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# ScyllaDB Cloud online store | ||
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## Description | ||
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ScyllaDB is a low-latency and high-performance Cassandra-compatible (uses CQL) database. You can use the existing Cassandra connector to use ScyllaDB as an online store in Feast. | ||
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The [ScyllaDB](https://www.scylladb.com/) online store provides support for materializing feature values into a ScyllaDB or [ScyllaDB Cloud](https://www.scylladb.com/product/scylla-cloud/) cluster for serving online features real-time. | ||
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## Getting started | ||
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Install Feast with Cassandra support: | ||
```bash | ||
pip install "feast[cassandra]" | ||
``` | ||
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Create a new Feast project: | ||
```bash | ||
feast init REPO_NAME -t cassandra | ||
``` | ||
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### Example (ScyllaDB) | ||
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{% code title="feature_store.yaml" %} | ||
```yaml | ||
project: scylla_feature_repo | ||
registry: data/registry.db | ||
provider: local | ||
online_store: | ||
type: cassandra | ||
hosts: | ||
- 172.17.0.2 | ||
keyspace: feast | ||
username: scylla | ||
password: password | ||
``` | ||
{% endcode %} | ||
### Example (ScyllaDB Cloud) | ||
{% code title="feature_store.yaml" %} | ||
```yaml | ||
project: scylla_feature_repo | ||
registry: data/registry.db | ||
provider: local | ||
online_store: | ||
type: cassandra | ||
hosts: | ||
- node-0.aws_us_east_1.xxxxxxxx.clusters.scylla.cloud | ||
- node-1.aws_us_east_1.xxxxxxxx.clusters.scylla.cloud | ||
- node-2.aws_us_east_1.xxxxxxxx.clusters.scylla.cloud | ||
keyspace: feast | ||
username: scylla | ||
password: password | ||
``` | ||
{% endcode %} | ||
The full set of configuration options is available in [CassandraOnlineStoreConfig](https://rtd.feast.dev/en/master/#feast.infra.online_stores.contrib.cassandra_online_store.cassandra_online_store.CassandraOnlineStoreConfig). | ||
For a full explanation of configuration options please look at file | ||
`sdk/python/feast/infra/online_stores/contrib/cassandra_online_store/README.md`. | ||
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Storage specifications can be found at `docs/specs/online_store_format.md`. | ||
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## Functionality Matrix | ||
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The set of functionality supported by online stores is described in detail [here](overview.md#functionality). | ||
Below is a matrix indicating which functionality is supported by the Cassandra plugin. | ||
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| | Cassandra | | ||
| :-------------------------------------------------------- | :-------- | | ||
| write feature values to the online store | yes | | ||
| read feature values from the online store | yes | | ||
| update infrastructure (e.g. tables) in the online store | yes | | ||
| teardown infrastructure (e.g. tables) in the online store | yes | | ||
| generate a plan of infrastructure changes | yes | | ||
| support for on-demand transforms | yes | | ||
| readable by Python SDK | yes | | ||
| readable by Java | no | | ||
| readable by Go | no | | ||
| support for entityless feature views | yes | | ||
| support for concurrent writing to the same key | no | | ||
| support for ttl (time to live) at retrieval | no | | ||
| support for deleting expired data | no | | ||
| collocated by feature view | yes | | ||
| collocated by feature service | no | | ||
| collocated by entity key | no | | ||
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To compare this set of functionality against other online stores, please see the full [functionality matrix](overview.md#functionality-matrix). | ||
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## Resources | ||
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* [Sample application with ScyllaDB](https://feature-store.scylladb.com/stable/) | ||
* [ScyllaDB website](https://www.scylladb.com/) | ||
* [ScyllaDB Cloud documentation](https://cloud.docs.scylladb.com/stable/) |
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syntax = "proto3"; | ||
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package feast.registry; | ||
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import "google/protobuf/timestamp.proto"; | ||
