Registry store plugin #1812

DvirDukhan · 2021-08-29T21:46:14Z

What this PR does / why we need it:
Main feature: This PR allows adding third-party registry stores, to allow saving the registry in custom storage services other than s3/gcs/files.
Additional changes:

Moved aws/gcp/local RegistryStore implementation to their respected files (together with their providers)
Registry class is now being initialized with RegistryConfig.
Which issue(s) this PR fixes:

None

Does this PR introduce a user-facing change?:

This PR adds a new optional field under the registry configuration, called `registry_store_provider`.  This allows loading a third-party class, implementing `RegistryStore`.  The third-party class name must end with `RegisrtryStore`, for example `foo.registry_store.FooRegistryStore`.

feast-ci-bot · 2021-08-29T21:46:23Z

Hi @DvirDukhan. Thanks for your PR.

I'm waiting for a feast-dev member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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codecov-commenter · 2021-08-29T21:48:56Z

Codecov Report

Merging #1812 (b795399) into master (24d21ec) will increase coverage by 0.08%.
The diff coverage is 86.03%.

@@            Coverage Diff             @@
##           master    #1812      +/-   ##
==========================================
+ Coverage   84.87%   84.96%   +0.08%     
==========================================
  Files          91       92       +1     
  Lines        6961     7029      +68     
==========================================
+ Hits         5908     5972      +64     
- Misses       1053     1057       +4

Flag	Coverage Δ
integrationtests	`84.89% <86.03%> (+0.09%)`	⬆️
unittests	`63.46% <55.85%> (+0.27%)`	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
sdk/python/feast/repo_operations.py	`44.21% <0.00%> (-0.37%)`	⬇️
sdk/python/feast/registry_store.py	`75.00% <75.00%> (ø)`
sdk/python/feast/infra/aws.py	`88.88% <80.35%> (-11.12%)`	⬇️
sdk/python/feast/infra/gcp.py	`92.78% <86.53%> (-7.22%)`	⬇️
sdk/python/feast/registry.py	`81.06% <88.00%> (-0.16%)`	⬇️
sdk/python/feast/infra/local.py	`92.50% <93.33%> (+0.34%)`	⬆️
sdk/python/feast/feature_store.py	`93.76% <100.00%> (ø)`
sdk/python/feast/repo_config.py	`93.02% <100.00%> (+0.05%)`	⬆️
.../python/tests/integration/registration/test_cli.py	`100.00% <100.00%> (ø)`
...on/tests/integration/registration/test_registry.py	`100.00% <100.00%> (ø)`
... and 1 more

Continue to review full report at Codecov.

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woop · 2021-08-30T22:25:34Z

/ok-to-test

achals · 2021-09-07T15:48:13Z

I'm going to review this today.

achals · 2021-09-07T18:01:42Z

sdk/python/feast/registry.py

-                f"Supported schemes are file and gs."
-            )
-        self.cached_registry_proto_ttl = cache_ttl
+            registry_store_provider = str(registry_store_provider)


I wonder if it makes sense to pull out the RegistryStore abstract class into it's own file for simplicity

woop · 2021-09-07T19:50:20Z

sdk/python/feast/repo_config.py

@@ -52,6 +52,9 @@ class Config:
 class RegistryConfig(FeastBaseModel):
    """ Metadata Store Configuration. Configuration that relates to reading from and writing to the Feast registry."""

+    registry_store_provider: Optional[StrictStr]


Reusing the name provider here is quite confusing since we have a provider concept already. Is it possible for us to infer the backend based on the URI, or use something like type: to specify the class location? That would be consistent with OnlineStore, OfflineStore, and Provider.

DvirDukhan · 2021-09-09T13:01:48Z

Rebased and addressed comments.

achals · 2021-09-09T21:21:25Z

sdk/python/feast/registry.py

+            if "." not in registry_store_type:
+                if uri.scheme == "gs":
+                    from feast.infra.gcp import GCSRegistryStore
+
+                    self._registry_store = GCSRegistryStore(registry_path)
+                elif uri.scheme == "s3":
+                    from feast.infra.aws import S3RegistryStore
+
+                    self._registry_store = S3RegistryStore(registry_path)
+                elif uri.scheme == "file" or uri.scheme == "":
+                    from feast.infra.local import LocalRegistryStore
+
+                    self._registry_store = LocalRegistryStore(
+                        repo_path=repo_path, registry_path_string=registry_path
+                    )


When would we hit this case? When users specified registry_store_type: S3RegistryStore, something like that?

I think that in that case, we probably want to have a dict of the "shortcut" types mapping to the fully qualified type (like in https://github.com/feast-dev/feast/blob/master/sdk/python/feast/repo_config.py#L22), and use the dynamic importer.get_class_from_type path.

