AliceO2Group · knopers8 · Oct 16, 2025 · Sep 18, 2025
@@ -1176,6 +1176,15 @@ func (env *Environment) QueryRoles(pathSpec string) (rs []workflow.Role) {
 	return
 }

+func (env *Environment) GetId() uid.ID {
+	if env == nil {
+		return ""
+	}
+	env.Mu.RLock()
+	defer env.Mu.RUnlock()
+	return env.id
+}
+
 func (env *Environment) GetPath() string {
 	return ""
 }
@@ -1222,7 +1231,12 @@ func (env *Environment) subscribeToWfState(taskman *task.Manager) {
 								log.WithField("partition", env.id).
 									WithField("level", infologger.IL_Ops).
 									Error("one of the critical tasks went into ERROR state, transitioning the environment into ERROR")
+
+								the.EventWriterWithTopic(topic.Environment).WriteEvent(
+									NewEnvGoErrorEvent(env, newCriticalTasksErrorMessage(env)),
+								)
 								err := env.TryTransition(NewGoErrorTransition(taskman))
+
 								if err != nil {
 									if env.Sm.Current() == "ERROR" {
 										log.WithField("partition", env.id).
@@ -1471,6 +1485,11 @@ func (env *Environment) scheduleAutoStopTransition() (scheduled bool, expected t
 						log.WithField("partition", env.id).
 							WithField("run", env.currentRunNumber).
 							Errorf("Scheduled auto stop transition failed: %s, Transitioning into ERROR", err.Error())
+
+						the.EventWriterWithTopic(topic.Environment).WriteEvent(
+							NewEnvGoErrorEvent(env, fmt.Sprintf("scheduled auto stop transition failed: %s", err.Error())),
+						)
+
 						err = env.TryTransition(NewGoErrorTransition(ManagerInstance().taskman))
 						if err != nil {
 							log.WithField("partition", env.id).

@@ -488,6 +488,9 @@ func (envs *Manager) CreateEnvironment(workflowPath string, userVars map[string]
 						WithError(err).
 						Warnf("auto-transitioning environment failed %s, cleanup in progress", op)

+					the.EventWriterWithTopic(topic.Environment).WriteEvent(
+						NewEnvGoErrorEvent(env, fmt.Sprintf("%s failed: %v", op, err)),
+					)
 					err := env.TryTransition(NewGoErrorTransition(
 						envs.taskman),
 					)
@@ -592,6 +595,9 @@ func (envs *Manager) CreateEnvironment(workflowPath string, userVars map[string]
 		WithField("level", infologger.IL_Devel).
 		Error("environment deployment and configuration error, cleanup in progress")

+	the.EventWriterWithTopic(topic.Environment).WriteEvent(
+		NewEnvGoErrorEvent(env, fmt.Sprintf("deployment or configuration failed: %v", err)),
+	)
 	errTxErr := env.TryTransition(NewGoErrorTransition(
 		envs.taskman),
 	)
@@ -1052,6 +1058,9 @@ func (envs *Manager) handleIntegratedServiceEvent(evt event.IntegratedServiceEve
 						}

 						if env.CurrentState() != "ERROR" {
+							the.EventWriterWithTopic(topic.Environment).WriteEvent(
+								NewEnvGoErrorEvent(env, "ODC partition went to ERROR during RUNNING"),
+							)
 							err = env.TryTransition(NewGoErrorTransition(envs.taskman))
 							if err != nil {
 								log.WithPrefix("scheduler").
@@ -1376,6 +1385,9 @@ func (envs *Manager) CreateAutoEnvironment(workflowPath string, userVars map[str
 			WithError(err).
 			Warnf("auto-transitioning environment failed %s, cleanup in progress", op)

+		the.EventWriterWithTopic(topic.Environment).WriteEvent(
+			NewEnvGoErrorEvent(env, fmt.Sprintf("%s failed: %v", op, err)),
+		)
 		err := env.TryTransition(NewGoErrorTransition(
 			envs.taskman),
 		)

@@ -29,6 +29,10 @@ import (
 	"encoding/json"
 	"fmt"
 	"github.com/AliceO2Group/Control/common/logger/infologger"
+	pb "github.com/AliceO2Group/Control/common/protos"
+	"github.com/AliceO2Group/Control/core/task"
+	"github.com/AliceO2Group/Control/core/task/sm"
+	"github.com/AliceO2Group/Control/core/workflow"
 	"os"
 	"sort"

@@ -101,3 +105,37 @@ func sortMapToString(m map[string]string) string {
 	}
 	return b.String()
 }
+
+func NewEnvGoErrorEvent(env *Environment, err string) *pb.Ev_EnvironmentEvent {
+	return &pb.Ev_EnvironmentEvent{
+		EnvironmentId:        env.GetId().String(),
+		State:                env.Sm.Current(),
+		RunNumber:            env.GetCurrentRunNumber(),
+		Error:                err,
+		Message:              "a critical error occurred, GO_ERROR transition imminent",
+		LastRequestUser:      env.GetLastRequestUser(),
+		WorkflowTemplateInfo: env.GetWorkflowInfo(),
+	}
+}
+
+func newCriticalTasksErrorMessage(env *Environment) string {
+	criticalTasksInError := env.workflow.GetTasks().Filtered(func(t *task.Task) bool {
+		return t.GetTraits().Critical && t.GetState() == sm.ERROR
+	})
+
+	if len(criticalTasksInError) == 0 {
+		return "no critical tasks in ERROR"
+	} else if len(criticalTasksInError) == 1 {
+		t := criticalTasksInError[0]
+		name := t.GetName()
+
+		// if available, we prefer role name, because it does not have a long hash for JIT-generated DPL tasks
+		role, ok := t.GetParentRole().(workflow.Role)
+		if ok {
+			name = role.GetName()
+		}
+		return fmt.Sprintf("critical task '%s' on host '%s' transitioned to ERROR", name, t.GetHostname())
+	} else {
+		return fmt.Sprintf("%d critical tasks transitioned to ERROR, could not determine the first one to fail", len(criticalTasksInError))
+	}
+}
@@ -28,6 +28,7 @@ package core

 import (
 	"encoding/json"
+	"fmt"
 	"maps"
 	"runtime"
 	"sort"
@@ -646,6 +647,9 @@ func (m *RpcServer) ControlEnvironment(cxt context.Context, req *pb.ControlEnvir
 			WithField("level", infologger.IL_Ops).
 			WithError(err).
 			Errorf("transition '%s' failed, transitioning into ERROR.", req.GetType().String())
+		the.EventWriterWithTopic(topic.Environment).WriteEvent(
+			environment.NewEnvGoErrorEvent(env, fmt.Sprintf("transition %s failed: %v", req.GetType().String(), err)),
+		)
 		err = env.TryTransition(environment.NewGoErrorTransition(m.state.taskman))
 		if err != nil {
 			log.WithField("partition", env.Id()).Warnf("could not complete requested GO_ERROR transition, forcing move to ERROR: %s", err.Error())

@@ -151,6 +151,13 @@ func (t *Task) SetSafeToStop(done bool) {
 	t.safeToStop = done
 }

+func (t *Task) GetState() sm.State {
+	t.mu.Lock()
+	defer t.mu.Unlock()
+
+	return t.state
+}
+
 func (t *Task) GetParentRole() interface{} {
 	t.mu.RLock()
 	defer t.mu.RUnlock()