import "google/protobuf/empty.proto"; | ||
import "feast/core/Registry.proto"; | ||
import "feast/core/Entity.proto"; | ||
import "feast/core/DataSource.proto"; | ||
import "feast/core/FeatureView.proto"; | ||
import "feast/core/RequestFeatureView.proto"; | ||
import "feast/core/StreamFeatureView.proto"; | ||
import "feast/core/OnDemandFeatureView.proto"; | ||
import "feast/core/FeatureService.proto"; | ||
import "feast/core/SavedDataset.proto"; | ||
import "feast/core/ValidationProfile.proto"; | ||
import "feast/core/InfraObject.proto"; | ||
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service RegistryServer{ | ||
// Entity RPCs | ||
rpc GetEntity (GetEntityRequest) returns (feast.core.Entity) {} | ||
rpc ListEntities (ListEntitiesRequest) returns (ListEntitiesResponse) {} | ||
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// DataSource RPCs | ||
rpc GetDataSource (GetDataSourceRequest) returns (feast.core.DataSource) {} | ||
rpc ListDataSources (ListDataSourcesRequest) returns (ListDataSourcesResponse) {} | ||
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// FeatureView RPCs | ||
rpc GetFeatureView (GetFeatureViewRequest) returns (feast.core.FeatureView) {} | ||
rpc ListFeatureViews (ListFeatureViewsRequest) returns (ListFeatureViewsResponse) {} | ||
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// RequestFeatureView RPCs | ||
rpc GetRequestFeatureView (GetRequestFeatureViewRequest) returns (feast.core.RequestFeatureView) {} | ||
rpc ListRequestFeatureViews (ListRequestFeatureViewsRequest) returns (ListRequestFeatureViewsResponse) {} | ||
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// StreamFeatureView RPCs | ||
rpc GetStreamFeatureView (GetStreamFeatureViewRequest) returns (feast.core.StreamFeatureView) {} | ||
rpc ListStreamFeatureViews (ListStreamFeatureViewsRequest) returns (ListStreamFeatureViewsResponse) {} | ||
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// OnDemandFeatureView RPCs | ||
rpc GetOnDemandFeatureView (GetOnDemandFeatureViewRequest) returns (feast.core.OnDemandFeatureView) {} | ||
rpc ListOnDemandFeatureViews (ListOnDemandFeatureViewsRequest) returns (ListOnDemandFeatureViewsResponse) {} | ||
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// FeatureService RPCs | ||
rpc GetFeatureService (GetFeatureServiceRequest) returns (feast.core.FeatureService) {} | ||
rpc ListFeatureServices (ListFeatureServicesRequest) returns (ListFeatureServicesResponse) {} | ||
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// SavedDataset RPCs | ||
rpc GetSavedDataset (GetSavedDatasetRequest) returns (feast.core.SavedDataset) {} | ||
rpc ListSavedDatasets (ListSavedDatasetsRequest) returns (ListSavedDatasetsResponse) {} | ||
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// ValidationReference RPCs | ||
rpc GetValidationReference (GetValidationReferenceRequest) returns (feast.core.ValidationReference) {} | ||
rpc ListValidationReferences (ListValidationReferencesRequest) returns (ListValidationReferencesResponse) {} | ||
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rpc ListProjectMetadata (ListProjectMetadataRequest) returns (ListProjectMetadataResponse) {} | ||
rpc GetInfra (GetInfraRequest) returns (feast.core.Infra) {} | ||
rpc Refresh (RefreshRequest) returns (google.protobuf.Empty) {} | ||
rpc Proto (google.protobuf.Empty) returns (feast.core.Registry) {} | ||
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} | ||
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message RefreshRequest { | ||
string project = 1; | ||
} | ||
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message GetInfraRequest { | ||
string project = 1; | ||
bool allow_cache = 2; | ||
} | ||
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message ListProjectMetadataRequest { | ||
string project = 1; | ||
bool allow_cache = 2; | ||
} | ||
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message ListProjectMetadataResponse { | ||
repeated feast.core.ProjectMetadata project_metadata = 1; | ||
} | ||
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message GetEntityRequest { | ||
string name = 1; | ||
string project = 2; | ||
bool allow_cache = 3; | ||
} | ||
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message ListEntitiesRequest { | ||
string project = 1; | ||
bool allow_cache = 2; | ||
} | ||
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message ListEntitiesResponse { | ||
repeated feast.core.Entity entities = 1; | ||
} | ||
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// DataSources | ||
