type Exception report
message Request processing failed; nested exception is org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: null, message from server: "Host '83.246.46.17' is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts'"
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.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: null, message from server: "Host '83.246.46.17' is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts'" org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:982) org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861) javax.servlet.http.HttpServlet.service(HttpServlet.java:622) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) javax.servlet.http.HttpServlet.service(HttpServlet.java:729) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
root cause
org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: null, message from server: "Host '83.246.46.17' is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts'" org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:80) org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:630) org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:695) org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:727) org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:737) org.springframework.jdbc.core.JdbcTemplate.queryForObject(JdbcTemplate.java:805) net.kaltfront.gb.GBdao.getEntryByID(GBdao.java:55) net.kaltfront.controller.GbController.editEntryD(GbController.java:51) 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:205) org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133) org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967) org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861) javax.servlet.http.HttpServlet.service(HttpServlet.java:622) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) javax.servlet.http.HttpServlet.service(HttpServlet.java:729) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
root cause
java.sql.SQLException: null, message from server: "Host '83.246.46.17' is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts'" com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1084) com.mysql.jdbc.SQLError.createSQLException(SQLError.java:987) com.mysql.jdbc.SQLError.createSQLException(SQLError.java:973) com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1112) com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2506) com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2539) com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2321) com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:832) com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:46) sun.reflect.GeneratedConstructorAccessor22.newInstance(Unknown Source) sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) java.lang.reflect.Constructor.newInstance(Constructor.java:423) com.mysql.jdbc.Util.handleNewInstance(Util.java:409) com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:417) com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:344) java.sql.DriverManager.getConnection(DriverManager.java:664) java.sql.DriverManager.getConnection(DriverManager.java:208) org.springframework.jdbc.datasource.DriverManagerDataSource.getConnectionFromDriverManager(DriverManagerDataSource.java:153) org.springframework.jdbc.datasource.DriverManagerDataSource.getConnectionFromDriver(DriverManagerDataSource.java:144) org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnectionFromDriver(AbstractDriverBasedDataSource.java:155) org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnection(AbstractDriverBasedDataSource.java:120) org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:111) org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:77) org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:630) org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:695) org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:727) org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:737) org.springframework.jdbc.core.JdbcTemplate.queryForObject(JdbcTemplate.java:805) net.kaltfront.gb.GBdao.getEntryByID(GBdao.java:55) net.kaltfront.controller.GbController.editEntryD(GbController.java:51) 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:205) org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133) org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967) org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861) javax.servlet.http.HttpServlet.service(HttpServlet.java:622) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) javax.servlet.http.HttpServlet.service(HttpServlet.java:729) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
note The full stack trace of the root cause is available in the Apache Tomcat/8.0.28 logs.