Minor code cleanup, restore the logging level hack in TestHive.scala

Author: liancheng

sql/hive-thriftserver/src/test/scala/org/apache/spark/sql/hive/thriftserver/HiveThriftServer2Suite.scala

@@ -41,13 +41,10 @@ import org.apache.spark.sql.catalyst.util.getTempFilePath
 class HiveThriftServer2Suite extends FunSuite with Logging {
   Class.forName(classOf[HiveDriver].getCanonicalName)
 
-  val verbose = Option(System.getenv("SPARK_SQL_TEST_VERBOSE")).isDefined
-  
   def startThriftServerWithin(timeout: FiniteDuration = 1.minute)(f: Statement => Unit) {
-    Thread.sleep(5000)
-
     val startScript = "../../sbin/start-thriftserver.sh".split("/").mkString(File.separator)
     val stopScript = "../../sbin/stop-thriftserver.sh".split("/").mkString(File.separator)
+
     val warehousePath = getTempFilePath("warehouse")
     val metastorePath = getTempFilePath("metastore")
     val metastoreJdbcUri = s"jdbc:derby:;databaseName=$metastorePath;create=true"
@@ -94,8 +91,9 @@ class HiveThriftServer2Suite extends FunSuite with Logging {
           .run(ProcessLogger(captureLogOutput, _ => ()))
       }
     }
-    // reset SPARK_TESTING to avoid loading Log4J configurations in testing class paths
-    Process(command, None, ("SPARK_TESTING", "0")).run(ProcessLogger(
+
+    // Resets SPARK_TESTING to avoid loading Log4J configurations in testing class paths
+    Process(command, None, "SPARK_TESTING" -> "0").run(ProcessLogger(
       captureThriftServerOutput("stdout"),
       captureThriftServerOutput("stderr")))
 

sql/hive/src/main/scala/org/apache/spark/sql/hive/TestHive.scala

@@ -378,6 +378,11 @@ class TestHiveContext(sc: SparkContext) extends HiveContext(sc) {
    */
   def reset() {
     try {
+      // HACK: Hive is too noisy by default.
+      org.apache.log4j.LogManager.getCurrentLoggers.foreach { log =>
+        log.asInstanceOf[org.apache.log4j.Logger].setLevel(org.apache.log4j.Level.WARN)
+      }
+
       clearCache()
       loadedTables.clear()
       catalog.client.getAllTables("default").foreach { t =>