Merge remote-tracking branch 'upstream/master' into dt-python-consist…

…ency

Conflicts:
	python/pyspark/mllib/tree.py
(not a real conflict, merged)

bin/beeline

@@ -17,29 +17,14 @@
 # limitations under the License.
 #
 
-# Figure out where Spark is installed
-FWDIR="$(cd `dirname $0`/..; pwd)"
+#
+# Shell script for starting BeeLine
 
-# Find the java binary
-if [ -n "${JAVA_HOME}" ]; then
-  RUNNER="${JAVA_HOME}/bin/java"
-else
-  if [ `command -v java` ]; then
-    RUNNER="java"
-  else
-    echo "JAVA_HOME is not set" >&2
-    exit 1
-  fi
-fi
+# Enter posix mode for bash
+set -o posix
 
-# Compute classpath using external script
-classpath_output=$($FWDIR/bin/compute-classpath.sh)
-if [[ "$?" != "0" ]]; then
-  echo "$classpath_output"
-  exit 1
-else
-  CLASSPATH=$classpath_output
-fi
+# Figure out where Spark is installed
+FWDIR="$(cd `dirname $0`/..; pwd)"
 
 CLASS="org.apache.hive.beeline.BeeLine"
-exec "$RUNNER" -cp "$CLASSPATH" $CLASS "$@"
+exec "$FWDIR/bin/spark-class" $CLASS "$@"

bin/spark-sql

@@ -23,14 +23,72 @@
 # Enter posix mode for bash
 set -o posix
 
+CLASS="org.apache.spark.sql.hive.thriftserver.SparkSQLCLIDriver"
+
 # Figure out where Spark is installed
 FWDIR="$(cd `dirname $0`/..; pwd)"
 
-if [[ "$@" = *--help ]] || [[ "$@" = *-h ]]; then
-  echo "Usage: ./sbin/spark-sql [options]"
+function usage {
+  echo "Usage: ./sbin/spark-sql [options] [cli option]"
+  pattern="usage"
+  pattern+="\|Spark assembly has been built with Hive"
+  pattern+="\|NOTE: SPARK_PREPEND_CLASSES is set"
+  pattern+="\|Spark Command: "
+  pattern+="\|--help"
+  pattern+="\|======="
+
   $FWDIR/bin/spark-submit --help 2>&1 | grep -v Usage 1>&2
+  echo
+  echo "CLI options:"
+  $FWDIR/bin/spark-class $CLASS --help 2>&1 | grep -v "$pattern" 1>&2
+}
+
+function ensure_arg_number {
+  arg_number=$1
+  at_least=$2
+
+  if [[ $arg_number -lt $at_least ]]; then
+    usage
+    exit 1
+  fi
+}
+
+if [[ "$@" = --help ]] || [[ "$@" = -h ]]; then
+  usage
   exit 0
 fi
 
-CLASS="org.apache.spark.sql.hive.thriftserver.SparkSQLCLIDriver"
-exec "$FWDIR"/bin/spark-submit --class $CLASS spark-internal $@
+CLI_ARGS=()
+SUBMISSION_ARGS=()
+
+while (($#)); do
+  case $1 in
+    -d | --define | --database | -f | -h | --hiveconf | --hivevar | -i | -p)
+      ensure_arg_number $# 2
+      CLI_ARGS+=($1); shift
+      CLI_ARGS+=($1); shift
+      ;;
+
+    -e)
+      ensure_arg_number $# 2
+      CLI_ARGS+=($1); shift
+      CLI_ARGS+=(\"$1\"); shift
+      ;;
+
+    -s | --silent)
+      CLI_ARGS+=($1); shift
+      ;;
+
+    -v | --verbose)
+      # Both SparkSubmit and SparkSQLCLIDriver recognizes -v | --verbose
+      CLI_ARGS+=($1)
+      SUBMISSION_ARGS+=($1); shift
+      ;;
+
+    *)
+      SUBMISSION_ARGS+=($1); shift
+      ;;
+  esac
+done
+
+eval exec "$FWDIR"/bin/spark-submit --class $CLASS ${SUBMISSION_ARGS[*]} spark-internal ${CLI_ARGS[*]}

