I'm trying to set my webapp up on a new server, and running into something I've
never seen before. Google has solutions for people that worked, but none of
them work for me.
The same config on OpenSolaris and OS X work (albeit with different versions of
MySQL and Resin). I'm not sure if this is new with 4.0.18 or not.
I have MySQL and Resin 4.0.18 running on the same host. I have my Java webapp,
and WordPress both installed. Whenever either one tries to access the DB,
access is refused. Each webapp uses its own user/password. I've verified that I
can access MySQL via the mysql command-line client using both sets of
credentials.
WordPress reports this error:
/lz/usr/wordpress/wp-includes/wp-db.php:509: Warning: A link to the server
could not be established.
url=jdbc:mysql://localhost:3306/?characterEncoding=ISO8859_1
driver=com.mysql.jdbc.Driver
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link
failure The last packet sent successfully to the server was 0 milliseconds ago.
The driver has not received any packets from the server. [mysql_error]
MySQL: 5.5.12
Connector/J: 5.1.15
Resin: 4.0.18
OS: 4.4.3-4ubuntu5
My Java app reports "Connection refused" (long stacktrace follows). The MySQL
JDBC connector is in webapp-jars. The config for the Java webapp looks like:
<database>
<jndi-name>jdbc/mydb</jndi-name>
<max-connections>1024</max-connections>
<max-idle-time>30s</max-idle-time>
<driver>
<type>com.mysql.jdbc.jdbc2.optional.MysqlConnectionPoolDataSource</type>
<url>jdbc:mysql://localhost:3306/mydb</url>
<user>mydb</user>
<password>#####</password>
</driver>
</database>
WordPress config:
define('DB_NAME', 'wordpress');
define('DB_USER', 'wordpress');
define('DB_PASSWORD', '####');
define('DB_HOST', 'localhost');
define('DB_CHARSET', 'utf8');
define('DB_COLLATE', '');
Webapp error:
java.net.ConnectException: Connection refused
javax.servlet.ServletException:
org.springframework.transaction.CannotCreateTransactionException:
Could not open Hibernate Session for transaction; nested exception is
org.hibernate.exception.JDBCConnectionException:
Cannot open connection
at
org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:286)
at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:119)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:96)
at
com.caucho.server.dispatch.ServletFilterChain.doFilter(ServletFilterChain.java:109)
at com.latencyzero.satdb.RequestFilter.doFilter(RequestFilter.java:124)
at
com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:89)
at
org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at
com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:89)
at
com.latencyzero.satdb.SecurityFilter.doFilter(SecurityFilter.java:228)
at
com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:89)
at
com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:156)
at
com.caucho.server.webapp.AccessLogFilterChain.doFilter(AccessLogFilterChain.java:95)
at
com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:287)
at
com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:792)
at
com.caucho.network.listen.TcpSocketLink.dispatchRequest(TcpSocketLink.java:730)
at
com.caucho.network.listen.TcpSocketLink.handleRequest(TcpSocketLink.java:689)
at
com.caucho.network.listen.TcpSocketLink.handleRequestsImpl(TcpSocketLink.java:669)
at
com.caucho.network.listen.TcpSocketLink.handleRequests(TcpSocketLink.java:617)
at com.caucho.network.listen.AcceptTask.doTask(AcceptTask.java:104)
at
com.caucho.network.listen.ConnectionReadTask.runThread(ConnectionReadTask.java:98)
at
com.caucho.network.listen.ConnectionReadTask.run(ConnectionReadTask.java:81)
at com.caucho.network.listen.AcceptTask.run(AcceptTask.java:67)
at com.caucho.env.thread.ResinThread.runTasks(ResinThread.java:164)
at com.caucho.env.thread.ResinThread.run(ResinThread.java:130)
Caused by: org.springframework.transaction.CannotCreateTransactionException:
Could not open Hibernate Session for transaction; nested exception is
org.hibernate.exception.JDBCConnectionException:
Cannot open connection
at
org.springframework.orm.hibernate3.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:599)
at
org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:374)
at
org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:263)
at
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:101)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
at $Proxy51.findByLogin(Unknown Source)
at com.latencyzero.satdb.LoginAction.execute(LoginAction.java:70)
at
org.apache.struts.chain.commands.servlet.ExecuteAction.execute(ExecuteAction.java:58)
at
org.apache.struts.chain.commands.AbstractExecuteAction.execute(AbstractExecuteAction.java:67)
at
org.apache.struts.chain.commands.ActionCommandBase.execute(ActionCommandBase.java:51)
at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190)
at
org.apache.commons.chain.generic.LookupCommand.execute(LookupCommand.java:304)
at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190)
at
org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:283)
