ORA-25507 资源管理器未持续开启怎么修复?远程处理该怎么做?
ORA-25507 错误表明数据库资源管理器未自实例启动以来持续激活。修复方法是设置 resource_manager_plan 参数为有效计划(如 SYSTEM_PLAN),并重启数据库实例使配置生效。远程处理可通过网络连接到数据库实例,执行 SQL 命令修改参数并重启,或使用云平台控制台进行实例重启操作。确保重启后资源管理器状态正常,再执行静默命令。操作前需确保拥有 DBA 权限,并通过安全的网络通道连接,避免中断现有业务连接,建议在维护窗口期进行重启操作以最小化影响。
ORA-25507 错误 没有使资源管理器…_255727:com-CSDN 博客
本文介绍了解决在执行 ALTER SYSTEM QUIESCE RESTRICTED 时遇到的 ORA-25507 错误的方法。要成功执行此命令,必须确保资源管理器功能已激活,并且从实例启动以来一直保持激活状态。文章还提供了设置资源计划和重启数据库的具体步骤。在执行 alter system quiesce restricted 将数据库置于静默模式时,报 ORA-25507 错误。SQL> alter system quiesce restricted; alter system quiesce restricted * ERROR at line 1: ORA-25507: resource manager has not been continuously on <
Oracle Database Administrator's Guide - Quiesscing a Database
To quiesce the database, you must have the Database Resource Manager feature activated, and it must have been activated since instance startup. This requirement ensures that the resource manager can control session activity effectively. When the database is in a quiesced state, only users with the RESTRICTED SESSION privilege can perform actions. Non-DBA sessions are prevented from becoming active. If you attempt to issue the ALTER SYSTEM QUIESCE RESTRICTED statement without the resource manager being continuously on, you will encounter ORA-25507. To resolve this, set the RESOURCE_MANAGER_PLAN initialization parameter to a valid plan name in the server parameter file (SPFILE) and restart the database instance. This ensures the resource manager is active from the moment the instance starts. Remote administration can be performed using SQL*Plus over a network connection, provided the listener is configured correctly and the user has sufficient privileges to alter system parameters and restart the instance. Ensure that any active transactions are committed or rolled back before restarting.
ORA-25507: Resource Manager Has Not Been Continuously On - Oracle Support
ORA-25507 occurs when the ALTER SYSTEM QUIESCE RESTRICTED command is issued but the Database Resource Manager was not enabled at instance startup. The Database Resource Manager is essential for managing resources and controlling session states during quiesce operations. Without it, the database cannot guarantee that non-DBA sessions will be prevented from becoming active. The solution involves modifying the initialization parameters. Specifically, you need to set RESOURCE_MANAGER_PLAN to a valid plan (e.g., DEFAULT_PLAN or SYSTEM_PLAN) using ALTER SYSTEM SET RESOURCE_MANAGER_PLAN='plan_name' SCOPE=SPFILE. After setting this parameter, a database restart is mandatory for the change to take effect from startup. For remote processing, connect to the database using a privileged account via a secure network channel. Execute the parameter change, shutdown the database immediately, and startup again. Verify the resource manager status via V$INSTANCE or related views before attempting to quiesce the database again. This process ensures compliance with the resource manager activation requirements.
FAQ
问:为什么会出现 ORA-25507 错误?
答:因为资源管理器未在实例启动时激活,导致无法执行静默命令。
问:修复该错误需要重启数据库吗?
答:是的,需要重启数据库实例以使资源管理器参数从启动开始生效。
问:远程如何处理该问题?
答:通过 SQLPlus 远程连接执行参数修改和重启,或使用云平台控制台操作。