add spark version infomation in log for standalone mode

Author: liyezhang556520

core/src/main/scala/org/apache/spark/deploy/master/Master.scala

@@ -123,6 +123,7 @@ private[spark] class Master(
 
   override def preStart() {
     logInfo("Starting Spark master at " + masterUrl)
+    logInfo(s"Master Spark Version is ${org.apache.spark.SPARK_VERSION}")
     // Listen for remote client disconnection events, since they don't go through Akka's watch()
     context.system.eventStream.subscribe(self, classOf[RemotingLifecycleEvent])
     webUi.bind()

core/src/main/scala/org/apache/spark/deploy/worker/Worker.scala

@@ -155,6 +155,7 @@ private[spark] class Worker(
     assert(!registered)
     logInfo("Starting Spark worker %s:%d with %d cores, %s RAM".format(
       host, port, cores, Utils.megabytesToString(memory)))
+    logInfo(s"Worker Spark Version is ${org.apache.spark.SPARK_VERSION}")
     logInfo("Spark home: " + sparkHome)
     createWorkDir()
     context.system.eventStream.subscribe(self, classOf[RemotingLifecycleEvent])