openstack
/
puppet-tripleo
Code Issues Proposed changes

Allow tuning of Galera gcache size 

Appropriate gcache.size values allow a cluster node to perform IST
instead of SST if the writes occurred during its downtime do not exceed
the size of the cache itself.
This is especially beneficial during maintenance windows.

Closes-Bug: #1939540

Change-Id: I483484c58ab703f3a4dcede636d733e23b051f63
(cherry picked from commit feed67dcc4)
(cherry picked from commit 1ce9d8855d)
(cherry picked from commit 165dcb2de0)
(cherry picked from commit 14d6f9ae31)
This commit is contained in:
Luca Miccini 2021-08-10 08:25:00 +02:00 committed by Michele Baldessari
parent 7f06784383
commit a5e85d8445
1 changed files with 14 additions and 2 deletions
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16
manifests/profile/pacemaker/database/mysql_bundle.pp
View File

@ -158,6 +158,11 @@
# [*force_ocf*]
# (optional) Use --force when creating the ocf resource via pcs
# Defaults to false
#
# [*gcache_size*]
# (optional) Controls the gcache size.
# Defaults to undef
#
class tripleo::profile::pacemaker::database::mysql_bundle (
$mysql_docker_image = hiera('tripleo::profile::pacemaker::database::mysql_bundle::mysql_docker_image', undef),
$control_port = hiera('tripleo::profile::pacemaker::database::mysql_bundle::control_port', '3123'),
@ -188,6 +193,7 @@ class tripleo::profile::pacemaker::database::mysql_bundle (
$open_files_limit = 16384,
$promote_timeout = 300,
$force_ocf = false,
$gcache_size = undef,
) {
if $bootstrap_node and $::hostname == downcase($bootstrap_node) {
$pacemaker_master = true
@ -239,6 +245,12 @@ class tripleo::profile::pacemaker::database::mysql_bundle (
}
$cluster_host_map_string = join($host_map_array, ';')
if $gcache_size {
$gcache_options = "gcache.size=${gcache_size};"
} else {
$gcache_options = ''
}
if $enable_internal_tls {
$tls_certfile = $certificate_specs['service_certificate']
$tls_keyfile = $certificate_specs['service_key']
@ -277,9 +289,9 @@ class tripleo::profile::pacemaker::database::mysql_bundle (
$mysqld_options_sst = {}
}
if $ipv6 {
$wsrep_provider_options = "gmcast.listen_addr=tcp://[::]:4567;${tls_options}"
$wsrep_provider_options = "${gcache_options}gmcast.listen_addr=tcp://[::]:4567;${tls_options}"
} else {
$wsrep_provider_options = "gmcast.listen_addr=tcp://${gmcast_listen_addr}:4567;${tls_options}"
$wsrep_provider_options = "${gcache_options}gmcast.listen_addr=tcp://${gmcast_listen_addr}:4567;${tls_options}"
}
$mysqld_options_mysqld = {