Queens Series Release Notes¶
Add openstack-db tag to Exec that run db-sync.
Previously the number of heat engine workers was set to $::os_service_default which would use the default from python. Usually this means it will use the number of processors in the system. We have found that this is not an ideal default for large number of cpu systems. We have a provided fact specific to heat engine named $::os_workers_heat_engine. We have changed the default value for the heat engine works to use this fact. This fact will cap the value at 24 but usually is the larger of (number of procs / 2) or 4.
Remove support for heat-api-cloudwatch service. It’s been removed from heat since Queens release.
Adds the use_journal option for configuring oslo.log. This will enable passing the logs to journald.
Heat has additional configuration option for plugin_dirs parameter. This parameter provides a list of directories to search for plug-ins. This change allows configuration of plugin_dirs parameter in heat.conf file.
Add wsgi_process_display_name option to add customization for wsgi process display name.
The access_log_file, access_log_format, error_log_file fields for each apache vhost are now configurable.
Expose use_json logging parameter, which enables JSON formatted logging.
Add new parameter ‘default_user_data_format’ to specify the user_data format in the server.
revocation_cache_time option is now deprecated for removal, the parameter has no effect.