at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:119)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:96)
at
com.caucho.server.dispatch.ServletFilterChain.doFilter(ServletFilterChain.java:109)
at com.latencyzero.satdb.RequestFilter.doFilter(RequestFilter.java:124)
at
com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:89)
at
org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at
com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:89)
at
com.latencyzero.satdb.SecurityFilter.doFilter(SecurityFilter.java:228)
at
com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:89)
at
com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:156)
at
com.caucho.server.webapp.AccessLogFilterChain.doFilter(AccessLogFilterChain.java:95)
at
com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:287)
at
com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:792)
at
com.caucho.network.listen.TcpSocketLink.dispatchRequest(TcpSocketLink.java:730)
at
com.caucho.network.listen.TcpSocketLink.handleRequest(TcpSocketLink.java:689)
at
com.caucho.network.listen.TcpSocketLink.handleRequestsImpl(TcpSocketLink.java:669)
at
com.caucho.network.listen.TcpSocketLink.handleRequests(TcpSocketLink.java:617)
at com.caucho.network.listen.AcceptTask.doTask(AcceptTask.java:104)
at
com.caucho.network.listen.ConnectionReadTask.runThread(ConnectionReadTask.java:98)
at
com.caucho.network.listen.ConnectionReadTask.run(ConnectionReadTask.java:81)
at com.caucho.network.listen.AcceptTask.run(AcceptTask.java:67)
at com.caucho.env.thread.ResinThread.runTasks(ResinThread.java:164)
at com.caucho.env.thread.ResinThread.run(ResinThread.java:130)
Caused by: org.hibernate.exception.JDBCConnectionException: Cannot open
connection
at
org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:74)
at
org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
at
org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:29)
at
org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:420)
at
org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:144)
at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:119)
at
org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:57)
at
org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1326)
at
org.springframework.orm.hibernate3.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:558)
at
org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:374)
at
org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:263)
at
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:101)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
at $Proxy51.findByLogin(Unknown Source)
at com.latencyzero.satdb.LoginAction.execute(LoginAction.java:70)
at
org.apache.struts.chain.commands.servlet.ExecuteAction.execute(ExecuteAction.java:58)
at
org.apache.struts.chain.commands.AbstractExecuteAction.execute(AbstractExecuteAction.java:67)
at
org.apache.struts.chain.commands.ActionCommandBase.execute(ActionCommandBase.java:51)
at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190)
at
org.apache.commons.chain.generic.LookupCommand.execute(LookupCommand.java:304)
at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190)
at
org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:283)
at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:119)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:96)
at
com.caucho.server.dispatch.ServletFilterChain.doFilter(ServletFilterChain.java:109)
at com.latencyzero.satdb.RequestFilter.doFilter(RequestFilter.java:124)
at
com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:89)
at
org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at
com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:89)
at
com.latencyzero.satdb.SecurityFilter.doFilter(SecurityFilter.java:228)
at
com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:89)
at
com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:156)
at
com.caucho.server.webapp.AccessLogFilterChain.doFilter(AccessLogFilterChain.java:95)
at
com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:287)
at
com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:792)
at
com.caucho.network.listen.TcpSocketLink.dispatchRequest(TcpSocketLink.java:730)
at
com.caucho.network.listen.TcpSocketLink.handleRequest(TcpSocketLink.java:689)
at
com.caucho.network.listen.TcpSocketLink.handleRequestsImpl(TcpSocketLink.java:669)
at
com.caucho.network.listen.TcpSocketLink.handleRequests(TcpSocketLink.java:617)
at com.caucho.network.listen.AcceptTask.doTask(AcceptTask.java:104)
at
com.caucho.network.listen.ConnectionReadTask.runThread(ConnectionReadTask.java:98)
at
com.caucho.network.listen.ConnectionReadTask.run(ConnectionReadTask.java:81)
at com.caucho.network.listen.AcceptTask.run(AcceptTask.java:67)
at com.caucho.env.thread.ResinThread.runTasks(ResinThread.java:164)
at com.caucho.env.thread.ResinThread.run(ResinThread.java:130)
Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException:
Communications
link failure
The last packet sent successfully to the server was 0 milliseconds ago.
The driver has not received any packets from the server.
