带有Elastic Beanstalk和Tomcat的AWS RDS - “从服务器成功收到的最后一个数据包是___秒前”

时间：2017-07-30 02:55:16

标签： mysql amazon-web-services tomcat amazon-rds amazon-elastic-beanstalk

感谢您提供的任何见解。我是系统管理的新手，已经陷入了困境。

我有一个使用Amazon Web Services的RDS实例。它正在托管一个MySQL 5.6数据库。我的Elastic Beanstalk应用程序正在运行带有Tomcat 8 / Java 8的Linux服务器。我的Web应用程序使用Hibernate与数据库进行通信。在我的Hibernate.cfg.xml文件中，我已将“autoReconnect = true”添加到我的数据库链接中，但这没有帮助。

有没有人认识到这个错误，并且可以让我知道可能导致它的原因？

type Exception report

message Request processing failed; nested exception is org.hibernate.exception.JDBCConnectionException: could not execute query

description The server encountered an internal error that prevented it from fulfilling this request.

exception

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.hibernate.exception.JDBCConnectionException: could not execute query
    org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:981)
    org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:871)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
    org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:845)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
root cause

org.hibernate.exception.JDBCConnectionException: could not execute query
    org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:99)
    org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
    org.hibernate.loader.Loader.doList(Loader.java:2536)
    org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2276)
    org.hibernate.loader.Loader.list(Loader.java:2271)
    org.hibernate.loader.criteria.CriteriaLoader.list(CriteriaLoader.java:119)
    org.hibernate.impl.SessionImpl.list(SessionImpl.java:1716)
    org.hibernate.impl.CriteriaImpl.list(CriteriaImpl.java:347)
    org.hibernate.impl.CriteriaImpl.uniqueResult(CriteriaImpl.java:369)
    com.grandcircus.spring.util.dao.ChaplainDAO.getByEmail(ChaplainDAO.java:32)
    com.grandcircus.spring.util.dao.DAO.getUserType(DAO.java:68)
    com.grandcircus.spring.controller.HomeController.loginFormSubmit(HomeController.java:89)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    java.lang.reflect.Method.invoke(Method.java:498)
    org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:222)
    org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137)
    org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
    org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:814)
    org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:737)
    org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
    org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959)
    org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
    org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:969)
    org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:871)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
    org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:845)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
root cause

com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was273873 seconds ago.The last packet sent successfully to the server was 273873 seconds ago, which  is longer than the server configured value of 'wait_timeout'. You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem.
    sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
    com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1074)
    com.mysql.jdbc.MysqlIO.send(MysqlIO.java:3246)
    com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1917)
    com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2060)
    com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2542)
    com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1734)
    com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1885)
    org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:208)
    org.hibernate.loader.Loader.getResultSet(Loader.java:1953)
    org.hibernate.loader.Loader.doQuery(Loader.java:802)
    org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:274)
    org.hibernate.loader.Loader.doList(Loader.java:2533)
    org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2276)
    org.hibernate.loader.Loader.list(Loader.java:2271)
    org.hibernate.loader.criteria.CriteriaLoader.list(CriteriaLoader.java:119)
    org.hibernate.impl.SessionImpl.list(SessionImpl.java:1716)
    org.hibernate.impl.CriteriaImpl.list(CriteriaImpl.java:347)
    org.hibernate.impl.CriteriaImpl.uniqueResult(CriteriaImpl.java:369)
    com.grandcircus.spring.util.dao.ChaplainDAO.getByEmail(ChaplainDAO.java:32)
    com.grandcircus.spring.util.dao.DAO.getUserType(DAO.java:68)
    com.grandcircus.spring.controller.HomeController.loginFormSubmit(HomeController.java:89)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    java.lang.reflect.Method.invoke(Method.java:498)
    org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:222)
    org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137)
    org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
    org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:814)
    org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:737)
    org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
    org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959)
    org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
    org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:969)
    org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:871)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
    org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:845)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
root cause

java.net.SocketException: Broken pipe (Write failed)
    java.net.SocketOutputStream.socketWrite0(Native Method)
    java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:111)
    java.net.SocketOutputStream.write(SocketOutputStream.java:155)
    java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82)
    java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140)
    com.mysql.jdbc.MysqlIO.send(MysqlIO.java:3227)
    com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1917)
    com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2060)
    com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2542)
    com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1734)
    com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1885)
    org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:208)
    org.hibernate.loader.Loader.getResultSet(Loader.java:1953)
    org.hibernate.loader.Loader.doQuery(Loader.java:802)
    org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:274)
    org.hibernate.loader.Loader.doList(Loader.java:2533)
    org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2276)
    org.hibernate.loader.Loader.list(Loader.java:2271)
    org.hibernate.loader.criteria.CriteriaLoader.list(CriteriaLoader.java:119)
    org.hibernate.impl.SessionImpl.list(SessionImpl.java:1716)
    org.hibernate.impl.CriteriaImpl.list(CriteriaImpl.java:347)
    org.hibernate.impl.CriteriaImpl.uniqueResult(CriteriaImpl.java:369)
    com.grandcircus.spring.util.dao.ChaplainDAO.getByEmail(ChaplainDAO.java:32)
    com.grandcircus.spring.util.dao.DAO.getUserType(DAO.java:68)
    com.grandcircus.spring.controller.HomeController.loginFormSubmit(HomeController.java:89)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    java.lang.reflect.Method.invoke(Method.java:498)
    org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:222)
    org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137)
    org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
    org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:814)
    org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:737)
    org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
    org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959)
    org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
    org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:969)
    org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:871)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
    org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:845)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

正如迪帕克所说，这是一个连接池问题。我按照我的MKYong提供的关于这个主题的步骤，这纠正了这个问题。在这里阅读更多内容：

https://www.mkyong.com/hibernate/how-to-configure-the-c3p0-connection-pool-in-hibernate/

1 个答案:

答案 0 :(得分：1)

此问题与AWS或RDS或beanstalk无关。这是典型的连接池问题。

确定这是否是游泳池问题;尝试重新启动你的tomcat ..这个问题应该消失。如果是，请尝试谷歌搜索该问题;你会发现很多像How to configure c3p0 in hibernate to auto-refresh stale DB connections

这样的帮助
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