RapidMiner Server - Merge Attributes Error

New Altair Community Member

Mar 26, 2019

Updated Nov 5, 2024 by Jocelyn

I am running a process that includes the 'Merge Attributes' operator which runs fine in Studio but causes the following error when run on the server:

Error in executed process

The 'Merge Attributes' operator in the process executed by 'Execute impact' failed with: The dummy operator Merge Attributes (replacing operator_toolbox:merge) cannot be executed.

Process[1] (Process) subprocess 'Main Process' ==> +- Execute impact[1] (Execute Process)

This error needs to be fixed before the current process can run.

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BalazsBaranyRM

New Altair Community Member

Mar 26, 2019

Merge Attributes is coming from the Operator Toolbox extension. You need to put the extension on the server to be able to use the operator.

Markus

New Altair Community Member

Mar 26, 2019

Thanks. I've added the jar file to the server together with the other already installed extensions. I also restarted the server but the operators are still not showing up. Did I forget to do anything else?

Markus

New Altair Community Member

Mar 26, 2019

Also, the process runs on the server when initialized but not when it is initialized in as a web APP.

kayman

New Altair Community Member

Mar 26, 2019

Did you also add the extension to you job agent folder?

Markus

New Altair Community Member

Mar 26, 2019

Yes, even though the documentation states that the extensions are automatically synchronized. I can run the process via the server repository but not via the initialize process in the web apps section.