In this article
Overview
You can use this account type to connect Databricks Snaps with data sources that use a Databricks Account with a DBFS location as the source.
Prerequisites
A valid Databricks account.
Certified JDBC JAR File: databricks-jdbc-2.6.25-1.jar
Limitations and Known Issues
None.
Account Settings
Asterisk ( * ): Indicates a mandatory field.
Suggestion icon (
): Indicates a list that is dynamically populated based on the configuration.Expression icon (
): Indicates whether the value is an expression (if enabled) or a static value (if disabled). Learn more about Using Expressions in SnapLogic.Add icon (
): Indicates that you can add fields in the fieldset.Remove icon (
): Indicates that you can remove fields from the fieldset.
Field Name | Field Type | Field Dependency | Description | |
|---|---|---|---|---|
Label* Default Value: N/A | String | None. | Specify a unique label for the account. | |
Account Properties* | Use this fieldset to configure the information required to establish a JDBC connection with the account. This fieldset consists of the following fields:
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Download JDBC Driver Automatically Default Value: Not Selected Example: Selected | Checkbox | None. | Select this checkbox to allow the Snap account to download the certified JDBC Driver for DLP. The following fields are disabled when this checkbox is selected:
To use a JDBC Driver that of your choice, clear this checkbox, upload (to SLDB), and choose the required JAR files in the JDBC JAR(s): and/or ZIPs: JDBC Driver field. Use of Custom JDBC JAR version You can use a different JAR file version other than the recommended list of JAR file versions. Spark JDBC and Databricks JDBC If you do not select this checkbox and use an older JDBC JAR file (older than version 2.6.25), ensure that you use:
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JDBC URL* Default Value: N/A Example: jdbc:spark://adb-2409532680880038.18.azuredatabricks.net:443/default;transportMode=http;ssl=1;httpPath=sql/protocolv1/o/2409532680880038/0326-212833-drier754;AuthMech=3; | String | None. | Enter the JDBC driver connection string that you want to use in the syntax provided below, for connecting to your DLP instance. Learn more in Microsoft's JDBC and ODBC drivers and configuration parameters. jdbc:spark://dbc-ede87531-a2ce.cloud.databricks.com:443/default;transportMode=http;ssl=1;httpPath= Avoid passing a Password inside the JDBC URL If you specify the password inside the JDBC URL, it is saved as it is and is not encrypted. Instead, we recommend using the provided Password field to ensure that your password is encrypted. | |
Use Token Based Authentication Default value: Selected Example: Not selected | Checkbox | None. | Select this checkbox to use token-based authentication for connecting to the target database (DLP) instance. Activates the Token field. | |
Token* Default value: N/A Example: <Encrypted> | String | Use Token Based Authentication checkbox is selected. | Enter the token value for accessing the target database/folder path. | |
Database name* Default value: N/A Example: Default | String | None. | Enter the name of the database to use by default. This database is used if you do not specify one in the Databricks Select or Databricks Insert Snaps. | |
Source/Target Location* Default value: DBFS Example: JDBC | Dropdown list | None. | Select the source or target data warehouse into which the queries must be loaded, that is DBFS. Activates the DBFS Folder path (source for loading Databricks table) field. | |
DBFS Folder path (source for loading Databricks table) Default value: N/A Example: /data_folder/path | String | Source/Target Location is DBFS. | Enter the folder path for the source files to be loaded from. The path must begin with a forward slash | |
Advanced Properties | Other parameters that you want to specify to configure the account. | |||
URL properties | Use this fieldset to define the account parameter's name and its corresponding value. Click + to add the parameters and the corresponding values. Add each URL property-value pair in a separate row. | |||
URL property name Default Value: N/A Example: queryTimeout | N/A | None | Specify the name of the parameter for the URL property. | |
URL property value Default Value: N/A Example: 0 | N/A | None | Specify the value for the URL property parameter. | |
Batch size* Default Value: N/A Example: 3 | Integer | None | Specify the number of queries that you want to execute at a time.
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Fetch size* Default Value: 100 Example: 12 | Integer | None | Specify the number of rows a query must fetch for each execution. Larger values could cause the server to run out of memory. | |
Min pool size* Default Value: 3 Example: 0 | Integer | None | Specify the minimum number of idle connections that you want the pool to maintain at a time. | |
Max pool size* Default Value: 15 Example: 0 | Integer | None | Specify the maximum number of connections that you want the pool to maintain at a time. | |
Max life time* Default Value: 60 Example: 50 | Integer | None | Specify the maximum lifetime of a connection in the pool, in seconds:
Minimum value: 0 | |
Idle Timeout* Default Value: 5 Example: 4 | Integer | None | Specify the maximum amount of time in seconds that a connection is allowed to sit idle in the pool. 0 (zero) indicates that idle connections are never removed from the pool. Minimum value: 0 | |
Checkout timeout* Default Value: 10000 Example: 9000 | Integer | None | Specify the maximum time in milliseconds you want the system to wait for a connection to become available when the pool is exhausted. If you provide 0, the Snap waits infinitely until the connection is available. Therefore, we recommend you not to specify 0 for Checkout Timeout. Minimum value: 0 | |