core/src/main/scala/org/apache/spark/HttpFileServer.scala

@@ -23,7 +23,10 @@ import com.google.common.io.Files
 
 import org.apache.spark.util.Utils
 
-private[spark] class HttpFileServer(securityManager: SecurityManager) extends Logging {
+private[spark] class HttpFileServer(
+    securityManager: SecurityManager,
+    requestedPort: Int = 0)
+  extends Logging {
 
   var baseDir : File = null
   var fileDir : File = null
@@ -38,7 +41,7 @@ private[spark] class HttpFileServer(securityManager: SecurityManager) extends Lo
     fileDir.mkdir()
     jarDir.mkdir()
     logInfo("HTTP File server directory is " + baseDir)
-    httpServer = new HttpServer(baseDir, securityManager)
+    httpServer = new HttpServer(baseDir, securityManager, requestedPort, "HTTP file server")
     httpServer.start()
     serverUri = httpServer.uri
     logDebug("HTTP file server started at: " + serverUri)

core/src/main/scala/org/apache/spark/HttpServer.scala

@@ -21,7 +21,7 @@ import java.io.File
 
 import org.eclipse.jetty.util.security.{Constraint, Password}
 import org.eclipse.jetty.security.authentication.DigestAuthenticator
-import org.eclipse.jetty.security.{ConstraintMapping, ConstraintSecurityHandler, HashLoginService, SecurityHandler}
+import org.eclipse.jetty.security.{ConstraintMapping, ConstraintSecurityHandler, HashLoginService}
 
 import org.eclipse.jetty.server.Server
 import org.eclipse.jetty.server.bio.SocketConnector
@@ -41,48 +41,68 @@ private[spark] class ServerStateException(message: String) extends Exception(mes
  * as well as classes created by the interpreter when the user types in code. This is just a wrapper
  * around a Jetty server.
  */
-private[spark] class HttpServer(resourceBase: File, securityManager: SecurityManager)
-    extends Logging {
+private[spark] class HttpServer(
+    resourceBase: File,
+    securityManager: SecurityManager,
+    requestedPort: Int = 0,
+    serverName: String = "HTTP server")
+  extends Logging {
+
   private var server: Server = null
-  private var port: Int = -1
+  private var port: Int = requestedPort
 
   def start() {
     if (server != null) {
       throw new ServerStateException("Server is already started")
     } else {
       logInfo("Starting HTTP Server")
-      server = new Server()
-      val connector = new SocketConnector
-      connector.setMaxIdleTime(60*1000)
-      connector.setSoLingerTime(-1)
-      connector.setPort(0)
-      server.addConnector(connector)
-
-      val threadPool = new QueuedThreadPool
-      threadPool.setDaemon(true)
-      server.setThreadPool(threadPool)
-      val resHandler = new ResourceHandler
-      resHandler.setResourceBase(resourceBase.getAbsolutePath)
-
-      val handlerList = new HandlerList
-      handlerList.setHandlers(Array(resHandler, new DefaultHandler))
-
-      if (securityManager.isAuthenticationEnabled()) {
-        logDebug("HttpServer is using security")
-        val sh = setupSecurityHandler(securityManager)
-        // make sure we go through security handler to get resources
-        sh.setHandler(handlerList)
-        server.setHandler(sh)
-      } else {
-        logDebug("HttpServer is not using security")
-        server.setHandler(handlerList)
-      }
-
-      server.start()
-      port = server.getConnectors()(0).getLocalPort()
+      val (actualServer, actualPort) =
+        Utils.startServiceOnPort[Server](requestedPort, doStart, serverName)
+      server = actualServer
+      port = actualPort
     }
   }
 
