转载 ORA-02049: 超时: 分布式事务处理等待锁
解决：

查询是否有锁

select t2.username,t2.sid,t2.serial#,t2.logon_time
from v$locked_object t1,v$session t2
where t1.session_id=t2.sid order by t2.logon_time;



关闭查到的用户进程

alter system kill session 't2.sid,t2.serial';

例如:
alter system kill session '131,3432';