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cloudcoderdotorg / CloudCoder

A web-based programming exercise system.
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Cannot start web app and builder #62

Closed snim2 closed 11 years ago

snim2 commented 11 years ago

The instructions here on the wiki

say "Start CloudCoder webapp and builder. Right-click on the Builder2.java in the CloudCoderBuilder2 project (it's in the package that ends with .server) and choose Run As → Java Application; ". In my Eclipse (Juno) there is no run configuration for Builder2.java. There is one for Builder2Server.java, but that gives a Connection Refused exception:

Running the builder interactively (type "shutdown" to quit)
2013-08-15 21:45:43,412 Builder2Daemon WARN  - Could not load cloudcoder.properties, using default config properties
2013-08-15 21:45:43,481 WebappSocketFactory INFO  - Builder: using keystore defaultkeystore.jks
2013-08-15 21:45:43,484 ThreadGroupSecurityManager INFO  - ThreadGroupSecurityManager created
2013-08-15 21:45:43,498 Builder2Daemon INFO  - Builder starting
2013-08-15 21:45:43,498 Builder2Daemon INFO  - appHost=localhost
2013-08-15 21:45:43,503 Builder2Daemon INFO  - appPort=47374
2013-08-15 21:45:43,503 Builder2Daemon INFO  - numThreads=2
2013-08-15 21:45:43,672 NoConnectTimer ERROR - Cannot connect to CloudCoder server
java.net.ConnectException: Connection refused
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    at java.net.Socket.connect(Socket.java:579)
    at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:618)
    at sun.security.ssl.SSLSocketImpl.<init>(SSLSocketImpl.java:407)
    at sun.security.ssl.SSLSocketFactoryImpl.createSocket(SSLSocketFactoryImpl.java:88)
    at org.cloudcoder.builder2.server.WebappSocketFactory.connectToWebapp(WebappSocketFactory.java:147)
    at org.cloudcoder.builder2.server.Builder2Server.createSecureSocket(Builder2Server.java:148)
    at org.cloudcoder.builder2.server.Builder2Server.attemptToConnectToServer(Builder2Server.java:154)
    at org.cloudcoder.builder2.server.Builder2Server.runOnce(Builder2Server.java:95)
    at org.cloudcoder.builder2.server.Builder2Server.run(Builder2Server.java:84)
    at java.lang.Thread.run(Thread.java:724)
2013-08-15 21:45:43,672 NoConnectTimer ERROR - Cannot connect to CloudCoder server
java.net.ConnectException: Connection refused
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    at java.net.Socket.connect(Socket.java:579)
    at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:618)
    at sun.security.ssl.SSLSocketImpl.<init>(SSLSocketImpl.java:407)
    at sun.security.ssl.SSLSocketFactoryImpl.createSocket(SSLSocketFactoryImpl.java:88)
    at org.cloudcoder.builder2.server.WebappSocketFactory.connectToWebapp(WebappSocketFactory.java:147)
    at org.cloudcoder.builder2.server.Builder2Server.createSecureSocket(Builder2Server.java:148)
    at org.cloudcoder.builder2.server.Builder2Server.attemptToConnectToServer(Builder2Server.java:154)
    at org.cloudcoder.builder2.server.Builder2Server.runOnce(Builder2Server.java:95)
    at org.cloudcoder.builder2.server.Builder2Server.run(Builder2Server.java:84)
    at java.lang.Thread.run(Thread.java:724)
2013-08-15 21:45:48,681 NoConnectTimer ERROR - Cannot connect to CloudCoder server (last connection about 5 seconds ago)
java.net.ConnectException: Connection refused
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    at java.net.Socket.connect(Socket.java:579)
    at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:618)
    at sun.security.ssl.SSLSocketImpl.<init>(SSLSocketImpl.java:407)
    at sun.security.ssl.SSLSocketFactoryImpl.createSocket(SSLSocketFactoryImpl.java:88)
    at org.cloudcoder.builder2.server.WebappSocketFactory.connectToWebapp(WebappSocketFactory.java:147)
    at org.cloudcoder.builder2.server.Builder2Server.createSecureSocket(Builder2Server.java:148)
    at org.cloudcoder.builder2.server.Builder2Server.attemptToConnectToServer(Builder2Server.java:154)
    at org.cloudcoder.builder2.server.Builder2Server.runOnce(Builder2Server.java:95)
    at org.cloudcoder.builder2.server.Builder2Server.run(Builder2Server.java:84)
    at java.lang.Thread.run(Thread.java:724)
2013-08-15 21:45:48,685 NoConnectTimer ERROR - Cannot connect to CloudCoder server (last connection about 5 seconds ago)
java.net.ConnectException: Connection refused
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    at java.net.Socket.connect(Socket.java:579)
    at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:618)
    at sun.security.ssl.SSLSocketImpl.<init>(SSLSocketImpl.java:407)
