From 4b0815f4975bcdd63562784b1dd1042692c3967c Mon Sep 17 00:00:00 2001
From: James Slagle <jslagle@redhat.com>
Date: Wed, 26 Aug 2015 16:50:09 -0400
Subject: [PATCH] Raise the mysql max connection limit

We need to raise this higher on the undercloud, as we were hitting the
previous limit on an undercloud with 24 cores. As part of this change,
also disable the open file limit to bring the configuration in line with
the Overcloud.

Change-Id: Ia77b6ca11d16f24dfd74332cbe01e18286ccb6ea
---
 elements/puppet-stack-config/puppet-stack-config.pp   | 11 ++++++-----
 .../puppet-stack-config.yaml.template                 |  1 +
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/elements/puppet-stack-config/puppet-stack-config.pp b/elements/puppet-stack-config/puppet-stack-config.pp
index b05895724..7bb9f6601 100644
--- a/elements/puppet-stack-config/puppet-stack-config.pp
+++ b/elements/puppet-stack-config/puppet-stack-config.pp
@@ -19,11 +19,12 @@ if count(hiera('ntp::servers')) > 0 {
 
 # TODO Galara
 class { 'mysql::server':
-  override_options => {
-    'mysqld' => {
-      'bind-address' => hiera('controller_host'),
-      'max_connections' => 500,
-    }
+    override_options => {
+      'mysqld' => {
+        'bind-address' => hiera('controller_host'),
+        'max_connections' => hiera('mysql_max_connections'),
+        'open_files_limit' => '-1',
+      }
   }
 }
 
diff --git a/elements/puppet-stack-config/puppet-stack-config.yaml.template b/elements/puppet-stack-config/puppet-stack-config.yaml.template
index df8ac645c..ce097853f 100644
--- a/elements/puppet-stack-config/puppet-stack-config.yaml.template
+++ b/elements/puppet-stack-config/puppet-stack-config.yaml.template
@@ -117,6 +117,7 @@ mysql_innodb_buffer_pool_size: 0
 mysql_root_password: ''
 mysql_cluster_name: unset
 mysql::server::manage_config_file: true
+mysql_max_connections: 4096
 
 # Neutron
 neutron::bind_host: {{LOCAL_IP}}