From 86ad610b6c72e720399a99bffb7739a402b8bed2 Mon Sep 17 00:00:00 2001
From: root <jmrenouard@gmail.com>
Date: Mon, 18 Apr 2016 10:59:50 +0200
Subject: [PATCH] #189 fix memory calculation when Galera is disabled

---
 mysqltuner.pl | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/mysqltuner.pl b/mysqltuner.pl
index 357c322..c174c00 100755
--- a/mysqltuner.pl
+++ b/mysqltuner.pl
@@ -3093,7 +3093,10 @@ sub get_wsrep_options {
     return @galera_options;
 }
 sub get_gcache_memory {
-    return get_wsrep_option 'gcache.mem_size';
+    my $gCacheMem=get_wsrep_option('gcache.mem_size');
+
+    return 0 unless defined $gCacheMem and $gCacheMem ne '';
+    return $gCacheMem;
 }
 sub get_wsrep_option {
     my $key=shift;