Fix some metric bugs

Author: JackieTien97

iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/execution/schedule/queue/IndexedBlockingReserveQueue.java

@@ -54,8 +54,7 @@ public synchronized void push(E element) {
     if (element == null) {
       throw new NullPointerException("pushed element is null");
     }
-    Preconditions.checkState(
-        size + reservedSize < capacity, "The system can't allow more query tasks.");
+    Preconditions.checkState(size + reservedSize < capacity, TOO_MANY_CONCURRENT_QUERIES_ERROR_MSG);
     pushToQueue(element);
     size++;
     this.notifyAll();

iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/metric/DriverSchedulerMetricSet.java

@@ -88,16 +88,6 @@ public void bindTo(AbstractMetricService metricService) {
         DriverScheduler::getQueryMapSize,
         Tag.NAME.toString(),
         QUERY_MAP_SIZE);
-    metricService.remove(
-        MetricType.AUTO_GAUGE,
-        Metric.DRIVER_SCHEDULER.toString(),
-        Tag.NAME.toString(),
-        TIMEOUT_QUEUE_SIZE);
-    metricService.remove(
-        MetricType.AUTO_GAUGE,
-        Metric.DRIVER_SCHEDULER.toString(),
-        Tag.NAME.toString(),
-        QUERY_MAP_SIZE);
   }
 
   @Override
@@ -124,6 +114,16 @@ public void unbindFrom(AbstractMetricService metricService) {
         Metric.DRIVER_SCHEDULER.toString(),
         Tag.NAME.toString(),
         BLOCK_QUEUE_TASK_COUNT);
+    metricService.remove(
+        MetricType.AUTO_GAUGE,
+        Metric.DRIVER_SCHEDULER.toString(),
+        Tag.NAME.toString(),
+        TIMEOUT_QUEUE_SIZE);
+    metricService.remove(
+        MetricType.AUTO_GAUGE,
+        Metric.DRIVER_SCHEDULER.toString(),
+        Tag.NAME.toString(),
+        QUERY_MAP_SIZE);
   }
 
   public void recordTaskQueueTime(String name, long queueTimeInNanos) {