From 1ca83aa8326a0fb935c42be18e781a851c952ec0 Mon Sep 17 00:00:00 2001
From: Alan Boudreault <alan@alanb.ca>
Date: Wed, 12 Jul 2017 06:44:05 -0400
Subject: [PATCH] Make sure the session is shutdown on destruction

---
 CHANGELOG.rst        | 1 +
 cassandra/cluster.py | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index e28afe80..cccdf873 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -14,6 +14,7 @@ Bug Fixes
 * Avoid to replace a connection that is supposed to shutdown (PYTHON-772)
 * request_ids may not be returned to the pool (PYTHON-739)
 * Fix murmur3 on big-endian systems (PYTHON-653)
+* Ensure unused connections are closed if a Session is deleted by the GC (PYTHON-774)
 
 Other
 -----
diff --git a/cassandra/cluster.py b/cassandra/cluster.py
index cfe12f9c..b5a7336e 100644
--- a/cassandra/cluster.py
+++ b/cassandra/cluster.py
@@ -2325,6 +2325,10 @@ class Session(object):
     def __exit__(self, *args):
         self.shutdown()
 
+    def __del__(self):
+        # Ensure all connections are closed, in case the Session object is deleted by the GC
+        self.shutdown()
+
     def add_or_renew_pool(self, host, is_host_addition):
         """
         For internal use only.