org.apache.ibatis.exceptions.PersistenceException: ### Error opening session. Cause: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The driver was unable to create a connection due to an inability to establish the client portion of a socket. This is usually caused by a limit on the number of sockets imposed by the operating system. This limit is usually configurable. For Unix-based platforms, see the manual page for the 'ulimit' command. Kernel or system reconfiguration may also be required. For Windows-based platforms, see Microsoft Knowledge Base Article 196271 (Q196271). ### Cause: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The driver was unable to create a connection due to an inability to establish the client portion of a socket. This is usually caused by a limit on the number of sockets imposed by the operating system. This limit is usually configurable. For Unix-based platforms, see the manual page for the 'ulimit' command. Kernel or system reconfiguration may also be required. For Windows-based platforms, see Microsoft Knowledge Base Article 196271 (Q196271). at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:8) at org.apache.ibatis.session.defaults.DefaultSqlSessionFactory.openSessionFromDataSource(DefaultSqlSessionFactory.java:81) at org.apache.ibatis.session.defaults.DefaultSqlSessionFactory.openSession(DefaultSqlSessionFactory.java:32) at feg.mybatis.VehicleDAO.getVehicle(VehicleDAO.java:23) at feg.mybatis.MyBatisServlet.getVehicle(MyBatisServlet.java:462) at feg.FindServlet.sbsSelect(FindServlet.java:1318) at feg.FindServlet.processRequest(FindServlet.java:1442) at feg.FindServlet.doGet(FindServlet.java:72) at javax.servlet.http.HttpServlet.service(HttpServlet.java:489) at javax.servlet.http.HttpServlet.service(HttpServlet.java:583) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:212) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:156) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:181) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:156) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:168) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:483) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:130) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:346) at org.apache.coyote.ajp.AjpProcessor.service(AjpProcessor.java:535) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:934) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1698) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:63) at java.lang.Thread.run(Thread.java:748) Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The driver was unable to create a connection due to an inability to establish the client portion of a socket. This is usually caused by a limit on the number of sockets imposed by the operating system. This limit is usually configurable. For Unix-based platforms, see the manual page for the 'ulimit' command. Kernel or system reconfiguration may also be required. For Windows-based platforms, see Microsoft Knowledge Base Article 196271 (Q196271). at sun.reflect.GeneratedConstructorAccessor157.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at com.mysql.jdbc.Util.handleNewInstance(Util.java:407) at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1116) at com.mysql.jdbc.MysqlIO.(MysqlIO.java:343) at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2334) at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2371) at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2163) at com.mysql.jdbc.ConnectionImpl.(ConnectionImpl.java:794) at com.mysql.jdbc.JDBC4Connection.(JDBC4Connection.java:47) at sun.reflect.GeneratedConstructorAccessor104.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at com.mysql.jdbc.Util.handleNewInstance(Util.java:407) at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:378) at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:305) at java.sql.DriverManager.getConnection(DriverManager.java:664) at java.sql.DriverManager.getConnection(DriverManager.java:247) at org.apache.ibatis.datasource.unpooled.UnpooledDataSource.getConnection(UnpooledDataSource.java:64) at org.apache.ibatis.datasource.pooled.PooledDataSource.popConnection(PooledDataSource.java:349) at org.apache.ibatis.datasource.pooled.PooledDataSource.getConnection(PooledDataSource.java:55) at org.apache.ibatis.session.defaults.DefaultSqlSessionFactory.openSessionFromDataSource(DefaultSqlSessionFactory.java:72) ... 29 more Caused by: java.net.BindException: Address already in use: connect at java.net.DualStackPlainSocketImpl.connect0(Native Method) at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79) at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:589) at java.net.Socket.connect(Socket.java:538) at java.net.Socket.(Socket.java:434) at java.net.Socket.(Socket.java:244) at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:254) at com.mysql.jdbc.MysqlIO.(MysqlIO.java:292) ... 46 more Error Message

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