Troubleshooting
Problem
Dremio is offering an alternative JDBC driver based on Apache Arrow Flight. The Dremio JDBC download page defaults to this driver, and attempting to use it with Cognos Analytics will return an error.
Symptom
The <cognos\drivers> folder has a copy of the Dremio Flight driver (flight-sql-jdbc-driver-version.jar).
Creating a connection in Cognos Analytics that specifies the new driver class name (org.apache.arrow.driver.jdbc.ArrowFlightJdbcDriver) and URL protocol (arrow-flight-sql) throws a not supported error.
If a connection is created that uses the default driver class name and URL protocol used by Dynamic Query, the Java runtime environment fails to locate the driver, if <cognos\drivers> does not include a copy of the supported driver (dremio-jdbc-driver-version.jar).
Creating a connection in Cognos Analytics that specifies the new driver class name (org.apache.arrow.driver.jdbc.ArrowFlightJdbcDriver) and URL protocol (arrow-flight-sql) throws a not supported error.
If a connection is created that uses the default driver class name and URL protocol used by Dynamic Query, the Java runtime environment fails to locate the driver, if <cognos\drivers> does not include a copy of the supported driver (dremio-jdbc-driver-version.jar).
Document Location
Worldwide
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Document Information
Modified date:
15 January 2026
UID
ibm16853443