feat/memory store registry #3679
Open
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
…ctionaries to manage memory-based zarr storage. Instances of `ManagedMemoryStore` have a URL representation based on the `id` of the backing dict, e.g. `memory://<id>/`. This means the same memory-backed store can be accessed without passing an explicit store reference.
Ensure that `ManagedMemoryStore` names do not contain the separator character "/" Ensure that `ManagedMemoryStore` instances are tied the PID of the creating process
github-actions
bot
added
the
needs release notes
github-actions
bot
removed
the
needs release notes
…at/memory-store-registry
…at/memory-store-registry
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This PR adds a new managed memory store class (
ManagedMemoryStore) that allows requesting in-memory stores with URL syntax like"memory://my-store/"That's the upside.The downside is that users can't use their own mutable mappings with this store, because we can't make weak references to generic mutable mappings, and so tracking user-defined mutable mappings would keep them from being garbage collected. Instead, instances of
ManagedMemoryStoreare constructed with name and path parameters.A note about pickling:
ManagedMemoryStorecan be pickled, but if it's unpickled in a separate process from where it was created, an exception is raised. Otherwise, writes in a multiprocessing context would appear successful when in fact they were writing to totally separate stores. I don't think there are any threading issues to worry about, but someone who knows more than me should check that.Basic usage:
closes #2906