    at sun.security.ssl.SSLSocketFactoryImpl.createSocket(SSLSocketFactoryImpl.java:88)
    at org.cloudcoder.builder2.server.WebappSocketFactory.connectToWebapp(WebappSocketFactory.java:147)
    at org.cloudcoder.builder2.server.Builder2Server.createSecureSocket(Builder2Server.java:148)
    at org.cloudcoder.builder2.server.Builder2Server.attemptToConnectToServer(Builder2Server.java:154)
    at org.cloudcoder.builder2.server.Builder2Server.runOnce(Builder2Server.java:95)
    at org.cloudcoder.builder2.server.Builder2Server.run(Builder2Server.java:84)
    at java.lang.Thread.run(Thread.java:724)
2013-08-15 21:45:58,693 NoConnectTimer ERROR - Cannot connect to CloudCoder server (last connection about 15 seconds ago)
java.net.ConnectException: Connection refused
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    at java.net.Socket.connect(Socket.java:579)
    at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:618)
    at sun.security.ssl.SSLSocketImpl.<init>(SSLSocketImpl.java:407)
    at sun.security.ssl.SSLSocketFactoryImpl.createSocket(SSLSocketFactoryImpl.java:88)
    at org.cloudcoder.builder2.server.WebappSocketFactory.connectToWebapp(WebappSocketFactory.java:147)
    at org.cloudcoder.builder2.server.Builder2Server.createSecureSocket(Builder2Server.java:148)
    at org.cloudcoder.builder2.server.Builder2Server.attemptToConnectToServer(Builder2Server.java:154)
    at org.cloudcoder.builder2.server.Builder2Server.runOnce(Builder2Server.java:95)
    at org.cloudcoder.builder2.server.Builder2Server.run(Builder2Server.java:84)
    at java.lang.Thread.run(Thread.java:724)
2013-08-15 21:45:58,700 NoConnectTimer ERROR - Cannot connect to CloudCoder server (last connection about 15 seconds ago)
java.net.ConnectException: Connection refused
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    at java.net.Socket.connect(Socket.java:579)
    at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:618)
    at sun.security.ssl.SSLSocketImpl.<init>(SSLSocketImpl.java:407)
    at sun.security.ssl.SSLSocketFactoryImpl.createSocket(SSLSocketFactoryImpl.java:88)
    at org.cloudcoder.builder2.server.WebappSocketFactory.connectToWebapp(WebappSocketFactory.java:147)
    at org.cloudcoder.builder2.server.Builder2Server.createSecureSocket(Builder2Server.java:148)
    at org.cloudcoder.builder2.server.Builder2Server.attemptToConnectToServer(Builder2Server.java:154)
    at org.cloudcoder.builder2.server.Builder2Server.runOnce(Builder2Server.java:95)
    at org.cloudcoder.builder2.server.Builder2Server.run(Builder2Server.java:84)
    at java.lang.Thread.run(Thread.java:724)
2013-08-15 21:46:58,743 NoConnectTimer ERROR - Cannot connect to CloudCoder server (last connection about 75 seconds ago)
java.net.ConnectException: Connection refused
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    at java.net.Socket.connect(Socket.java:579)
    at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:618)
    at sun.security.ssl.SSLSocketImpl.<init>(SSLSocketImpl.java:407)
    at sun.security.ssl.SSLSocketFactoryImpl.createSocket(SSLSocketFactoryImpl.java:88)
    at org.cloudcoder.builder2.server.WebappSocketFactory.connectToWebapp(WebappSocketFactory.java:147)
    at org.cloudcoder.builder2.server.Builder2Server.createSecureSocket(Builder2Server.java:148)
    at org.cloudcoder.builder2.server.Builder2Server.attemptToConnectToServer(Builder2Server.java:154)
    at org.cloudcoder.builder2.server.Builder2Server.runOnce(Builder2Server.java:95)
    at org.cloudcoder.builder2.server.Builder2Server.run(Builder2Server.java:84)
    at java.lang.Thread.run(Thread.java:724)
2013-08-15 21:46:58,747 NoConnectTimer ERROR - Cannot connect to CloudCoder server (last connection about 75 seconds ago)
java.net.ConnectException: Connection refused
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    at java.net.Socket.connect(Socket.java:579)
    at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:618)
    at sun.security.ssl.SSLSocketImpl.<init>(SSLSocketImpl.java:407)
    at sun.security.ssl.SSLSocketFactoryImpl.createSocket(SSLSocketFactoryImpl.java:88)
    at org.cloudcoder.builder2.server.WebappSocketFactory.connectToWebapp(WebappSocketFactory.java:147)
    at org.cloudcoder.builder2.server.Builder2Server.createSecureSocket(Builder2Server.java:148)
    at org.cloudcoder.builder2.server.Builder2Server.attemptToConnectToServer(Builder2Server.java:154)
    at org.cloudcoder.builder2.server.Builder2Server.runOnce(Builder2Server.java:95)
    at org.cloudcoder.builder2.server.Builder2Server.run(Builder2Server.java:84)
    at java.lang.Thread.run(Thread.java:724)

