To handle that situation, if occurs in
       // Thriftserver, following code will take care. Here will come only if JobStart event comes
       // after Execution End event.
@@ -119,7 +114,7 @@ private[thriftserver] class HiveThriftServer2Listener(
   override def onOtherEvent(event: SparkListenerEvent): Unit = {
     event match {
       case e: SparkListenerThriftServerSessionCreated => onSessionCreated(e)
-      case e: SparkListenerSessionClosed => onSessionClosed(e)
+      case e: SparkListenerThriftServerSessionClosed => onSessionClosed(e)
       case e: SparkListenerThriftServerOperationStart => onOperationStart(e)
       case e: SparkListenerThriftServerOperationParsed => onOperationParsed(e)
       case e: SparkListenerThriftServerOperationCanceled => onOperationCanceled(e)
@@ -136,7 +131,7 @@ private[thriftserver] class HiveThriftServer2Listener(
     updateLiveStore(session)
   }
 
-  private def onSessionClosed(e: SparkListenerSessionClosed): Unit = {
+  private def onSessionClosed(e: SparkListenerThriftServerSessionClosed): Unit = {
     val session = sessionList.get(e.sessionId)
     session.finishTimestamp = e.finishTime
     updateStoreWithTriggerEnabled(session)
@@ -299,7 +294,6 @@ private[thriftserver] class LiveExecutionData(
   }
 }
 
-
 private[thriftserver] class LiveSessionData(
     val sessionId: String,
     val startTimeStamp: Long,

sql/hive-thriftserver/src/test/scala/org/apache/spark/sql/hive/thriftserver/ui/HiveThriftServer2ListenerSuite.scala

@@ -65,7 +65,8 @@ class HiveThriftServer2ListenerSuite extends SparkFunSuite with BeforeAndAfter {
         assert(statusStore.getOnlineSessionNum === 1)
       }
 
-      listener.onOtherEvent(SparkListenerSessionClosed("sessionId", System.currentTimeMillis()))
+      listener.onOtherEvent(SparkListenerThriftServerSessionClosed("sessionId",
+        System.currentTimeMillis()))
 
       if (!live) {
         // To update history store
@@ -96,15 +97,15 @@ class HiveThriftServer2ListenerSuite extends SparkFunSuite with BeforeAndAfter {
         "user", time))
 
       time += 1
-      listener.onOtherEvent(SparkListenerSessionClosed("sessionId1", time))
+      listener.onOtherEvent(SparkListenerThriftServerSessionClosed("sessionId1", time))
 
       time += 1
-      listener.onOtherEvent(SparkListenerSessionClosed("sessionId2", time))
+      listener.onOtherEvent(SparkListenerThriftServerSessionClosed("sessionId2", time))
 
       listener.onOtherEvent(SparkListenerThriftServerSessionCreated("localhost", "sessionId3",
         "user", time))
       time += 1
-      listener.onOtherEvent(SparkListenerSessionClosed("sessionId3", 4))
+      listener.onOtherEvent(SparkListenerThriftServerSessionClosed("sessionId3", 4))
 
       if (!live) {
         kvstore.close(false)
@@ -134,7 +135,8 @@ class HiveThriftServer2ListenerSuite extends SparkFunSuite with BeforeAndAfter {
       System.currentTimeMillis(),
       Nil,
       createProperties))
-    listener.onOtherEvent(SparkListenerSessionClosed("sessionId", System.currentTimeMillis()))
+    listener.onOtherEvent(SparkListenerThriftServerSessionClosed("sessionId",
+      System.currentTimeMillis()))
     val exec = statusStore.getExecution("id")
     assert(exec.isDefined)
     assert(exec.get.jobId === Seq("0"))

sql/hive-thriftserver/src/test/scala/org/apache/spark/sql/hive/thriftserver/ui/ThriftServerPageSuite.scala

@@ -62,7 +62,7 @@ class ThriftServerPageSuite extends SparkFunSuite with BeforeAndAfter {
       System.currentTimeMillis()))
     listener.onOtherEvent(SparkListenerThriftServerOperationClosed("id",
       System.currentTimeMillis()))
-    listener.onOtherEvent(SparkListenerSessionClosed("sessionid", System.currentTimeMillis()))
+    listener.onOtherEvent(SparkListenerThriftServerSessionClosed("sessionid", System.currentTimeMillis()))
 
     statusStore
   }