Fail in execution

Node that fails upon execution. This node is part of the workflow manager test framework. It's used to simulate failing nodes.

Options

Fail at index: If enabled, the node will pass through rows with an index lower than the specified index, then fail at the row with the given index (first row has index 0).
Fail during node configuration: If enabled, the node will fail while the node is being configured, it will never reach the "yellow traffic light" state.
Use rich failure messages: If enabled, failure messages will use the rich message format introduced in KNIME Analytics Platform 5.0, providing structured error details in the failure dialog. Disable this option to ensure compatibility with test workflows created before version 5.0, as the error message format may be part of test assertions.

This node has no views

You want to see the source code for this node? Click the following button and we’ll use our super-powers to find it for you.

To use this node in KNIME, install the extension KNIME Testing Framework UI from the below update site following our NodePit Product and Node Installation Guide:

v5.12

A zipped version of the software site can be downloaded here.

Plugin provider: KNIME AG, Zurich, Switzerland

Plugin version: 5.12.0.v202605041104

On NodePit since: 2026-08-08

Last update: 2026-08-12

Tags: StreamableModern UI

KNIME versions: Since v3.6

Deploy, schedule, execute, and monitor your KNIME workflows locally, in the cloud or on-premises – with our brand new NodePit Runner.