ORA-00053: maximum number of enqueues exceeded ORACLE 报错 故障修复 远程处理

ORA-00053: maximum number of enqueues exceeded

Cause: Ran out of enqueue state objects.

Action: Increase the value of the ENQUEUES initialization parameter.

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Error code: ORA-00053

Official English explanation: maximum number of sessions exceeded

Chinese explanation: 超过最大会话数

Common cases:

This error can occur when the number of concurrent user sessions connected to an Oracle database exceeds the maximum number of sessions allowed. The error can also occur when the database has reached the maximum number of parallel execution processes.

Resolution steps:

Determine the current number of user sessions and parallel execution processes by querying the V$SESSION and V$PROCESS views. Check the values for the initialization parameters sessions and parallel_max_servers in the spfile or init.ora file and increase the values if necessary. After making the necessary changes, restart the Oracle database to take effect.

Note: If increasing the values of the initialization parameters does not resolve the error, consider optimizing database performance or increasing system resources such as memory and CPU to handle the increased load.

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