Dremio

Connectivity Summary

An out of the box connector is available for Dremio databases. It provides support for crawling database objects, profiling of sample data and lineage building.

The drivers used by the connector are given below:

Driver / API: Dremio JDBC Driver

Version: 4.3.1 

Details: Driver can be downloaded from the official website of Dremio given below:
https://www.dremio.com/drivers/

Connector Capabilities

The connector capabilities are shown below:

Crawling

Supported objects and data types for Crawling are:

  • Tables
  • Table Columns
  • Views
Note: Unsupported Data Types: Binary Varying
Please see this article Crawling Data for more details on crawling.  

Profiling

Please see Profiling Data for more details on profiling.

Feature

Support

Remarks

Table Profiling

Row count, Columns count, View sample data

 

View Profiling

Row count, Columns count, View sample data

View is treated as a table for profiling purposes

Column Profiling

Min, Max, Null count, distinct, top 50 values

 

Full Profiling 

Supported

 

Sample Profiling

Supported

 

Lineage Building

Lineage Details
Table Lineage Supported
Column Lineage Supported
Lineage Sources Data Sources, Views, Query Logs

Querying 

Operation 

Details

Select

Supported

Insert

Not supported, by default.

Update

Not supported, by default.

Delete

Not supported, by default.

Joins within database

Supported

Joins outside database

Not supported

Aggregations

Supported

Group By

Supported

Order By

Supported

By default the service account provided for the connector will be used for any query operations. If the service account has write privileges, then Insert / Update / Delete queries can be executed.

Pre-requisites

To use the connector, the following need to be available:

  • Connection details as specified in the following section should be available.
  • A service account with read privileges.
  • JDBC driver is provided by default. In case it needs to be changed, add Dremio client drivers into the OvalEdge Jar path to communicate with the Dremio database. 

Check the Configuration section for further details on how to add the drivers to the jar path.

Connection Details

The following connection settings should be added for connecting to a Dremio database:

  • Database Type: Dremio
  • License Type: Standard, Auto Lineage
  • Connection Name: Select a Connection name for the Dremio database. The name that you specify is a reference name to easily identify your Dremio database connection in OvalEdge. Example: Dremio Connection1
  • Server: Database instance URL (on-premises/cloud-based)
    Example: 34.54.56.78
  • Port Number: 31010
  • Driver Name: JDBC driver name for Dremio. It will be auto-populated.
    Example: com.dremio.jdbc.Driver
  • Username: User account login credential (only for Dremio Authentication
  • Password: Password (only for Dremio Authentication)
  • Connection String: Dremio  connection string. Set the Connection string toggle button to automatic, to get the details automatically from the credentials provided. Alternatively, you can manually enter the string.
    Format: jdbc:dremio:direct={server}:31010
    Example: jdbc:dremio:direct=34.54.56.78:31010

Once connectivity is established, additional configurations for Crawling and Profiling can be specified.

Property

Details

Crawler configurations

Tables, Views, Columns

By default it is selected true

Relationships

Need to select for crawl relationships

Procedures, Functions, View, Source codes

Need to select for crawl Procedures, functions view source codes

Crawler rules

Default include tables regex has  regex = (.*) , which can crawl all the tables

Profile Settings

Tables and columns

By default it is selected true

Views and columns

By default it is selected true

Profile Rules

Default include tables regex has  regex = (.*) , which can profile all the tables

Query Log Setting