diff --git a/src/main/java/cws/k8s/scheduler/model/State.java b/src/main/java/cws/k8s/scheduler/model/State.java
index 4c7430e..f22f395 100644
--- a/src/main/java/cws/k8s/scheduler/model/State.java
+++ b/src/main/java/cws/k8s/scheduler/model/State.java
@@ -2,6 +2,13 @@
 
 public enum State {
 
-    RECEIVED_CONFIG, UNSCHEDULED, SCHEDULED, PREPARED, ERROR, PROCESSING_FINISHED, FINISHED, FINISHED_WITH_ERROR, INIT_WITH_ERRORS, DELETED
+    RECEIVED_CONFIG(0), UNSCHEDULED(1), SCHEDULED(2), PREPARED(3), INIT_WITH_ERRORS(3), PROCESSING_FINISHED(4),
+    FINISHED(5), FINISHED_WITH_ERROR(5), ERROR(1000), DELETED(Integer.MAX_VALUE);
+
+    public final int level;
+
+    State(int level) {
+        this.level = level;
+    }
 
 }
diff --git a/src/main/java/cws/k8s/scheduler/scheduler/Scheduler.java b/src/main/java/cws/k8s/scheduler/scheduler/Scheduler.java
index 707d359..f792d92 100644
--- a/src/main/java/cws/k8s/scheduler/scheduler/Scheduler.java
+++ b/src/main/java/cws/k8s/scheduler/scheduler/Scheduler.java
@@ -398,14 +398,16 @@ public void endBatch( int tasksInBatch ){
     /**
      * @return returns the task, if the state was changed
      */
-    Task changeStateOfTask(Pod pod, State state){
-        Task t = getTaskByPod( pod );
-        if( t != null ){
-            synchronized ( t.getState() ){
-                if( t.getState().getState() != state ){
-                    t.getState().setState( state );
+    Task changeStateOfTask(Pod pod, State state) {
+        Task t = getTaskByPod(pod);
+        if (t != null) {
+            synchronized (t.getState()) {
+                if (t.getState().getState().level < state.level) {
+                    t.getState().setState(state);
                     return t;
                 } else {
+                    log.debug("Task {} was already in state {} and cannot be changed to {}", t.getConfig().getRunName(),
+                            t.getState().getState(), state);
                     return null;
                 }
             }