Rely on WAL mode and the busy timeout.
Also changed:
- Remove extraneous rollbacks when we were only doing a `SELECT`
- Remove try/catch blocks that were made extraneous when removing the extraneous rollbacks
This allows for read and write concurrency without using a global mutex. Operations may still fail they take longer than the busy timeout (5s).
If we get a database lock error after waiting 5s for an operation, we have a problem. So, I think it's actually better to use a busy timeout instead of a global mutex.
Alternatively, we could add a timeout to the global mutex.
Retrying a queue item means cloning it, resetting all execution-related state. Retried queue items reference the item they were retried from by id. This relationship is not enforced by any DB constraints.
- Add `retried_from_item_id` to `session_queue` table in DB in a migration.
- Add `retry_items_by_id` method to session queue service. Accepts a list of queue item IDs and clones them (minus execution state). Returns a list of retried items. Items that are not in a canceled or failed state are skipped.
- Add `retry_items_by_id` HTTP endpoint that maps 1-to-1 to the queue service method.
- Add `queue_items_retried` event, which includes the list of retried items.
- Pass in the `UtilInterface` to the `ModelsInterface` so we can call the simple `signal_progress` method instead of the complicated `emit_invocation_progress` method.
- Only emit load events when starting to load - not after.
- Add more detail to the messages, like submodel type
We use an in-memory cache for PIL images to reduce I/O. If a node mutates the image in any way, the cached image object is also updated (but the on-disk image file is not).
We've lucked out that this hasn't caused major issues in the past (well, maybe it has but we didn't understand them?) mainly because of a happy accident. When you call `context.images.get_pil` in a node, if you provide an image mode (e.g. `mode="RGB"`), we call `convert` on the image. This returns a copy. The node can do whatever it wants to that copy and nothing breaks.
However, when mode is not specified, we return the image directly. This is where we get in trouble - nodes that load the image like this, and then mutate the image, update the cache. Other nodes that reference that same image will now get the mutated version of it.
The fix is super simple - we make sure to return only copies from `get_pil`.
- Update the step callback methods in the invocation API to use the new signal_progress API
- Copy and update the `calc_percentage`, reducing special handling for step and total_steps - a followup commit will fix callers of the step callbacks
The frontend needs to know where queue items came from (i.e. which tab), and where results are going to (i.e. send images to gallery or canvas). The `origin` column is not quite enough to represent this cleanly.
A `destination` column provides the frontend what it needs to handle incoming generations.
The origin is an optional field indicating the queue item's origin. For example, "canvas" when the queue item originated from the canvas or "workflows" when the queue item originated from the workflows tab. If omitted, we assume the queue item originated from the API directly.
- Add migration to add the nullable column to the `session_queue` table.
- Update relevant event payloads with the new field.
- Add `cancel_by_origin` method to `session_queue` service and corresponding route. This is required for the canvas to bail out early when staging images.
- Add `origin` to both `SessionQueueItem` and `Batch` - it needs to be provided initially via the batch and then passed onto the queue item.
-
* use model_class.load_singlefile() instead of converting; works, but performance is poor
* adjust the convert api - not right just yet
* working, needs sql migrator update
* rename migration_11 before conflict merge with main
* Update invokeai/backend/model_manager/load/model_loaders/stable_diffusion.py
Co-authored-by: Ryan Dick <ryanjdick3@gmail.com>
* Update invokeai/backend/model_manager/load/model_loaders/stable_diffusion.py
Co-authored-by: Ryan Dick <ryanjdick3@gmail.com>
* implement lightweight version-by-version config migration
* simplified config schema migration code
* associate sdxl config with sdxl VAEs
* remove use of original_config_file in load_single_file()
---------
Co-authored-by: Lincoln Stein <lstein@gmail.com>
Co-authored-by: Ryan Dick <ryanjdick3@gmail.com>
- Any mypy issues are a misconfiguration of mypy
- Use simple conditionals instead of ternaries
- Consistent & standards-compliant docstring formatting
- Use `dict` instead of `typing.Dict`
