[Fix](job)Fix CAS competition failure leading to message publishing failure.

fe/fe-core/src/main/java/org/apache/doris/job/disruptor/TaskDisruptor.java

@@ -74,7 +74,16 @@ public void start() {
     public boolean publishEvent(Object... args) {
         try {
             RingBuffer<T> ringBuffer = disruptor.getRingBuffer();
-            return ringBuffer.tryPublishEvent(eventTranslator, args);
+            // Check if the RingBuffer has enough capacity to reserve 10 slots for tasks
+            // If there is insufficient capacity (less than 10 slots available)
+            // log a warning and drop the current task
+            if (!ringBuffer.hasAvailableCapacity(10)) {
+                LOG.warn("ring buffer has no available capacity,task will be dropped,"
+                        + "please check the task queue size.");
+                return false;
+            }
+            ringBuffer.publishEvent(eventTranslator, args);
+            return true;
         } catch (Exception e) {
             LOG.warn("Failed to publish event", e);
             // Handle the exception, e.g., retry or alert

fe/fe-core/src/main/java/org/apache/doris/job/scheduler/JobScheduler.java

@@ -168,7 +168,9 @@ public void schedulerInstantJob(T job, TaskType taskType, C context) throws JobE
         for (AbstractTask task : tasks) {
             if (!taskDisruptorGroupManager.dispatchInstantTask(task, job.getJobType(),
                     job.getJobConfig())) {
-                throw new JobException(job.formatMsgWhenExecuteQueueFull(task.getTaskId()));
+                String errorMsg = job.formatMsgWhenExecuteQueueFull(task.getTaskId());
+                task.onFail(errorMsg);
+                throw new JobException(errorMsg);
 
             }
             log.info("dispatch instant job, job id is {}, job name is {}, task id is {}", job.getJobId(),