Did I miss a step somewhere?!

daveho commented 11 years ago

Thanks for the feedback!

You're right about Builder2 vs Builder2Server - I'll update the doc.

This error message is actually expected - the builder will try to connect to the webapp if it is running, but if it isn't it will log an error (which is that you're seeing) and continue trying to connect. If you start the webapp, the Builder2Server console window should then have a log message looking something like

2013-08-16 10:09:53,609 Builder2Server INFO - Connected!

Do you see this message if the webapp (in the CloudCoder project) is started?

In general, a builder thread will periodically attempt to the webapp, so that if the webapp goes down for some reason, it will reconnect when the webapp is restarted.

snim2 commented 11 years ago

OK, I don't do much web stuff with Java, so that was a bit unexpected. Still doesn't work though. This is in Eclipse Juno running on Ubuntu 13.04 with Chromium. In the browser I see "Plugin failed to connect to development mode server" and in the development mode console:

 15:42:11.402 [ERROR] [cloudcoder] Failed to load module 'cloudcoder' from user agent 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/28.0.1500.71 Chrome/28.0.1500.71 Safari/537.36' at localhost:35433
java.lang.NoSuchFieldError: warningThreshold
    at com.google.gwt.dev.javac.JdtCompiler.getCompilerOptions(JdtCompiler.java:413)
    at com.google.gwt.dev.javac.JdtCompiler$CompilerImpl.<init>(JdtCompiler.java:228)
    at com.google.gwt.dev.javac.JdtCompiler.doCompile(JdtCompiler.java:717)
    at com.google.gwt.dev.javac.CompilationStateBuilder$CompileMoreLater.compile(CompilationStateBuilder.java:248)
    at com.google.gwt.dev.javac.CompilationStateBuilder.doBuildFrom(CompilationStateBuilder.java:463)
    at com.google.gwt.dev.javac.CompilationStateBuilder.buildFrom(CompilationStateBuilder.java:388)
    at com.google.gwt.dev.cfg.ModuleDef.getCompilationState(ModuleDef.java:373)
    at com.google.gwt.dev.DevModeBase$UiBrowserWidgetHostImpl.createModuleSpaceHost(DevModeBase.java:108)
    at com.google.gwt.dev.shell.OophmSessionHandler.loadModule(OophmSessionHandler.java:197)
    at com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:526)
    at com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:364)
    at java.lang.Thread.run(Thread.java:724)

and in the Console:

