ORA-02391: exceeded simultaneous SESSIONS_PER_USER limit ORACLE 报错 故障修复 远程处理
文档解释
ORA-02391: exceeded simultaneous SESSIONS_PER_USER limit
Cause: An attempt was made to exceed the maximum number of concurrent sessions allowed by the SESSION_PER_USER clause of the user profile.
Action: End one or more concurrent sessions or ask the database administrator to increase the SESSION_PER_USER limit of the user profile.
ORA-02391错误表明,用户在特定时间已经超过了数据库中定义的SESSIONS_PER_USER参数。
官方解释
ORA-02391: exceeded simultaneous SESSIONS_PER_USER limit
Cause: a user attempted to log on, but failed because the concurrent session limit for the user has been reached.
Action: Wait for some of the user’s sessions to end, then retry the action.
常见案例
正常处理方法及步骤
1.检查数据库的SESSIONS_PER_USER参数配置,如果是低于实际应用的值,建议增加SESSIONS_PER_USER参数的配置;
2.确保用户的服务没有还没有过期和未被终止,如果存在这样的情况,可以尝试重新启动用户的服务;
3.检查用户的会话状态,如果存在大量的会话处于非活动状态,可以尝试终止或限制连接;
4.根据用户的实际状况,如果没有任何改善,可以尝试将SESSIONS_PER_USER参数关闭,以允许用户再次访问数据库;
5.进行正确的数据库优化,例如调整查询语句,配置更多的表空间、表分区和索引,提高数据库性能,减少数据库的连接数。