A global debug mode like --debug-all-channels to help debug pipelines other people have written without modifying the pipeline code | Voters

A global debug mode like --debug-all-channels to help debug pipelines other people have written without modifying the pipeline code

acknowledged

Jasper Trout

Currently it seems you need to append the

.dump()

operator to each channel you're interested in debugging, but this means debugging pipelines you've pulled in requires you chase down every channel in the source and append

.dump

to it to find the cause of the problem

December 11, 2025

Rob Newman

Hi Jasper Trout and thanks for your feature request. Have you looked at using data lineage instead? It provides comprehensive tracking of workflow runs, task executions, and output files, and helps you verify the integrity and reproducibility of your pipeline results by maintaining a complete history of computations and intermediate data. It does require Nextflow

v25.04

Rob Newman

marked this post as

acknowledged