[WARN] Server class 'org.cloudcoder.app.shared.model.SubmissionException' could not be found in the web app, but was found on the system classpath
   [WARN] Adding classpath entry 'file:/home/snim2/Desktop/working/CloudCoder/CloudCoderModelClasses/bin/' to the web app classpath for this session
   For additional info see: file:/home/snim2/inst/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.5.1/gwt-2.5.1/doc/helpInfo/webAppClassPath.html
[WARN] Server class 'org.cloudcoder.app.server.persist.WebappDatabaseConfigServletContextListener' could not be found in the web app, but was found on the system classpath
   [WARN] Adding classpath entry 'file:/home/snim2/Desktop/working/CloudCoder/CloudCoderModelClassesPersistence/bin/' to the web app classpath for this session
   For additional info see: file:/home/snim2/inst/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.5.1/gwt-2.5.1/doc/helpInfo/webAppClassPath.html
keystore=defaultkeystore.jks,password=changeit
2013-08-16 15:41:25,022 OutOfProcessSubmitService INFO  - Using keystore defaultkeystore.jks
2013-08-16 15:41:25,151 OutOfProcessSubmitService INFO  - Out of process submit service server thread started
2013-08-16 15:41:25,216 MLog INFO  - MLog clients using log4j logging.
2013-08-16 15:41:25,336 C3P0Registry INFO  - Initializing c3p0-0.9.2.1 [built 20-March-2013 10:47:27 +0000; debug? true; trace: 10]
2013-08-16 15:41:25,491 AbstractPoolBackedDataSource INFO  - Initializing c3p0 pool... com.mchange.v2.c3p0.ComboPooledDataSource [ acquireIncrement -> 3, acquireRetryAttempts -> 30, acquireRetryDelay -> 1000, autoCommitOnClose -> false, automaticTestTable -> null, breakAfterAcquireFailure -> false, checkoutTimeout -> 0, connectionCustomizerClassName -> null, connectionTesterClassName -> com.mchange.v2.c3p0.impl.DefaultConnectionTester, dataSourceName -> z8kfsx8w11m7iff1ymlmcn|53c5eee0, debugUnreturnedConnectionStackTraces -> false, description -> null, driverClass -> com.mysql.jdbc.Driver, factoryClassLocation -> null, forceIgnoreUnresolvedTransactions -> false, identityToken -> z8kfsx8w11m7iff1ymlmcn|53c5eee0, idleConnectionTestPeriod -> 0, initialPoolSize -> 3, jdbcUrl -> jdbc:mysql://localhost/cloudcoderdb, maxAdministrativeTaskTime -> 0, maxConnectionAge -> 0, maxIdleTime -> 0, maxIdleTimeExcessConnections -> 0, maxPoolSize -> 150, maxStatements -> 180, maxStatementsPerConnection -> 0, minPoolSize -> 10, numHelperThreads -> 3, preferredTestQuery -> null, properties -> {user=******, password=******}, propertyCycle -> 0, statementCacheNumDeferredCloseThreads -> 0, testConnectionOnCheckin -> false, testConnectionOnCheckout -> false, unreturnedConnectionTimeout -> 0, userOverrides -> {}, usesTraditionalReflectiveProxies -> false ]
2013-08-16 15:41:25,755 WorkerTask INFO  - oop buildsvc WorkerTask starting
2013-08-16 15:41:25,903 WorkerTask INFO  - oop buildsvc WorkerTask starting
2013-08-16 15:41:56,087 BasicResourcePool$ScatteredAcquireTask WARN  - com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@456c476 -- Acquisition Attempt Failed!!! Clearing pending acquires. While trying to acquire a needed new resource, we failed to succeed more than the maximum number of allowed acquisition attempts (30). Last acquisition attempt exception: 
java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1073)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3597)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3529)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:935)
    at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:4101)
    at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1300)
    at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2337)
    at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2370)
    at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2154)
    at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:792)
    at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
    at sun.reflect.GeneratedConstructorAccessor8.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
    at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:381)
    at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:305)
    at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:146)
    at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:195)
    at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:184)
    at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:200)
    at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1086)
    at com.mchange.v2.resourcepool.BasicResourcePool.doAcquireAndDecrementPendingAcquiresWithinLockOnSuccess(BasicResourcePool.java:1073)
    at com.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java:44)
    at com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.run(BasicResourcePool.java:1810)
    at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:648)
2013-08-16 15:41:56,100 BasicResourcePool$ScatteredAcquireTask WARN  - com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@288de40e -- Acquisition Attempt Failed!!! Clearing pending acquires. While trying to acquire a needed new resource, we failed to succeed more than the maximum number of allowed acquisition attempts (30). Last acquisition attempt exception: 
java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1073)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3597)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3529)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:935)
    at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:4101)
    at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1300)
    at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2337)
    at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2370)
    at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2154)
    at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:792)
    at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
    at sun.reflect.GeneratedConstructorAccessor8.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
    at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:381)
    at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:305)
    at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:146)
    at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:195)
    at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:184)
    at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:200)
    at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1086)
    at com.mchange.v2.resourcepool.BasicResourcePool.doAcquireAndDecrementPendingAcquiresWithinLockOnSuccess(BasicResourcePool.java:1073)
    at com.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java:44)
    at com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.run(BasicResourcePool.java:1810)
    at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:648)
2013-08-16 15:41:56,098 BasicResourcePool$ScatteredAcquireTask WARN  - com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@46ab007f -- Acquisition Attempt Failed!!! Clearing pending acquires. While trying to acquire a needed new resource, we failed to succeed more than the maximum number of allowed acquisition attempts (30). Last acquisition attempt exception: 
