From 87a379f6631e3986efc0513d38cfdd3bb8a9c0d0 Mon Sep 17 00:00:00 2001
From: Oleksii Kliukin <oleksii.kliukin@zalando.de>
Date: Thu, 10 Aug 2017 18:19:35 +0200
Subject: [PATCH] Avoid reusing closed DB connection. (#79)

Set DB connection to nil upon closing it.
---
 pkg/cluster/pg.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/pkg/cluster/pg.go b/pkg/cluster/pg.go
index e5712952e..0fd94f7d1 100644
--- a/pkg/cluster/pg.go
+++ b/pkg/cluster/pg.go
@@ -64,7 +64,10 @@ func (c *Cluster) initDbConn() (err error) {
 func (c *Cluster) closeDbConn() (err error) {
 	if c.pgDb != nil {
 		c.logger.Debug("closing database connection")
-		return c.pgDb.Close()
+		if err = c.pgDb.Close(); err != nil {
+			c.logger.Errorf("could not close database connection: %v", err)
+		}
+		c.pgDb = nil
 	}
 	c.logger.Warning("attempted to close an empty db connection object")
 	return nil