liyangbing

Please answer some questions before submitting your issue. Thanks! ### Which version of XXL-JOB do you using? 1.9.2-SNAPSHOT 数据库10.0.20-MariaDB-log 事务提交模式，READ-COMMITTED ### Expected behavior 两个调度协调执行，不会出现重复 ### Actual behavior 任务较多时，同一个任务偶发重复 ### Steps...