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Error: "Impala Thrift API ExecuteStatement: SSL_error: error code: 0" when connecting to Impala

user

Created/Edited - 4/28/2026 by Tim Randall | Alteryx

Summary

Error experienced with Impala Driver: [Cloudera][ImpalaODBC] (450) Error when calling the Impala Thrift API ExecuteStatement: SSL_read: error code: 0 when attempting to connect. This error is thrown by the DB driver if a connection is taking too long. It is common for it to be experienced intermittently.

Environment

The following error is seen when users run a workflow that contains an Impala DB connection:

Error when calling the Impala Thrift API ExecuteStatement: SSL_read: error code: 0

Alteryx Designer
- Any version
Impala connection and Driver
- Any version

Cause

This error is thrown by the DB driver if a connection is taking too long. It is common for it to be experienced intermittently. Other causes can be due to:

Long-running queries
Network latency

Resolution

Increase the socket timeout in the DSN connection. Advanced settings to allow the connection more time to complete:

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