Using ec2-fleet plugin with autoscaling group. Too often, with no slaves running, a job will get scheduled and invoke the ec2-fleet. However, the Jenkins logs show the following traceback, and another instance startup will be started. With this, I'm left with 2 slaves - the one started when the exception was thrown, plus another. Is wasting money. How to avoid triggering this exception? Why is it happening? 2020-01-09 19:21:14.368+0000 [id=34] SEVERE hudson.slaves.NodeProvisioner#lambda$update$6: Unexpected uncaught exception encountered while processing agent FleetNode-0 java.util.concurrent.CancellationException: Task was cancelled. at com.google.common.util.concurrent.AbstractFuture$Sync.getValue(AbstractFuture.java:295) at com.google.common.util.concurrent.AbstractFuture$Sync.get(AbstractFuture.java:276) at com.google.common.util.concurrent.AbstractFuture.get(AbstractFuture.java:111) at hudson.slaves.NodeProvisioner.lambda$update$6(NodeProvisioner.java:236) at hudson.model.Queue._withLock(Queue.java:1392) at hudson.model.Queue.withLock(Queue.java:1269) at hudson.slaves.NodeProvisioner.update(NodeProvisioner.java:223) at hudson.slaves.NodeProvisioner.access$900(NodeProvisioner.java:63) at hudson.slaves.NodeProvisioner$NodeProvisionerInvoker.doRun(NodeProvisioner.java:817) at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:70) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) 2020-01-09 19:21:14.369+0000 [id=34] INFO c.a.j.e.NoDelayProvisionStrategy#apply: currentDemand 2 availableCapacity 0 (availableExecutors 0 connectingExecutors 0 plannedCapacitySnapshot 0 additionalPlannedCapacity 0) |