Retry

Q: How do I make my Nextflow pipelines more resilient to VM preemption?

Running your pipelines on Preemptible VMs (PVMs) provides significant cost savings, but increases the likelihood that a task will be interrupted before completion. It is a recommended best practice to implement a retry strategy when you encounter exit codes that are commonly related to preemption. Example: 

process {
  errorStrategy = { task.exitStatus in [8,10,14] ? 'retry' : 'finish' }
  maxRetries    = 3
  maxErrors     = '-1'
}