+ def dslTriggerModule = """\
+import hudson.model.*
+import hudson.AbortException
+import hudson.console.HyperlinkNote
+import java.util.concurrent.CancellationException
+import java.util.Random
+
+
+Random random = new Random()
+def jobs = hudson.model.Hudson.instance.items
+def fail = false
+def modulePrefix = "MODULEPREFIX"
+def branchName = "BRANCHNAME"
+def kernelPrefix = "KERNELPREFIX"
+def nodeLabels=["kernel"]
+def validNodeDivider = 2
+
+def fullModulePrefix = modulesPrefix + branchName
+
+def toBuild = []
+def counter = 0
+def limitQueue = 4
+
+jobs.each { job ->
+ def jobName = job.getName()
+ if (jobName.startsWith(fullModulePrefix)) {
+ counter = counter + 1
+ toBuild.push(job)
+ }
+}
+
+// Get valid labeled node node
+def validNodeCount = 0
+hudson.model.Hudson.instance.nodes.each { node ->
+ def valid = true
+ nodeLabels.each { label ->
+ if (!node.getLabelString().contains(nodeLabel)){
+ valid = false
+ break;
+ }
+ }
+ if (valid){
+ validNodeCount++
+ }
+}
+
+// Divide the valid node by validNodeDivider based on user defined label slave descriminant ex arck type
+def finalValidNodeCount = validNodeCount.intdiv(validNodeDivider
+
+// Scheduling
+
+def ongoingBuild = []
+def q = jenkins.model.Jenkins.getInstance().getQueue()
+def queuedTaskKernel = 0
+def queuedTaskModule = 0
+def sleep = 0
+
+while (toBuild.size() != 0) {
+ // Throttle the build with both the number of current parent task and queued
+ // task.Look for both kernel and downstream module from previous kernel.
+ queuedTaskKernel = q.getItems().findAll {it.task.getParent().getDisplayName().startsWith(jobStartWithKernel)}.size()
+ queuedTaskModule = q.getItems().findAll {it.task.getParent().getDisplayName().startsWith(jobStartWithModule)}.size()
+ if ((ongoingBuild.size() <= finalValidNodeCount) && (queuedTaskKernel + queuedTaskModule < limitQueue)) {
+ def job = toBuild.pop()
+ ongoingBuild.push(job.scheduleBuild2(0))
+ println "\t trigering " + HyperlinkNote.encodeTo('/' + job.url, job.fullDisplayName)
+ } else {
+ println "Holding trigger"
+ println "Currently " + ongoingBuild.size() + " build ongoing. Max = " + validNodeCount
+ println "Currently " + queuedTaskKernel + " Kernel build ongoing."
+ println "Currently " + queuedTaskModule + " LTTng-modules build ongoing."
+ println "Limit for combination of both:" + limitQueue
+
+ sleep = random.nextInt(60000)
+ println "Sleeping for " + sleep.intdiv(1000) + " seconds"
+ Thread.sleep(sleep)
+ ongoingBuild.removeAll{ it.isCancelled() || it.isDone() }
+ }
+}
+if (fail){
+ throw new AbortException("Some job failed")
+}
+"""
+
+ dslTriggerKernel = dslTriggerKernel.replaceAll("KERNELPREFIX", kernelPrefix)
+ dslTriggerKernel = dslTriggerKernel.replaceAll("MODULEPREFIX", modulesPrefix)