+  /**
+   * Actually start the HTTP server on the given port.
+   *
+   * Note that this is only best effort in the sense that we may end up binding to a nearby port
+   * in the event of port collision. Return the bound server and the actual port used.
+   */
+  private def doStart(startPort: Int): (Server, Int) = {
+    val server = new Server()
+    val connector = new SocketConnector
+    connector.setMaxIdleTime(60 * 1000)
+    connector.setSoLingerTime(-1)
+    connector.setPort(startPort)
+    server.addConnector(connector)
+
+    val threadPool = new QueuedThreadPool
+    threadPool.setDaemon(true)
+    server.setThreadPool(threadPool)
+    val resHandler = new ResourceHandler
+    resHandler.setResourceBase(resourceBase.getAbsolutePath)
+
+    val handlerList = new HandlerList
+    handlerList.setHandlers(Array(resHandler, new DefaultHandler))
+
+    if (securityManager.isAuthenticationEnabled()) {
+      logDebug("HttpServer is using security")
+      val sh = setupSecurityHandler(securityManager)
+      // make sure we go through security handler to get resources
+      sh.setHandler(handlerList)
+      server.setHandler(sh)
+    } else {
+      logDebug("HttpServer is not using security")
+      server.setHandler(handlerList)
+    }
+
+    server.start()
+    val actualPort = server.getConnectors()(0).getLocalPort
+
+    (server, actualPort)
+  }
+
   /**
    * Setup Jetty to the HashLoginService using a single user with our
    * shared secret. Configure it to use DIGEST-MD5 authentication so that the password
@@ -134,7 +154,7 @@ private[spark] class HttpServer(resourceBase: File, securityManager: SecurityMan
     if (server == null) {
       throw new ServerStateException("Server is not started")
     } else {
-      return "http://" + Utils.localIpAddress + ":" + port
+      "http://" + Utils.localIpAddress + ":" + port
     }
   }
 }

core/src/main/scala/org/apache/spark/SparkConf.scala

@@ -323,6 +323,14 @@ private[spark] object SparkConf {
    * the scheduler, while the rest of the spark configs can be inherited from the driver later.
    */
   def isExecutorStartupConf(name: String): Boolean = {
-    isAkkaConf(name) || name.startsWith("spark.akka") || name.startsWith("spark.auth")
+    isAkkaConf(name) ||
+    name.startsWith("spark.akka") ||
+    name.startsWith("spark.auth") ||
+    isSparkPortConf(name)
   }
+
+  /**
+   * Return whether the given config is a Spark port config.
+   */
+  def isSparkPortConf(name: String): Boolean = name.startsWith("spark.") && name.endsWith(".port")
 }

core/src/main/scala/org/apache/spark/SparkEnv.scala

@@ -22,7 +22,6 @@ import java.net.Socket
 
 import scala.collection.JavaConversions._
 import scala.collection.mutable
-import scala.concurrent.Await
 import scala.util.Properties
 
 import akka.actor._
@@ -151,10 +150,10 @@ object SparkEnv extends Logging {
     val (actorSystem, boundPort) = AkkaUtils.createActorSystem("spark", hostname, port, conf = conf,
       securityManager = securityManager)
 
-    // Bit of a hack: If this is the driver and our port was 0 (meaning bind to any free port),
-    // figure out which port number Akka actually bound to and set spark.driver.port to it.
-    if (isDriver && port == 0) {
-      conf.set("spark.driver.port",  boundPort.toString)
+    // Figure out which port Akka actually bound to in case the original port is 0 or occupied.
+    // This is so that we tell the executors the correct port to connect to.
+    if (isDriver) {
+      conf.set("spark.driver.port", boundPort.toString)
     }
 
