警告: Having failed to acquire a resource, com.mchange.v2.resourcepool.BasicResourcePool@2e85fbb is interrupting all Threads waiting on a resource to check out. Will try again in response to new client requests. Thu Jun 01 19:10:58 CST 2023 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification. Thu Jun 01 19:10:58 CST 2023 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification. java.sql.SQLException: Connections could not be acquired from the underlying database!
时间: 2024-04-28 13:20:44 浏览: 159
这个警告信息表明,在使用c3p0连接池向MySQL数据库请求连接时,连接池无法获取连接资源,导致所有等待连接的线程都被中断。同时,还出现了一个关于SSL连接的警告。
对于连接池无法获取连接资源的问题,可能有以下几个原因:
1. 数据库连接池资源不足,请检查连接池的配置,确保连接池的最大连接数足够应对高并发的请求。
2. 数据库连接泄漏,请检查应用程序代码,确保连接在使用后及时释放并归还到连接池。
3. 数据库连接超时,请检查连接池的配置,确保连接的最大空闲时间和最大生存时间符合应用程序的需要。
对于SSL连接的警告,建议您配置SSL连接,以提高连接的安全性。具体方法请参考MySQL的文档,或者在JDBC连接字符串中设置useSSL=true并提供服务器证书验证的信任库。
希望这些信息能够帮助您解决问题。
相关问题
com.mchange.v2.resourcepool.BasicResourcePool. Having failed to acquire a resource, com.mchange.v2.resourcepool.BasicResourcePool@61116de9 is interrupting all Threads waiting on a resource to check out. Will try again in response to new client requests.
这是一个关于资源池(Resource Pool)的异常消息。在这个消息中,com.mchange.v2.resourcepool.BasicResourcePool 表示资源池的类名,@61116de9 是资源池的实例标识符。
异常消息表明,在尝试获取资源失败后,资源池正在中断等待资源的所有线程,并计划在有新的客户端请求时再次尝试获取资源。
要解决这个问题,你可以检查资源池的配置和使用情况。可能的原因包括资源池中的资源被耗尽,或者资源无法正确释放导致资源泄漏。你可以尝试调整资源池的最大容量或增加可用资源的数量,以减少竞争和等待时间。此外,确保在使用完资源后正确释放它们,以避免资源泄漏问题。
06-Jul-2023 22:05:29.536 警告 [C3P0PooledConnectionPoolManager[identityToken->2s21pjaxc2c936oo1vhk|1dfe306c]-HelperThread-#0] com.mchange.v2.resourcepool.BasicResourcePool. Having failed to acquire a resource, com.mchange.v2.resourcepool.BasicResourcePool@4568a7b5 is interrupting all Threads waiting on a resource to check out. Will try again in response to new client requests.
根据您提供的信息,这是一个关于C3P0连接池的警告信息。C3P0是一个用于管理数据库连接的Java库。警告表明连接池在尝试获取数据库连接时失败,并且正在中断所有等待连接的线程。连接池将在收到新的客户端请求时再次尝试获取连接。
这种警告通常表示连接池无法满足当前的连接需求,可能是由于连接池配置不足、数据库服务器负载过高或者其他原因导致的。您可以检查连接池的配置和数据库服务器的状态,以确定问题的根本原因,并采取相应的措施来解决它。
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