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ORA-12042: cannot alter job_queue_processes in single process mode ORACLE 报错 故障修复 远程处理

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ORA-12042: cannot alter job_queue_processes in single process mode ORACLE 报错 故障修复 远程处理

文档解释

ORA-12042: cannot alter job_queue_processes in single process mode

Cause: An attempt was made to alter job_queue_processes in single process mode.

Action: Do not attempt to set job_queue_processes in single process mode.

ORA-12042: cannot alter job_queue_processes in single process mode错误消息指出,在单进程模式下,不能更改job_queue_processes参数。

官方解释

job_queue_processes参数定义可用于处理排队的作业的进程数量。在单进程模式下,框架被禁用,因此无法更改此参数。必须从单进程模式转换为多进程模式才能更改此参数。

常见案例

当在实例的单进程模式下试图更改job_queue_processes参数时,将出现此错误。

正常处理方法及步骤

1.关闭实例,并确保不再重新启动实例。

2.在每个数据库存储区中,将数据库实例设置为多进程模式。

3.重新启动实例。

4.使用以下命令更改job_queue_processes参数:

ALTER SYSTEM SET JOB_QUEUE_PROCESSES= SCOPE=SPFILE;

5.重新启动实例。

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ORA-12042: cannot alter job_queue_processes in single process mode ORACLE 报错 故障修复 远程处理

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