fix

src/main/java/cn/com/qmth/examcloud/web/helpers/SequenceLockHelper.java

@@ -130,7 +130,7 @@ public class SequenceLockHelper {
      */
     public static void releaseLockSimple(Object... args) {
         String key = LOCK_PREFIX + StringUtils.join(Arrays.asList(args), "_");
-        getRedisClient().expire((String) key, 100, TimeUnit.MILLISECONDS);
+        getRedisClient().delete(key);
     }
 
 }