     // Create an instance of the class named by the given Java system property, or by
@@ -222,7 +221,8 @@ object SparkEnv extends Logging {
 
     val httpFileServer =
       if (isDriver) {
-        val server = new HttpFileServer(securityManager)
+        val fileServerPort = conf.getInt("spark.fileserver.port", 0)
+        val server = new HttpFileServer(securityManager, fileServerPort)
         server.initialize()
         conf.set("spark.fileserver.uri",  server.serverUri)
         server

core/src/main/scala/org/apache/spark/broadcast/HttpBroadcast.scala

@@ -152,7 +152,8 @@ private[broadcast] object HttpBroadcast extends Logging {
 
   private def createServer(conf: SparkConf) {
     broadcastDir = Utils.createTempDir(Utils.getLocalDir(conf))
-    server = new HttpServer(broadcastDir, securityManager)
+    val broadcastPort = conf.getInt("spark.broadcast.port", 0)
+    server = new HttpServer(broadcastDir, securityManager, broadcastPort, "HTTP broadcast server")
     server.start()
     serverUri = server.uri
     logInfo("Broadcast server started at " + serverUri)

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

@@ -155,8 +155,6 @@ object Client {
     conf.set("akka.loglevel", driverArgs.logLevel.toString.replace("WARN", "WARNING"))
     Logger.getRootLogger.setLevel(driverArgs.logLevel)
 
-    // TODO: See if we can initialize akka so return messages are sent back using the same TCP
-    //       flow. Else, this (sadly) requires the DriverClient be routable from the Master.
     val (actorSystem, _) = AkkaUtils.createActorSystem(
       "driverClient", Utils.localHostName(), 0, conf, new SecurityManager(conf))
 

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

@@ -220,6 +220,7 @@ private[spark] class SparkSubmitArguments(args: Seq[String]) {
   /** Fill in values by parsing user options. */
   private def parseOpts(opts: Seq[String]): Unit = {
     var inSparkOpts = true
+    val EQ_SEPARATED_OPT="""(--[^=]+)=(.+)""".r
 
     // Delineates parsing of Spark options from parsing of user options.
     parse(opts)
@@ -322,33 +323,21 @@ private[spark] class SparkSubmitArguments(args: Seq[String]) {
         verbose = true
         parse(tail)
 
+      case EQ_SEPARATED_OPT(opt, value) :: tail =>
+        parse(opt :: value :: tail)
+
+      case value :: tail if value.startsWith("-") =>
+        SparkSubmit.printErrorAndExit(s"Unrecognized option '$value'.")
+
       case value :: tail =>
-        if (inSparkOpts) {
-          value match {
-            // convert --foo=bar to --foo bar
-            case v if v.startsWith("--") && v.contains("=") && v.split("=").size == 2 =>
-              val parts = v.split("=")
-              parse(Seq(parts(0), parts(1)) ++ tail)
-            case v if v.startsWith("-") =>
-              val errMessage = s"Unrecognized option '$value'."
-              SparkSubmit.printErrorAndExit(errMessage)
-            case v =>
-              primaryResource =
-                if (!SparkSubmit.isShell(v) && !SparkSubmit.isInternal(v)) {
-                  Utils.resolveURI(v).toString
-                } else {
-                  v
-                }
-              inSparkOpts = false
-              isPython = SparkSubmit.isPython(v)
-              parse(tail)
+        primaryResource =
+          if (!SparkSubmit.isShell(value) && !SparkSubmit.isInternal(value)) {
+            Utils.resolveURI(value).toString
+          } else {
+            value
           }
-        } else {
-          if (!value.isEmpty) {
-            childArgs += value
-          }
-          parse(tail)
-        }
+        isPython = SparkSubmit.isPython(value)
+        childArgs ++= tail
 
       case Nil =>
     }

core/src/main/scala/org/apache/spark/deploy/master/ui/MasterWebUI.scala

@@ -28,7 +28,7 @@ import org.apache.spark.util.AkkaUtils
  */
 private[spark]
 class MasterWebUI(val master: Master, requestedPort: Int)
-  extends WebUI(master.securityMgr, requestedPort, master.conf) with Logging {
+  extends WebUI(master.securityMgr, requestedPort, master.conf, name = "MasterUI") with Logging {
 
   val masterActorRef = master.self
   val timeout = AkkaUtils.askTimeout(master.conf)