Issue
Jobs stay on the Build queue when there are dedicated agents with free executors.
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NOTE: This KB article is not applied for shared agents leased from CJOC.
Environment
Resolution
There are multiple causes which might produce this issue, but if you want to diagnosis this issue you might want to try running in /script:
for (i in Jenkins.instance.queue.buildableItems) { println "considering ${i}" for (c in Jenkins.instance.computers) { println "found computer ${c}" EXEC: for (e in c.executors) { if (e.interrupted || !e.parking) continue println "with executor ${e}" def o = new Queue.JobOffer(e) if (!o.canTake(i)) { println "${o} refused ${i}" def node = o.node if (node == null) { println "no node associated with ${c}" continue } def cob = node.canTake(i) if (cob != null) { println "because of ${cob}" continue } for (d in hudson.model.queue.QueueTaskDispatcher.all()) { cob = d.canTake(node, i) if (cob != null) { println "because of ${cob} from ${d}" continue EXEC } } if (!o.available) { println "${o} not available" if (o.workUnit != null) println "has a workUnit ${o.workUnit}" if (c.offline) println "${c} is offline" if (!c.acceptingTasks) println "${c} is not accepting tasks" } } } } }
This script was proposed in JENKINS-38514 |
Known causes
Misconfiguration in Authorize Project
In one reported case, the root issue was that the Authorize Project plugin was configured, so Node.canTake
was returning anonymous doesn’t have a permission to run on [sic]; yet the build queue (and support bundle) displayed only Waiting for next available executor.

considering hudson.model.Queue$BuildableItem:hudson.model.FreeStyleProject@1878318e[test-a]:1 found computer hudson.model.Hudson$MasterComputer@e9bc860 with executor Thread[Executor #0 for master,5,main] JobOffer[ #0] refused hudson.model.Queue$BuildableItem:hudson.model.FreeStyleProject@1878318e[test-a]:1 because of anonymous doesn’t have a permission to run on with executor Thread[Executor #1 for master,5,main] JobOffer[ #1] refused hudson.model.Queue$BuildableItem:hudson.model.FreeStyleProject@1878318e[test-a]:1 because of anonymous doesn’t have a permission to run on