The JDBC driver version 2.6.19 and above supports Cloud Fetch, a capability that fetches query results through the cloud storage that is set up in your Databricks deployment. OAuth M2M or OAuth 2.0 client credentials authentication OAuth U2M or OAuth 2.0 browser-based authentication OAuth 2.0 token pass-through authentication Package org.example import import import import import import public class Main To create a personal access token, see Databricks personal access tokens for workspace users. Set DATABRICKS_TOKEN to the Databricks personal access token for the target user. To get the HTTP Path value, see Retrieve the connection details. Set DATABRICKS_HTTP_PATH to the HTTP Path value for the target cluster or SQL warehouse in the workspace. Set DATABRICKS_SERVER_HOSTNAME to the workspace instance name, for example. This example assumes that the following environment variables have been set: This example queries the trips table in the samples catalog’s nyctrips schema and displays the results. Each should come from an external location, for example an environment variable.Ī complete example that passes individual credential properties to the DriverManager for Databricks personal access token authentication is as follows. Replace and as needed for each of the sensitive credential properties as listed in the following sections. Replace and as needed for each of the general configuration properties as listed in the following sections. Replace with the Databricks compute resource’s HTTP Path value. Replace with the Databricks compute resource’s Server Hostname value. In the preceding Java code, replace the following placeholders: forName ( ".Driver" ) String url = "jdbc:databricks://:443" Properties p = new java. Pass individual credential properties to the DriverManager. To learn more about the Cloud Fetch architecture, see How We Achieved High-bandwidth Connectivity With BI Tools. If you have versioning enabled, you can still enable Cloud Fetch by following the instructions in Advanced configurations. Also, your corresponding Amazon S3 buckets must not have versioning enabled. These marked files are completely deleted after an additional 24 hours.Ĭloud Fetch is only available for E2 workspaces. Smaller results are retrieved directly from Databricks.ĭatabricks automatically garbage collects the accumulated files, which are marked for deletion after 24 hours. The ODBC driver then uses the URLs to download the results directly from DBFS.Ĭloud Fetch is only used for query results larger than 1 MB. When the driver sends fetch requests after query completion, Databricks generates and returns presigned URLs to the uploaded files. Query results are uploaded to an internal DBFS storage location as Arrow-serialized files of up to 20 MB. To use Cloud Fetch to extract query results using this capability, use Databricks Runtime 8.3 or above. The ODBC driver version 2.6.17 and above supports Cloud Fetch, a capability that fetches query results through the cloud storage that is set up in your Databricks deployment. See also ODBC driver capabilities for more driver configurations. The installation directory is /Library/simba/spark.Ĭhoose a Data Source Name and create key-value pairs to set the mandatory ODBC configuration and connection parameters. See Download the ODBC driver.ĭouble-click on the dowloaded. dmg file to install it.ĭownload the latest driver version for macOS, if you haven’t already done so. Install ODBC Manager by using Homebrew, or download the ODBC Manager and then double-click on the downloaded. To set up a DSN on macOS, use the ODBC Manager. In macOS, you can set up a Data Source Name (DSN) configuration to connect your ODBC client application to Databricks. Install and configure the ODBC driver for macOS Select the Simba Spark ODBC Driver from the list of installed drivers.Ĭhoose a Data Source Name and set the mandatory ODBC configuration and connection parameters. Go to the User DSN or System DSN tab and click the Add button. Navigate to the Drivers tab to verify that the driver (Simba Spark ODBC Driver) is installed. The installation directory is C:\Program Files\Simba Spark ODBC Driver.įrom the Start menu, search for ODBC Data Sources to launch the ODBC Data Source Administrator. To set up a DSN configuration, use the Windows ODBC Data Source Administrator.ĭownload the latest driver version for Windows, if you haven’t already done so. In Windows, you can set up a Data Source Name (DSN) configuration to connect your ODBC client application to Databricks. Install and configure the ODBC driver for Windows
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |