Java到DB连接异常

Question

我们正在开发Web应用程序我们的tomcat服务器和mysql服务器在两个不同的服务器上运行，我们收到了错误

org.hibernate.TransactionException: JDBC begin transaction failed: 

com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 86,402,200 milliseconds ago.

java.net.SocketException: Broken pipe

org.hibernate.exception.JDBCConnectionException: 

需要帮助来解决问题

尝试过这些链接中的解决方案

Hibernate Session Could not open for transaction

First Login: HTTP Status 500 - Request processing failed; nested exception is org.springframework.transaction.CannotCreateTransactionException

com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

com.mysql.jdbc.exceptions.jdbc4.CommunicationsException:

Answer 1

实际上项目非常大并且多线程正在运行我们得到了这个错误，因为我们超过了我们案例300中mysql服务器可以处理的最大连接数。