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message GetDataSourceRequest { | ||
string name = 1; | ||
string project = 2; | ||
bool allow_cache = 3; | ||
} | ||
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message ListDataSourcesRequest { | ||
string project = 1; | ||
bool allow_cache = 2; | ||
} | ||
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message ListDataSourcesResponse { | ||
repeated feast.core.DataSource data_sources = 1; | ||
} | ||
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// FeatureViews | ||
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message GetFeatureViewRequest { | ||
string name = 1; | ||
string project = 2; | ||
bool allow_cache = 3; | ||
} | ||
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message ListFeatureViewsRequest { | ||
string project = 1; | ||
bool allow_cache = 2; | ||
} | ||
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message ListFeatureViewsResponse { | ||
repeated feast.core.FeatureView feature_views = 1; | ||
} | ||
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// RequestFeatureView | ||
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message GetRequestFeatureViewRequest { | ||
string name = 1; | ||
string project = 2; | ||
bool allow_cache = 3; | ||
} | ||
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message ListRequestFeatureViewsRequest { | ||
string project = 1; | ||
bool allow_cache = 2; | ||
} | ||
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message ListRequestFeatureViewsResponse { | ||
repeated feast.core.RequestFeatureView request_feature_views = 1; | ||
} | ||
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// StreamFeatureView | ||
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message GetStreamFeatureViewRequest { | ||
string name = 1; | ||
string project = 2; | ||
bool allow_cache = 3; | ||
} | ||
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message ListStreamFeatureViewsRequest { | ||
string project = 1; | ||
bool allow_cache = 2; | ||
} | ||
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message ListStreamFeatureViewsResponse { | ||
repeated feast.core.StreamFeatureView stream_feature_views = 1; | ||
} | ||
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// OnDemandFeatureView | ||
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message GetOnDemandFeatureViewRequest { | ||
string name = 1; | ||
string project = 2; | ||
bool allow_cache = 3; | ||
} | ||
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message ListOnDemandFeatureViewsRequest { | ||
string project = 1; | ||
bool allow_cache = 2; | ||
} | ||
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message ListOnDemandFeatureViewsResponse { | ||
repeated feast.core.OnDemandFeatureView on_demand_feature_views = 1; | ||
} | ||
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// FeatureServices | ||
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message GetFeatureServiceRequest { | ||
string name = 1; | ||
string project = 2; | ||
bool allow_cache = 3; | ||
} | ||
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message ListFeatureServicesRequest { | ||
string project = 1; | ||
bool allow_cache = 2; | ||
} | ||
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message ListFeatureServicesResponse { | ||
repeated feast.core.FeatureService feature_services = 1; | ||
} | ||
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// SavedDataset | ||
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message GetSavedDatasetRequest { | ||
string name = 1; | ||
string project = 2; | ||
bool allow_cache = 3; | ||
} | ||
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message ListSavedDatasetsRequest { | ||
string project = 1; | ||
bool allow_cache = 2; | ||
} | ||
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message ListSavedDatasetsResponse { | ||
repeated feast.core.SavedDataset saved_datasets = 1; | ||
} | ||
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// ValidationReference | ||
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message GetValidationReferenceRequest { | ||
string name = 1; | ||
string project = 2; | ||
bool allow_cache = 3; | ||
} | ||
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message ListValidationReferencesRequest { | ||
string project = 1; | ||
bool allow_cache = 2; | ||
} | ||
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message ListValidationReferencesResponse { | ||
repeated feast.core.ValidationReference validation_references = 1; | ||
} |
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