Parallel Chunk Loops

[lars20070]

I am using parallel chunk loops for the parallelisation of our workflows. The workflow terminates with

Execute failed: IURIPortObject with multiple URIs supplied at single URI port #0

What does it mean? How can I fix this?

[Iris]

Hi Lars,

I guess this is not possible with the generic knime nodes.

Best, Iris

[jpfeuffer]

Hi all,

yes. Since the first node in your loop expects only one file, the table going into URI to Port needs to have a single row. I assume that your chunks are not of size 1 then.
Either force them to size 1 or loop inside the parallel loop again.

Cheers
Julianus

[lars20070]

“Add Chuink Index to RowID” in Parallel Chunk End needs to be checked.

Solves the problem. Thanks.