Calling multiple downstream jobs from an upstream Jenkins pipeline job - jenkins

Question

I have two pipeline based jobs
Parent_Job (has string parameters project1 & project2)
#NonCPS
def invokeDeploy(map) {
for (entry in map) {
echo "Starting ${entry.key}"
build job: 'Child_Job', parameters: [
string(name: 'project', value: entry.key),
string(name: 'version', value: entry.value)
], quietPeriod: 2, wait: true
echo "Completed ${entry.key}"
}
}
pipeline {
agent any
stages {
stage('Test') {
steps {
script {
invokeDeploy(params)
}
}
}
}
}
Child_Job (has string parameters project & version)
pipeline {
agent any
stages {
stage('Test') {
steps {
script {
echo "${params.project} --> ${params.version}"
}
}
}
}
}
Parent job output
[Pipeline] {
[Pipeline] stage
[Pipeline] { (Test)
[Pipeline] script
[Pipeline] {
[Pipeline] echo
Starting project2
[Pipeline] build (Building Child_Job)
Scheduling project: Child_Job
Starting building: Child_Job #18
[Pipeline] }
[Pipeline] // script
[Pipeline] }
[Pipeline] // stage
[Pipeline] }
[Pipeline] // node
[Pipeline] End of Pipeline
Finished: SUCCESS
I expected the downstream job to be called twice, (for project1 and project2) but its invoked only once (for project2)
Is there something obviously wrong with this script?

Answer 1

It seems that the problem with wait: true option enabled for build job step. If you change it to wait: false it will execute 2 times. I tried it on this test pipeline:
#NonCPS
def invokeDeploy(map) {
for (entry in map) {
echo "Starting ${entry.key}"
build job: 'pipeline', quietPeriod: 2, wait: false
echo "Completed ${entry.key}"
}
}
pipeline {
agent any
stages {
stage('Test') {
steps {
script {
def sampleMap = [first_job:'First', second_job:'Second']
invokeDeploy(sampleMap)
}
}
}
}
}