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ORA-24401: cannot open further connections ORACLE 报错 故障修复 远程处理

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ORA-24401: cannot open further connections ORACLE 报错 故障修复 远程处理

文档解释

ORA-24401: cannot open further connections

Cause: Sufficient number of connections are not present in the pool to execute the call. No new connections can be opened as the connMax parameter supplied in OCIConnectionPoolCreate has been reached.

Action: Call OCIConnectionPoolCreate in OCI_CPOOL_REINITIALIZE mode and increase the value of the connMax parameter.

ORA-24401: cannot open further connections 这个错误表示无法再开启更多的连接。

官方解释

ORA-24401: cannot open further connections 表示由于已达到最大连接数(由参数processes指定),不能再建立连接。

常见案例

由于开启大量并发连接,导致系统提示ORA-24401: cannot open further connections。

一般处理方法及步骤

1. 首先将SQL Developer等客户端连接关闭,释放连接数资源;

2. 检查数据库参数“processes”,是否设置过低,若为100,则将其调整为合理大小,比如500;

3. 检查工作表中的连接,判断连接是否超时,并进行清理;

4. 将参数”sessions”调整到较高的值;

5. 将参数”transaction”调整到较高的值;

6. 检查表空间大小,若接近上限,可适当调整表空间大小。

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ORA-24401: cannot open further connections ORACLE 报错 故障修复 远程处理

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