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:407)
at
com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1116)
at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:346)
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.<init>(ConnectionImpl.java:794)
at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
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
com.mysql.jdbc.jdbc2.optional.MysqlDataSource.getConnection(MysqlDataSource.java:440)
at
com.mysql.jdbc.jdbc2.optional.MysqlDataSource.getConnection(MysqlDataSource.java:138)
at
com.mysql.jdbc.jdbc2.optional.MysqlConnectionPoolDataSource.getPooledConnection(MysqlConnectionPoolDataSource.java:80)
at
com.caucho.sql.DriverConfig.createPooledConnection(DriverConfig.java:651)
at
com.caucho.sql.ManagedConnectionImpl.initDriverConnection(ManagedConnectionImpl.java:265)
at
com.caucho.sql.ManagedConnectionImpl.<init>(ManagedConnectionImpl.java:144)
at
com.caucho.sql.ManagedFactoryImpl.createManagedConnection(ManagedFactoryImpl.java:153)
at
com.caucho.env.dbpool.ConnectionPool.createConnection(ConnectionPool.java:980)
at
com.caucho.env.dbpool.ConnectionPool.allocatePoolConnection(ConnectionPool.java:822)
at
com.caucho.env.dbpool.ConnectionPool.allocateConnection(ConnectionPool.java:714)
at
com.caucho.env.dbpool.ConnectionPool.allocateConnection(ConnectionPool.java:688)
at com.caucho.sql.UserDataSource.getConnection(UserDataSource.java:71)
at com.caucho.sql.DBPool.getConnection(DBPool.java:785)
at
org.springframework.orm.hibernate3.LocalDataSourceConnectionProvider.getConnection(LocalDataSourceConnectionProvider.java:82)
at
org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:417)
at
org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:144)
at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:119)
at
org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:57)
at
org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1326)
at
org.springframework.orm.hibernate3.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:558)
at
org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:374)
at
org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:263)
at
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:101)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
at $Proxy51.findByLogin(Unknown Source)
at com.latencyzero.satdb.LoginAction.execute(LoginAction.java:70)
at
org.apache.struts.chain.commands.servlet.ExecuteAction.execute(ExecuteAction.java:58)
at
org.apache.struts.chain.commands.AbstractExecuteAction.execute(AbstractExecuteAction.java:67)
at
org.apache.struts.chain.commands.ActionCommandBase.execute(ActionCommandBase.java:51)
at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190)
at
org.apache.commons.chain.generic.LookupCommand.execute(LookupCommand.java:304)
at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190)
at
org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:283)
at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:119)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:96)
at
com.caucho.server.dispatch.ServletFilterChain.doFilter(ServletFilterChain.java:109)
at com.latencyzero.satdb.RequestFilter.doFilter(RequestFilter.java:124)
at
com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:89)
at
org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at
com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:89)
at
com.latencyzero.satdb.SecurityFilter.doFilter(SecurityFilter.java:228)
at
com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:89)
at
com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:156)
at
com.caucho.server.webapp.AccessLogFilterChain.doFilter(AccessLogFilterChain.java:95)
at
com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:287)
at
com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:792)
at
com.caucho.network.listen.TcpSocketLink.dispatchRequest(TcpSocketLink.java:730)
at
com.caucho.network.listen.TcpSocketLink.handleRequest(TcpSocketLink.java:689)
at
com.caucho.network.listen.TcpSocketLink.handleRequestsImpl(TcpSocketLink.java:669)
at
com.caucho.network.listen.TcpSocketLink.handleRequests(TcpSocketLink.java:617)
at com.caucho.network.listen.AcceptTask.doTask(AcceptTask.java:104)
at
com.caucho.network.listen.ConnectionReadTask.runThread(ConnectionReadTask.java:98)
at
com.caucho.network.listen.ConnectionReadTask.run(ConnectionReadTask.java:81)
at com.caucho.network.listen.AcceptTask.run(AcceptTask.java:67)
at com.caucho.env.thread.ResinThread.runTasks(ResinThread.java:164)
at com.caucho.env.thread.ResinThread.run(ResinThread.java:130)
Caused by: java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
at java.net.Socket.connect(Socket.java:529)
at java.net.Socket.connect(Socket.java:478)
at java.net.Socket.<init>(Socket.java:375)
at java.net.Socket.<init>(Socket.java:218)
at
com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:254)
at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:295)
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.<init>(ConnectionImpl.java:794)
at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
Thanks,
Rick
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