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ORA-02793: Close of asynchronous I/O failed. ORACLE 报错故障修复远程处理

2023-11-05 00:44

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文档解释

ORA-02793: Close of asynchronous I/O failed.

Cause: The client was unable to close a file being used for asynchronous I/O.

Action: Contact ORACLE support – this should not happen.

ORA-02793错误是由ORACLE数据库在关闭异步输入输出时出现的错误。如果出现ORA-02793错误，意味着ORACLE数据库当前正在执行若干异步I/O操作，但是关闭I/O操作失败了。

官方解释

ORA-02793:关闭异步I/O失败。

这通常由操作系统上活动的异步I/O导致，这些I/O正在等待完成，或由于未知的系统原因Oracle无法关闭I/O

常见案例

该错误往往会在关闭数据库时出现，当前数据库会尝试关闭操作系统活动的异步I/O但未能成功，即未能执行I/O。

正常处理方法及步骤

1、使用操作系统工具来检查有哪些异步I/O活动，比如strace或lsof等。

2、如果发现存在活动的I/O，应该使用OS命令来终止这些I/O活动，例如kill –9 PID

3、最后使用平台相关命令重新启动数据库。

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