From 4289a440167af3e7ea2befc74e5891179f186ca5 Mon Sep 17 00:00:00 2001
From: gcc <spark-src@condor.rhaag.ip>
Date: Wed, 2 Dec 2015 09:45:06 +0100
Subject: [PATCH] [SPARK-12048][SQL] Prevent to close JDBC resources twice

---
 .../apache/spark/sql/execution/datasources/jdbc/JDBCRDD.scala    | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/jdbc/JDBCRDD.scala b/sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/jdbc/JDBCRDD.scala
index 57a8a044a37c..564a1cad2800 100644
--- a/sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/jdbc/JDBCRDD.scala
+++ b/sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/jdbc/JDBCRDD.scala
@@ -509,6 +509,7 @@ private[sql] class JDBCRDD(
       } catch {
         case e: Exception => logWarning("Exception closing connection", e)
       }
+      closed = true
     }
 
     override def hasNext: Boolean = {