ORA-01581: attempt to use rollback segment (string) new extent (string) which is being allocated

文档解释

ORA-01581: attempt to use rollback segment (string) new extent (string) which is being allocated

Cause: Undo generated to extend a rollback segment run out of current undo block space and is attempting to write into the new extent which has not been completely allocated.

Action: The rollback segment extending will be rollbacked by the system, no more extension will be possible untill the next extent is freed up by rolling back or committing other transactions.

ORA-01581是Oracle给出的错误代码，指示尝试使用正在分配的新扩展回滚段。

官方解释

当您试图使用分配给回滚段的新扩展时，会发生ORA-01581的错误。 Oracle尝试使用新的扩展，但这个新的扩展还在分配过程中未完成。

常见案例

该错误通常在尝试从数据库实例中运行大笔工作时发生，而滚动段已完全使用，因此新扩展无法访问。

正常处理方法及步骤

处理ORA-1581的正确方法是先写日志，然后退出当前工作并返回正常的写入循环，等待新的入滚动段分配完成。 再次尝试运行此类型的大笔工作时，错误不应再次发生。