Hello,

I am using Jenkins 2.164.1 and setting up CICD pipeline to run parallel (with sequential) in between. I am running parallel stage by passing list as input ( worked fine). But as list is huge i want to distribute the load to run the stage in chunks but in parallel. I am using collate to get the sub list but the execution happened only on first "a" and "b" and then end. Not sure why this is not working. 

Issue : The parallel execution is working only for 1st sub list returned by .collate()

here is sample code. 

def stepsForParallel = [:]
appBuildList =["a", "b", "c", "d","e","f","g","h","i","j"]

for (sublist in appBuildList.collate(2, true))

{

 sublist.each{  def stepName = "${it}"

stepsForParallel[stepName] = { -> echo "$it" } }

 parallel stepsForParallel 

}