jpa 可以考虑使用较短的maxLifetime值- hikari连接池 Spring Boot

wgxvkvu9 于 2022-11-30 发布在 Spring

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在启动我的SpringBoot应用程序后，在服务器启动的几分钟内出现异常。没有在外部使用任何HikariPool配置，Spring Boot默认使用HikariPool这是我在控制台中遇到的错误：

2020-02-20 03:16:23 - HikariPool-4 - Failed to validate connection 
com.mysql.cj.jdbc.ConnectionImpl@4c4180c8 (No operations allowed after connection closed.). 
Possibly consider using a shorter maxLifetime value.
2020-02-20 03:16:28 - HikariPool-4 - Failed to validate connection 
com.mysql.cj.jdbc.ConnectionImpl@679c2f50 (No operations allowed after connection closed.). 
Possibly consider using a shorter maxLifetime value.
2020-02-20 03:16:33 - HikariPool-4 - Failed to validate connection 
com.mysql.cj.jdbc.ConnectionImpl@16083061 (No operations allowed after connection closed.). 
Possibly consider using a shorter maxLifetime value.
2020-02-20 03:16:38 - HikariPool-4 - Failed to validate connection 
com.mysql.cj.jdbc.ConnectionImpl@4fcaf421 (No operations allowed after connection closed.). 
Possibly consider using a shorter maxLifetime value.
2020-02-20 03:16:43 - HikariPool-4 - Failed to validate connection 
com.mysql.cj.jdbc.ConnectionImpl@33df5d54 (No operations allowed after connection closed.). 
Possibly consider using a shorter maxLifetime value.
2020-02-20 03:16:48 - HikariPool-4 - Failed to validate connection 
com.mysql.cj.jdbc.ConnectionImpl@373d288c (No operations allowed after connection closed.). 
Possibly consider using a shorter maxLifetime value.
2020-02-20 03:16:48 - SQL Error: 0, SQLState: 08003
2020-02-20 03:16:48 - HikariPool-4 - Connection is not available, request timed out after 
30156ms.
2020-02-20 03:16:48 - No operations allowed after connection closed.
2020-02-20 03:16:48 - Servlet.service() for servlet [dispatcherServlet] in context with path 
[] threw exception [Request processing failed; nested exception is 
org.springframework.dao.DataAccessResourceFailureException: Unable to acquire JDBC 
Connection; nested exception is org.hibernate.exception.JDBCConnectionException: Unable to 
acquire JDBC Connection] with root cause

jpa

来源：https://stackoverflow.com/questions/60310858/possibly-consider-using-a-shorter-maxlifetime-value-hikari-connection-pool-spr

3条答案

按热度按时间

cld4siwp1#

问题是spring.datasource.hikari.maxLifetime属性的默认值（默认值为30分钟，https：//github.com/brettwooldridge/HikariCP#gear-configuration-knobs-baby）高于数据库的wait_timeout，在我的例子中是10分钟。
因此，您有两个选择：将hikari.maxLifetime减少到10分钟以下，或者增加数据库的wait_timeout属性。

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92vpleto2#

您可以在application.properties文件中设置如下值

spring.datasource.hikari.maxLifeTime : 600000 #10 minutes wait time

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mf98qq943#

在我的例子中，我通过这种设置解决了问题

@Configuration
public class HikariSetting{

    @Bean
    public HikariConfig config() {
        HikariConfig hikariConfig = new HikariConfig();
        
        // other setting
        
        hikariConfig.addDataSourceProperty("socketTimeout", 600000);
        hikariConfig.setMaxLifetime(600000);
        
        return hikariConfig;
    }
    
}

引用此

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jpa 可以考虑使用较短的maxLifetime值- hikari连接池 Spring Boot

3条答案

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