diff --git a/tests/pillar/slave_cluster.sls b/tests/pillar/slave_cluster.sls
index 458f09a..72c6dfc 100644
--- a/tests/pillar/slave_cluster.sls
+++ b/tests/pillar/slave_cluster.sls
@@ -162,6 +162,9 @@
       key_file: /etc/mysql/ssl/key.pem
       cert_file: /etc/mysql/ssl/cert.pem
       ca_file: /etc/mysql/ssl/ca.pem
+    table_open_cache: 15000
+    tmp_table_size: 16777216
+    max_heap_table_size: 16777216
   clustercheck:
     enabled: True
     user: clustercheck