Could not open Hibernate Session for transaction; nested exception is org.hibernate.TransactionExcep

Linux下mysql修改鏈接超時wait_timeout

 

1,首先：

show variables like '%timeout%'；

 

顯示結果：

 

+-----------------------------+----------+

| Variable_name               | Value    |

+-----------------------------+----------+

| connect_timeout             | 10       |

| delayed_insert_timeout      | 300      |

| innodb_flush_log_at_timeout | 1        |

| innodb_lock_wait_timeout    | 50       |

| innodb_rollback_on_timeout  | OFF      |

| interactive_timeout         | 28800    |

| lock_wait_timeout           | 31536000 |

| net_read_timeout            | 30       |

| net_write_timeout           | 60       |

| rpl_stop_slave_timeout      | 31536000 |

| slave_net_timeout           | 3600     |

| wait_timeout                | 28800    |

+-----------------------------+----------+

12 rows in set (0.00 sec)

 

其中有用的是： interactive_timeout  和wait_timeout  爲28800，默認爲8小時設置；

 

通常線上的環境中mysql中鏈接時間設置爲7天便可；

 

2,其次：

執行命令：       set  interactive_timeout=604800；

 

                  set  wait_timeout=604800；

 

最後：執行​show variables like '%timeout%'；看看執行成功沒有，顯示結果爲：

 

​

+-----------------------------+----------+

| Variable_name               | Value    |

+-----------------------------+----------+

| connect_timeout             | 10       |

| delayed_insert_timeout      | 300      |

| innodb_flush_log_at_timeout | 1        |

| innodb_lock_wait_timeout    | 50       |

| innodb_rollback_on_timeout  | OFF      |

| interactive_timeout         | 604800   |

| lock_wait_timeout           | 31536000 |

| net_read_timeout            | 30       |

| net_write_timeout           | 60       |

| rpl_stop_slave_timeout      | 31536000 |

| slave_net_timeout           | 3600     |

| wait_timeout                | 604800   |

+-----------------------------+----------+

12 rows in set (0.00 sec)

 

代表執行成功了。。。