Ignore failing process

Problem

A task is expected to fail in some cases. You want to ignore the failure and continue the execution of the remaining tasks in the workflow.

Solution

Use the process directive errorStrategy 'ignore' to ignore the error condition.

Code

process foo {
  errorStrategy 'ignore'
  script:
  '''
  echo This is going to fail!
  exit 1
  '''
}  

process bar {
  script:
  '''
  echo OK
  '''
}

workflow {
  foo()
  bar()
}

Run it

Run the script with the following command:

nextflow run nextflow-io/patterns/ignore-failing-process.nf