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1.关闭分布式事务会在当前出现问题的语句展示报错信息 2.commit的时候默认回滚事务 3.出现分布式事务问题时候返回有问题的语句方便定位问题
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1.通过日志打印发现buffer重复申请，使用mat工具分析内存 发现有多个线程持有了同一个buffer
可能进行了重复回收导致buffer重复申请
2.修改连接是否为closed状态 必须要等到释放所持有的buffer才可以设置问题是isClosed的标志位
3.cleanup里面清理了buffer 然后定时任务frontendCheck里面也是更具isClosed清理了buffer导致重复回收