Enable xtrabackup methods for Galera SST

- Enable xtrabackup as SST method for Galera
- Turn off perfomance_schema on
- Remove old openssl packet
- Slightly decrease RAM for innodb_buffer_pool_size
- Set 1M buffer for send/recieve socket for socat to
  speed up SST between nodes

Change-Id: I9b0b5eee6deab366324f1f808e32f64e290b444e
Implements: bp/galera-improvements
Closes-Bug: 1354479

deployment/puppet/galera/manifests/init.pp

@@ -44,6 +44,10 @@
 # [*node_addresses*]
 #  Array with IPs/hostnames of cluster members.
 #
+# [*wsrep_sst_method*]
+#  (optional) The method for state snapshot transfer between nodes
+#  Defaults to xtrabackup-v2
+#  xtrabackup, xtrabackup-v2, mysqldump are supported
 
 class galera (
   $cluster_name         = 'openstack',
@@ -55,6 +59,7 @@ class galera (
   $use_syslog           = false,
   $gcomm_port           = '4567',
   $status_check         = true,
+  $wsrep_sst_method     = 'xtrabackup-v2'
   ) {
   include galera::params
 
@@ -98,8 +103,7 @@ class galera (
     before => Package['MySQL-server']
   }
 
-  package { [$::galera::params::libssl_package,
-              $::galera::params::libaio_package]:
+  package { $::galera::params::libaio_package:
     ensure => present,
     before => Package['galera', 'MySQL-server']
   }
@@ -115,6 +119,27 @@ class galera (
     $wsrep_version = 'installed'
   }
 
+  if $wsrep_sst_method in [ 'xtrabackup', 'xtrabackup-v2' ] {
+    firewall {'101 xtrabackup':
+      port   => 4444,
+      proto  => 'tcp',
+      action => 'accept',
+      before => Package['MySQL-server'],
+    }
+    package { 'percona-xtrabackup':
+      ensure => present,
+      before => Package['MySQL-server'],
+    }
+    $wsrep_sst_auth = true
+  }
+  elsif $wsrep_sst_method == 'mysqldump' {
+    $wsrep_sst_auth = true
+  }
+  else {
+    $wsrep_sst_auth = undef
+    warning("Unrecognized wsrep_sst method: ${wsrep_sst_auth}")
+  }
+
   package { 'MySQL-server':
     ensure   => $wsrep_version,
     name     => $::galera::params::mysql_server_name,
@@ -128,6 +153,7 @@ class galera (
     before  => File['mysql-wss-ocf']
   }
 
+
   if $primary_controller {
     $galera_pid = $::osfamily ? {
       'RedHat' => '/var/run/mysql/mysqld.pid',
@@ -187,8 +213,7 @@ class galera (
 
   File<| title == 'ocf-mirantis-path' |> -> File['mysql-wss-ocf']
 
-  Package['MySQL-server'] -> File['mysql-wss-ocf']
-  Package['galera'] -> File['mysql-wss-ocf']
+  Package['MySQL-server', 'galera'] -> File['mysql-wss-ocf']
 
   tweaks::ubuntu_service_override { "${service_name}":
     package_name => 'MySQL-server',
@@ -225,8 +250,7 @@ class galera (
       # evaluate existing log file size and use it as a value
       $innodb_log_file_size_real = $::mysql_log_file_size_real
     }
-
- }
+  }
   file { '/etc/mysql/conf.d/wsrep.cnf':
     ensure  => present,
     content => template('galera/wsrep.cnf.erb'),

deployment/puppet/galera/manifests/params.pp

@@ -23,10 +23,10 @@ class galera::params {
   #TODO(bogdando) remove code duplication for galera and mysql manifests to openstack::db in 'I' release
   #limit buffer size to 10G
   $buffer_size             =
-    inline_template("<%= [(${::memorysize_mb} * 0.3 + 0).floor, 10000].min %>")
+    inline_template("<%= [(${::memorysize_mb} * 0.2 + 0).floor, 10000].min %>")
   $mysql_buffer_pool_size  =  "${buffer_size}M"
   $mysql_log_file_size     =
-    inline_template("<%= [(${buffer_size} * 0.25 + 0).floor, 2047].min %>M")
+    inline_template("<%= [(${buffer_size} * 0.2 + 0).floor, 2047].min %>M")
   $wait_timeout            = '1800'
   $myisam_sort_buffer_size = '64M'
   $key_buffer_size         = '64M'
@@ -36,14 +36,12 @@ class galera::params {
 
   case $::osfamily {
     'RedHat': {
-      $libssl_package       = 'openssl098e'
       $libaio_package       = 'libaio'
       $mysql_server_name    = 'MySQL-server-wsrep'
       $mysql_client_name    = 'MySQL-client-wsrep'
       $libgalera_prefix     = '/usr/lib64'
     }
     'Debian': {
-      $libssl_package       = 'libssl0.9.8'
       $libaio_package       = 'libaio1'
       $mysql_server_name    = 'mysql-server-wsrep-5.6'
       $mysql_client_name    = 'mysql-client-5.6'

deployment/puppet/galera/templates/wsrep.cnf.erb

@@ -1,4 +1,5 @@
 [mysqld]
+datadir=<%= @datadir %>
 bind-address=<%= @node_address %>
 port=3307
 max_connections=<%= @max_connections %>
@@ -14,6 +15,9 @@ skip-external-locking
 <% if @skip_name_resolve -%>
 skip-name-resolve
 <% end -%>
+<% if scope.lookupvar('memorysize_mb').to_i < 4000 -%>
+performance_schema=off
+<% end -%>
 
 myisam_sort_buffer_size=<%= @myisam_sort_buffer_size %>
 wait_timeout=<%= @wait_timeout %>
@@ -48,6 +52,18 @@ wsrep_provider=<%= @libgalera_prefix %>/galera/libgalera_smm.so
 wsrep_cluster_name="<%= @cluster_name -%>"
 
 wsrep_slave_threads=<%= [[@processorcount.to_i*2, 4].max, 12].min %>
-wsrep_sst_method=mysqldump
+wsrep_sst_method=<%= @wsrep_sst_method %>
+<% if @wsrep_sst_auth -%>
 wsrep_sst_auth=<%= @mysql_user %>:<%= @mysql_password %>
+<% end -%>
 wsrep_node_address=<%= @node_address %>
+
+<% if @wsrep_sst_method =~ /xtrabackup/ -%>
+[xtrabackup]
+parallel=<%= [[@processorcount.to_i, 2].max, 6].min %>
+
+[sst]
+streamfmt=xbstream
+transferfmt=socat
+sockopt=,nodelay,sndbuf=1048576,rcvbuf=1048576
+<% end -%>