java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1073)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3597)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3529)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:935)
    at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:4101)
    at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1300)
    at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2337)
    at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2370)
    at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2154)
    at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:792)
    at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
    at sun.reflect.GeneratedConstructorAccessor8.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
    at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:381)
    at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:305)
    at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:146)
    at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:195)
    at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:184)
    at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:200)
    at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1086)
    at com.mchange.v2.resourcepool.BasicResourcePool.doAcquireAndDecrementPendingAcquiresWithinLockOnSuccess(BasicResourcePool.java:1073)
    at com.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java:44)
    at com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.run(BasicResourcePool.java:1810)
    at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:648)
2013-08-16 15:41:56,161 BasicResourcePool WARN  - Having failed to acquire a resource, com.mchange.v2.resourcepool.BasicResourcePool@57f9a8a0 is interrupting all Threads waiting on a resource to check out. Will try again in response to new client requests.
2013-08-16 15:41:56,166 BasicResourcePool WARN  - Having failed to acquire a resource, com.mchange.v2.resourcepool.BasicResourcePool@57f9a8a0 is interrupting all Threads waiting on a resource to check out. Will try again in response to new client requests.
2013-08-16 15:41:56,167 BasicResourcePool WARN  - Having failed to acquire a resource, com.mchange.v2.resourcepool.BasicResourcePool@57f9a8a0 is interrupting all Threads waiting on a resource to check out. Will try again in response to new client requests.
2013-08-16 15:41:56,169 CheckSchemaVersionsServletContextListener ERROR - Error checking schema versions: SQLException: check database configuration
2013-08-16 15:41:56,169 BasicResourcePool$ScatteredAcquireTask WARN  - com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@5f0e38b2 -- Acquisition Attempt Failed!!! Clearing pending acquires. While trying to acquire a needed new resource, we failed to succeed more than the maximum number of allowed acquisition attempts (30). Last acquisition attempt exception: 
java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1073)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3597)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3529)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:935)
    at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:4101)
    at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1300)
    at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2337)
    at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2370)
    at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2154)
    at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:792)
    at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
    at sun.reflect.GeneratedConstructorAccessor8.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
    at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:381)
    at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:305)
    at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:146)
    at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:195)
    at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:184)
    at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:200)
    at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1086)
    at com.mchange.v2.resourcepool.BasicResourcePool.doAcquireAndDecrementPendingAcquiresWithinLockOnSuccess(BasicResourcePool.java:1073)
    at com.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java:44)
    at com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.run(BasicResourcePool.java:1810)
    at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:648)
2013-08-16 15:41:56,176 BasicResourcePool WARN  - Having failed to acquire a resource, com.mchange.v2.resourcepool.BasicResourcePool@57f9a8a0 is interrupting all Threads waiting on a resource to check out. Will try again in response to new client requests.
2013-08-16 15:41:56,173 BasicResourcePool$ScatteredAcquireTask WARN  - com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@5b531130 -- Acquisition Attempt Failed!!! Clearing pending acquires. While trying to acquire a needed new resource, we failed to succeed more than the maximum number of allowed acquisition attempts (30). Last acquisition attempt exception: 
java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1073)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3597)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3529)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:935)
    at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:4101)
    at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1300)
    at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2337)
    at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2370)
    at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2154)
    at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:792)
    at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
    at sun.reflect.GeneratedConstructorAccessor8.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
    at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:381)
    at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:305)
    at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:146)
    at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:195)
    at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:184)
    at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:200)
    at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1086)
    at com.mchange.v2.resourcepool.BasicResourcePool.doAcquireAndDecrementPendingAcquiresWithinLockOnSuccess(BasicResourcePool.java:1073)
    at com.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java:44)
    at com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.run(BasicResourcePool.java:1810)
    at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:648)
2013-08-16 15:41:56,180 BasicResourcePool WARN  - Having failed to acquire a resource, com.mchange.v2.resourcepool.BasicResourcePool@57f9a8a0 is interrupting all Threads waiting on a resource to check out. Will try again in response to new client requests.
