The ceilometer.event.storage.impl_sqlalchemy
ModuleΒΆ
SQLAlchemy storage backend.
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class
ceilometer.event.storage.impl_sqlalchemy.
Connection
(url)[source] Bases:
ceilometer.event.storage.base.Connection
Put the event data into a SQLAlchemy database.
Tables:
- EventType - event definition - { id: event type id desc: description of event } - Event - event data - { id: event id message_id: message id generated = timestamp of event event_type_id = event type -> eventtype.id } - TraitInt - int trait value - { event_id: event -> event.id key: trait type value: integer value } - TraitDatetime - int trait value - { event_id: event -> event.id key: trait type value: datetime value } - TraitText - int trait value - { event_id: event -> event.id key: trait type value: text value } - TraitFloat - int trait value - { event_id: event -> event.id key: trait type value: float value }
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clear
()[source]
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clear_expired_event_data
(ttl)[source] Clear expired data from the backend storage system.
Clearing occurs according to the time-to-live.
Parameters: ttl – Number of seconds to keep records for.
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get_event_types
()[source] Return all event types as an iterable of strings.
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get_events
(event_filter)[source] Return an iterable of model.Event objects.
Parameters: event_filter – EventFilter instance
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get_trait_types
(event_type)[source] Return a dictionary containing the name and data type of the trait.
Only trait types for the provided event_type are returned. :param event_type: the type of the Event
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get_traits
(event_type, trait_type=None)[source] Return all trait instances associated with an event_type.
If trait_type is specified, only return instances of that trait type. :param event_type: the type of the Event to filter by :param trait_type: the name of the Trait to filter by
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record_events
(event_models)[source] Write the events to SQL database via sqlalchemy.
Parameters: event_models – a list of model.Event objects. Returns a list of events that could not be saved in a (reason, event) tuple. Reasons are enumerated in storage.model.Event
Flush when they’re all added, unless new EventTypes or TraitTypes are added along the way.
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upgrade
()[source]
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