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151 lines
4.6 KiB
Markdown
151 lines
4.6 KiB
Markdown
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---
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title: Run the Cassandra Connector Externally
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slug: /connectors/database/cassandra/yaml
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---
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{% connectorDetailsHeader
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name="Cassandra"
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stage="BETA"
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platform="OpenMetadata"
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availableFeatures=["Metadata"]
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unavailableFeatures=["Query Usage", "Data Quality", "dbt", "Owners", "Lineage", "Column-level Lineage", "Tags", "Stored Procedures","Data Profiler"]
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/ %}
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In this section, we provide guides and references to use the Cassandra connector.
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Configure and schedule Cassandra metadata workflows from the OpenMetadata UI:
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- [Requirements](#requirements)
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- [Metadata Ingestion](#metadata-ingestion)
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{% partial file="/v1.7/connectors/ingestion-modes-tiles.md" variables={yamlPath: "/connectors/database/cassandra/yaml"} /%}
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{% partial file="/v1.7/connectors/external-ingestion-deployment.md" /%}
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## Requirements
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To extract metadata using the Cassandra connector, ensure the user in the connection has the following permissions:
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- Read Permissions: The ability to query tables and perform data extraction.
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- Schema Operations: Access to list and describe keyspaces and tables.
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### Python Requirements
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{% partial file="/v1.7/connectors/python-requirements.md" /%}
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To run the Cassandra ingestion, you will need to install:
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```bash
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pip3 install "openmetadata-ingestion[cassandra]"
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```
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## Metadata Ingestion
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All connectors are defined as JSON Schemas.
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[Here](https://github.com/open-metadata/OpenMetadata/blob/main/openmetadata-spec/src/main/resources/json/schema/entity/services/connections/database/cassandraConnection.json)
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you can find the structure to create a connection to Cassandra.
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In order to create and run a Metadata Ingestion workflow, we will follow
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the steps to create a YAML configuration able to connect to the source,
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process the Entities if needed, and reach the OpenMetadata server.
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The workflow is modeled around the following
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[JSON Schema](https://github.com/open-metadata/OpenMetadata/blob/main/openmetadata-spec/src/main/resources/json/schema/metadataIngestion/workflow.json)
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### 1. Define the YAML Config
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This is a sample config for Cassandra:
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{% codePreview %}
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{% codeInfoContainer %}
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#### Source Configuration - Service Connection
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{% codeInfo srNumber=1 %}
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**username**: Username to connect to Cassandra. This user must have the necessary permissions to perform metadata extraction and table queries.
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{% /codeInfo %}
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{% codeInfo srNumber=3 %}
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**hostPort**: When using the `cassandra` connecion schema, the hostPort parameter specifies the host and port of the Cassandra. This should be specified as a string in the format `hostname:port`. E.g., `localhost:9042`.
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{% /codeInfo %}
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{% codeInfo srNumber=4 %}
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**databaseName**: Optional name to give to the database in OpenMetadata. If left blank, we will use default as the database name.
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{% /codeInfo %}
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{% codeInfo srNumber=5 %}
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**Auth Type**: Following authentication types are supported:
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1. **Basic Authentication**:
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We'll use the user credentials to connect to Cassandra
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- **password**: Password of the user.
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2. **DataStax Astra DB Configuration**:
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Configuration for connecting to DataStax Astra DB in the cloud.
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- **secureConnectBundle**: File path to the Secure Connect Bundle (.zip) used for a secure connection to DataStax Astra DB.
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- **token**: The Astra DB application token used for authentication.
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- **connectTimeout**: Timeout in seconds for establishing new connections to Cassandra.
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- **requestTimeout**: Timeout in seconds for individual Cassandra requests.
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{% /codeInfo %}
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{% partial file="/v1.7/connectors/yaml/database/source-config-def.md" /%}
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{% partial file="/v1.7/connectors/yaml/ingestion-sink-def.md" /%}
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{% partial file="/v1.7/connectors/yaml/workflow-config-def.md" /%}
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{% /codeInfo %}
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{% /codeInfoContainer %}
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{% codeBlock fileName="cassandra.yaml" %}
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```yaml {% isCodeBlock=true %}
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source:
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type: cassandra
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serviceName: local_cassandra
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serviceConnection:
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config:
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type: Cassandra
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```
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```yaml {% srNumber=1 %}
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username: username
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```
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```yaml {% srNumber=3 %}
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hostPort: localhost:9042
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```
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```yaml {% srNumber=4 %}
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databaseName: custom_database_name
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```
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```yaml {% srNumber=5 %}
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authType:
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password: password
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cloudConfig:
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secureConnectBundle: <SCB File Path>
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token: <Token String>
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requestTimeout: <Timeout in seconds>
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connectTimeout: <Timeout in seconds>
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```
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{% partial file="/v1.7/connectors/yaml/database/source-config.md" /%}
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{% partial file="/v1.7/connectors/yaml/ingestion-sink.md" /%}
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{% partial file="/v1.7/connectors/yaml/workflow-config.md" /%}
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{% /codeBlock %}
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{% /codePreview %}
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{% partial file="/v1.7/connectors/yaml/ingestion-cli.md" /%}
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