cinder.scheduler.filter_scheduler module¶
The FilterScheduler is for creating volumes.
You can customize this scheduler by specifying your own volume Filters and Weighing Functions.
- class FilterScheduler(*args, **kwargs)¶
Bases:
cinder.scheduler.driver.Scheduler
Scheduler that can be used for filtering and weighing.
- backend_passes_filters(context, backend, request_spec, filter_properties)¶
Check if the specified backend passes the filters.
- find_retype_backend(context, request_spec, filter_properties=None, migration_policy='never')¶
Find a backend that can accept the volume with its new type.
- get_backup_host(volume, driver=None)¶
Must override schedule method for scheduler to work.
- get_pools(context, filters)¶
Must override schedule method for scheduler to work.
- populate_filter_properties(request_spec, filter_properties)¶
Stuff things into filter_properties.
Can be overridden in a subclass to add more data.
- schedule(context, topic, method, *args, **kwargs)¶
Schedule contract that returns best-suited host for this request.
- schedule_create_group(context, group, group_spec, request_spec_list, group_filter_properties, filter_properties_list)¶
Must override schedule method for scheduler to work.
- schedule_create_volume(context, request_spec, filter_properties)¶
Must override schedule method for scheduler to work.