From 3857912c61590c8ace6ac6128b8604e8bf190403 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Markus=20M=C3=A4kel=C3=A4?= <markus.makela@mariadb.com>
Date: Thu, 29 Mar 2018 03:41:00 +0300
Subject: [PATCH] MXS-1503: Abort connection when inside transaction

Before the transaction migration is implemented, the connection must be
closed if a transaction is open and the connection to the master is
lost. Doing this retains the same transactionality as a direct connection
to the server would.
---
 server/modules/routing/readwritesplit/readwritesplit.cc | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/server/modules/routing/readwritesplit/readwritesplit.cc b/server/modules/routing/readwritesplit/readwritesplit.cc
index c3553dc86..72c7bdf70 100644
--- a/server/modules/routing/readwritesplit/readwritesplit.cc
+++ b/server/modules/routing/readwritesplit/readwritesplit.cc
@@ -1393,6 +1393,12 @@ static void handleError(MXS_ROUTER *instance,
                     }
                 }
 
+                if (session_trx_is_active(session))
+                {
+                    // We have an open transaction, we can't continue
+                    can_continue = false;
+                }
+
                 *succp = can_continue;
                 backend->close();
             }