2013-08-16 15:41:56,179 BasicResourcePool$ScatteredAcquireTask WARN  - com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@2c64f545 -- Acquisition Attempt Failed!!! Clearing pending acquires. While trying to acquire a needed new resource, we failed to succeed more than the maximum number of allowed acquisition attempts (30). Last acquisition attempt exception: 
java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1073)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3597)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3529)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:935)
    at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:4101)
    at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1300)
    at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2337)
    at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2370)
    at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2154)
    at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:792)
    at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
    at sun.reflect.GeneratedConstructorAccessor8.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
    at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:381)
    at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:305)
    at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:146)
    at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:195)
    at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:184)
    at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:200)
    at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1086)
    at com.mchange.v2.resourcepool.BasicResourcePool.doAcquireAndDecrementPendingAcquiresWithinLockOnSuccess(BasicResourcePool.java:1073)
    at com.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java:44)
    at com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.run(BasicResourcePool.java:1810)
    at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:648)
2013-08-16 15:41:56,182 BasicResourcePool$ScatteredAcquireTask WARN  - com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@24350370 -- Acquisition Attempt Failed!!! Clearing pending acquires. While trying to acquire a needed new resource, we failed to succeed more than the maximum number of allowed acquisition attempts (30). Last acquisition attempt exception: 
java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1073)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3597)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3529)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:935)
    at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:4101)
    at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1300)
    at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2337)
    at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2370)
    at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2154)
    at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:792)
    at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
    at sun.reflect.GeneratedConstructorAccessor8.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
    at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:381)
    at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:305)
    at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:146)
    at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:195)
    at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:184)
    at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:200)
    at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1086)
    at com.mchange.v2.resourcepool.BasicResourcePool.doAcquireAndDecrementPendingAcquiresWithinLockOnSuccess(BasicResourcePool.java:1073)
    at com.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java:44)
    at com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.run(BasicResourcePool.java:1810)
    at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:648)
2013-08-16 15:41:56,182 BasicResourcePool WARN  - Having failed to acquire a resource, com.mchange.v2.resourcepool.BasicResourcePool@57f9a8a0 is interrupting all Threads waiting on a resource to check out. Will try again in response to new client requests.
2013-08-16 15:41:56,184 BasicResourcePool WARN  - Having failed to acquire a resource, com.mchange.v2.resourcepool.BasicResourcePool@57f9a8a0 is interrupting all Threads waiting on a resource to check out. Will try again in response to new client requests.
2013-08-16 15:41:56,184 BasicResourcePool$ScatteredAcquireTask WARN  - com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@157cc11b -- Acquisition Attempt Failed!!! Clearing pending acquires. While trying to acquire a needed new resource, we failed to succeed more than the maximum number of allowed acquisition attempts (30). Last acquisition attempt exception: 
java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1073)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3597)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3529)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:935)
    at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:4101)
    at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1300)
    at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2337)
    at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2370)
    at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2154)
    at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:792)
    at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
    at sun.reflect.GeneratedConstructorAccessor8.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
    at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:381)
    at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:305)
    at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:146)
    at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:195)
    at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:184)
    at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:200)
    at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1086)
    at com.mchange.v2.resourcepool.BasicResourcePool.doAcquireAndDecrementPendingAcquiresWithinLockOnSuccess(BasicResourcePool.java:1073)
    at com.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java:44)
    at com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.run(BasicResourcePool.java:1810)
    at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:648)
2013-08-16 15:41:56,186 BasicResourcePool WARN  - Having failed to acquire a resource, com.mchange.v2.resourcepool.BasicResourcePool@57f9a8a0 is interrupting all Threads waiting on a resource to check out. Will try again in response to new client requests.
2013-08-16 15:41:56,187 BasicResourcePool$ScatteredAcquireTask WARN  - com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@4501fbdc -- Acquisition Attempt Failed!!! Clearing pending acquires. While trying to acquire a needed new resource, we failed to succeed more than the maximum number of allowed acquisition attempts (30). