diff --git a/controller.yaml b/controller.yaml
index 1bd1f5909d..ddee7baa4c 100644
--- a/controller.yaml
+++ b/controller.yaml
@@ -256,7 +256,7 @@ parameters:
   MysqlMaxConnections:
     description: Configures MySQL max_connections config setting
     type: number
-    default: 1024
+    default: 4096
   MysqlRootPassword:
     type: string
     hidden: true
diff --git a/overcloud-without-mergepy.yaml b/overcloud-without-mergepy.yaml
index e1f2405bff..e0d6442bd3 100644
--- a/overcloud-without-mergepy.yaml
+++ b/overcloud-without-mergepy.yaml
@@ -413,7 +413,7 @@ parameters:
   MysqlMaxConnections:
     description: Configures MySQL max_connections config setting
     type: number
-    default: 1024
+    default: 4096
   NeutronDnsmasqOptions:
     default: 'dhcp-option-force=26,1400'
     description: Dnsmasq options for neutron-dhcp-agent. The default value here forces MTU to be set to 1400 to account for the tunnel overhead.
diff --git a/puppet/controller-puppet.yaml b/puppet/controller-puppet.yaml
index 3f01b094ce..3760a1c0ca 100644
--- a/puppet/controller-puppet.yaml
+++ b/puppet/controller-puppet.yaml
@@ -261,7 +261,7 @@ parameters:
   MysqlMaxConnections:
     description: Configures MySQL max_connections config setting
     type: number
-    default: 1024
+    default: 4096
   MysqlRootPassword:
     type: string
     hidden: true