Added comment for Port Range Configuration and increase port range fo…

…r unit test case

conf/livy-client.conf.template

@@ -55,6 +55,7 @@
 
 # Address for the RSC driver to connect back with it's connection info.
 # livy.rsc.launcher.address =
+# Port Range on which RPC will launch . Port range in inclusive of start and end port .
 # livy.rsc.launcher.port.range = 10000~10110
 
 # How long will the RSC wait for a connection for a Livy server before shutting itself down.

rsc/src/test/java/com/cloudera/livy/rsc/rpc/TestRpc.java

@@ -204,7 +204,7 @@ public void testPortRange() throws Exception {
     } catch (Exception ee) {
       assertTrue(ee instanceof ArrayIndexOutOfBoundsException);
     }
-    portRange = "11000~11001";
+    portRange = "11000~11110";
     emptyConfig.set(LAUNCHER_PORT_RANGE, portRange);
     String [] portRangeData = portRange.split("~");
     int startPort = Integer.parseInt(portRangeData[0]);