Add a missing eval trigger reason

nomad/worker.go

@@ -114,18 +114,21 @@ func (w *Worker) run() {
 
 		// Check for a shutdown
 		if w.srv.IsShutdown() {
+			w.logger.Error("nacking eval because the server is shutting down", "eval", log.Fmt("%#v", eval))
 			w.sendAck(eval.ID, token, false)
 			return
 		}
 
 		// Wait for the raft log to catchup to the evaluation
 		if err := w.waitForIndex(waitIndex, raftSyncLimit); err != nil {
+			w.logger.Error("error waiting for Raft index", "error", err, "index", waitIndex)
 			w.sendAck(eval.ID, token, false)
 			continue
 		}
 
 		// Invoke the scheduler to determine placements
 		if err := w.invokeScheduler(eval, token); err != nil {
+			w.logger.Error("error invoking scheduler", "error", err)
 			w.sendAck(eval.ID, token, false)
 			continue
 		}

scheduler/generic_sched.go

@@ -130,7 +130,8 @@ func (s *GenericScheduler) Process(eval *structs.Evaluation) error {
 		structs.EvalTriggerNodeDrain, structs.EvalTriggerNodeUpdate,
 		structs.EvalTriggerRollingUpdate, structs.EvalTriggerQueuedAllocs,
 		structs.EvalTriggerPeriodicJob, structs.EvalTriggerMaxPlans,
-		structs.EvalTriggerDeploymentWatcher, structs.EvalTriggerRetryFailedAlloc:
+		structs.EvalTriggerDeploymentWatcher, structs.EvalTriggerRetryFailedAlloc,
+		structs.EvalTriggerFailedFollowUp:
 	default:
 		desc := fmt.Sprintf("scheduler cannot handle '%s' evaluation reason",
 			eval.TriggeredBy)

scheduler/system_sched.go

@@ -60,7 +60,7 @@ func (s *SystemScheduler) Process(eval *structs.Evaluation) error {
 
 	// Verify the evaluation trigger reason is understood
 	switch eval.TriggeredBy {
-	case structs.EvalTriggerJobRegister, structs.EvalTriggerNodeUpdate,
+	case structs.EvalTriggerJobRegister, structs.EvalTriggerNodeUpdate, structs.EvalTriggerFailedFollowUp,
 		structs.EvalTriggerJobDeregister, structs.EvalTriggerRollingUpdate,
 		structs.EvalTriggerDeploymentWatcher, structs.EvalTriggerNodeDrain:
 	default: