diff --git a/doc/XXL-JOB官方文档.md b/doc/XXL-JOB官方文档.md
index 23fd6f47..42c15677 100644
--- a/doc/XXL-JOB官方文档.md
+++ b/doc/XXL-JOB官方文档.md
@@ -2698,7 +2698,8 @@ public void execute() {
 - b、本次升级针对客户端rollinglog依赖字段做规范约束，如不关注该功能 v2.4.* 及后续版本客户端不需要升级/可兼容，否则需要升级客户端版本；
 
 ### 7.42 版本 v3.3.1 Release Notes[ING]
-- 1、【TODO】任务调度触发后分批批量更新，提升调度性能；
+- 1、【修复】调度组件事务代码优化，修复DB超时等小概率情况下调度终止问题；
+- 2、【TODO】任务调度触发后分批批量更新，提升调度性能；
 
 
 ### TODO LIST
diff --git a/xxl-job-admin/src/main/java/com/xxl/job/admin/scheduler/thread/JobScheduleHelper.java b/xxl-job-admin/src/main/java/com/xxl/job/admin/scheduler/thread/JobScheduleHelper.java
index de7df79c..e2c93eb6 100644
--- a/xxl-job-admin/src/main/java/com/xxl/job/admin/scheduler/thread/JobScheduleHelper.java
+++ b/xxl-job-admin/src/main/java/com/xxl/job/admin/scheduler/thread/JobScheduleHelper.java
@@ -63,8 +63,9 @@ public class JobScheduleHelper {
                     boolean preReadSuc = true;
 
                     // transaction start
-                    TransactionStatus transactionStatus = XxlJobAdminBootstrap.getInstance().getTransactionManager().getTransaction(new DefaultTransactionDefinition());
+                    TransactionStatus transactionStatus = null;
                     try {
+                        transactionStatus = XxlJobAdminBootstrap.getInstance().getTransactionManager().getTransaction(new DefaultTransactionDefinition());
                         // 1、job lock
                         String lockedRecord = XxlJobAdminBootstrap.getInstance().getXxlJobLockMapper().scheduleLock();
                         long nowTime = System.currentTimeMillis();