Hibernate连接数据库超时设置autoReconnect=true

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Hibernate连接数据库超时设置autoReconnect=true

如果连接闲置8小时 (8小时内没有进行数据库操作), mysql就会自动断开连接, 要重启tomcat. 不用hibernate的话, connection url加参数: autoReconnect=true 用hibernate的话, 加如下属性: <property name="connection.autoReconnect">true</property> <property name="connection.autoReconnect…

连接数据库超时设置autoReconnect=true

1,问题现象: com.mysql.jdbc.CommunicationsException: The last packet successfully received from the server was58129 seconds ago.The last packet sent successfully to the server was 58129 seconds ago, which is longer than the server configured value of 'wai…

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mysql 数据库连接超时的问题 autoReconnect=true

最近在使用spring-jdbc数据库连接管理时,出现一个奇怪问题,当天部署运行没问题,第二天再试就报以下异常问题 org.springframework.dao.RecoverableDataAccessException: PreparedStatementCallback; SQL []; The last packet successfully received from the server was 56,799,849 milliseconds ago. The last packe…

jdbc autoReconnect=true 参数设置导致 slow log 爆表。

1.过程同事按照文档上配置了下面的jdbc url: jdbc:mysql://ip:port/db?autoReconnect=true&useUnicode=true&characterEncoding=utf-8 结果导致了 mysql slow log 出现了满屏的 ping 命令, # User@Host: db[db] @ [ip] # Query_time: 0.000017 Lock_time: 0.000000 Rows_sent: 0 Rows_examined: 0…

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使用springboot 线程池连接MySQL时,mysql数据库wait_timeout 为8个小时,所以程序第二天发现报错,在url配置了 autoReconnect=true 也不行,查询配置以下 #验证连接的有效性 spring.datasource.test-while-idle=true #获取连接时候验证,会影响性能spring.datasource.test-on-borrow=true spring.datasource.validation-query=SELECT 1 FR…

日志：using the Connector/J connection property 'autoReconnect=true' to avoid this problem

com.mysql.jdbc.CommunicationsException: The last packet successfully received from the server was58129 seconds ago.The last packet sent successfully to the server was 58129 seconds ago, which is longer than the server configured value of 'wait_timeou…