@achals thanks for the review.
I did the modifications, however, since there is a single constructor call self._registry_store = cls(registry_config, repo_path) this enforces S3RegistryStore and GCSRegistryStore constructors to have the signature:
def __init__(self, registry_config: RegistryConfig, repo_path: Path):
This is a bit awkward IMO since repo_path is not being used in those classes, it is just for the LocalRegistryStore
Let me know if you think there is a better approach to consolidate those constructors.

I think it's better to have a single interface even if it means passing in an unused parameter in some of the implementations, so I'd be okay with that change.

thanks, @achals. The change is already in the latest modification on the PR.

achals

Sorry for the second back and forth @DvirDukhan , but I think that's the only other major concern I have. If we address that then i'm happy to lgtm

woop · 2021-09-11T17:40:48Z

sdk/python/feast/registry_store.py

+    @abstractmethod
+    def teardown(self):
+        """
+        Tear down all resources.


All resources or the registry?

woop · 2021-09-11T17:41:15Z

sdk/python/feast/registry_store.py

+    """
+
+    @abstractmethod
+    def get_registry_proto(self):


Should the return type be a part of this method?

woop · 2021-09-11T17:43:42Z

sdk/python/feast/registry_store.py

+
+class RegistryStore(ABC):
+    """
+    RegistryStore: abstract base class implemented by specific backends (local file system, GCS)


This comment can be made tighter. We already know the class is RegistryStore, and an abstract base class, so that doesn't need to be repeated.

What about

A registry store is a storage backend for the Feast registry.

or if we prefer classes.

RegistryStore is a storage backend for the Registry class.

Signed-off-by: DvirDukhan <[email protected]>

achals

/lgtm

feast-ci-bot · 2021-09-14T17:51:08Z

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: achals, DvirDukhan

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achals · 2021-09-14T17:51:18Z

Thanks @DvirDukhan ! The change looks good to me.

DvirDukhan requested review from achals, tsotnet, woop and a team as code owners August 29, 2021 21:46

feast-ci-bot added release-note needs-kind labels Aug 29, 2021

feast-ci-bot added needs-ok-to-test size/XL labels Aug 29, 2021

feast-ci-bot added ok-to-test and removed needs-ok-to-test labels Aug 30, 2021

DvirDukhan force-pushed the registry_store_plugin branch from e643b53 to e37ec13 Compare September 2, 2021 18:30

achals self-assigned this Sep 7, 2021

achals added the kind/feature New feature or request label Sep 7, 2021

feast-ci-bot removed the needs-kind label Sep 7, 2021

achals reviewed Sep 7, 2021

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woop reviewed Sep 7, 2021

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DvirDukhan force-pushed the registry_store_plugin branch from e37ec13 to 9f337b9 Compare September 9, 2021 12:59

achals reviewed Sep 9, 2021

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achals requested changes Sep 9, 2021

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woop reviewed Sep 11, 2021

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DvirDukhan added 3 commits September 12, 2021 14:27

moved GCSRegistryStore to gcp

0061686

Signed-off-by: DvirDukhan <[email protected]>

moved S3RegistryStore to aws

39c8576

Signed-off-by: DvirDukhan <[email protected]>

moved LocalRegistryStore to local

c9c285e

Signed-off-by: DvirDukhan <[email protected]>

DvirDukhan added 8 commits September 12, 2021 14:31

tests pass WO docstring

e7a2c89

Signed-off-by: DvirDukhan <[email protected]>

added test

a6a9ed8

Signed-off-by: DvirDukhan <[email protected]>

after rebase

dff9aff

Signed-off-by: DvirDukhan <[email protected]>

after rebase

08584ca

Signed-off-by: DvirDukhan <[email protected]>

moved RegistryStore to registry_store.py

8c6714c

Signed-off-by: DvirDukhan <[email protected]>

renamed registry_store_provider to registry_store_type

d843864

Signed-off-by: DvirDukhan <[email protected]>

fixed registry_store.py comments

cf1085b

Signed-off-by: DvirDukhan <[email protected]>

dymanic load of RegistryStore class

b795399

Signed-off-by: DvirDukhan <[email protected]>

DvirDukhan force-pushed the registry_store_plugin branch from 9f337b9 to b795399 Compare September 12, 2021 12:53

achals approved these changes Sep 14, 2021

View reviewed changes

feast-ci-bot added the lgtm label Sep 14, 2021

feast-ci-bot added the approved label Sep 14, 2021

feast-ci-bot merged commit 77cdc0e into feast-dev:master Sep 14, 2021

woop mentioned this pull request Jan 4, 2022

RegistryStore customization #2183

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Registry store plugin #1812

Registry store plugin #1812

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Registry store plugin #1812

Registry store plugin #1812

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