As per documentation: https://mariadb.com/kb/en/mariadb/documentation/replication-cluster-multi-master/galera/getting-started-with-mariadb-galera-cluster/

Disabling query_cache (and setting size to 0M so it doesn't allocate the RAM)
This is a huge reason for seeing deadlocks with Galera, hence the mandatory turning off
Update horizon play to point logs to the correct directory for rsyslog
Added filters and Kibana configuration for heat logs
fixed an issue where a lookup would fail due to recursive children
Merge pull request #143 from SamYaple/sam_testing

As per documentation: https://mariadb.com/kb/en/mariadb/documentation/re...
Merge pull request #154 from cloudnull/inv-bug-fix

fixed an issue where a lookup would fail due to recursive children
Merge pull request #151 from d34dh0r53/pr-130

Fixes #130 by adding configurations for heat and horizon
Minor changes to horizon for Juno release

This change does the following:

- removes unnecessary symlinks (tested horizon w/out and see no 404s
  logged)
- ensures {{ install_lib_dir }}/static/ is owned by webserver user (as
  horizon tries to create {{ install_lib_dir }}/static/scss/assets)
Merge pull request #157 from mattt416/juno_horizon_fix

Minor changes to horizon for Juno release
Merge branch 'master' into nova_juno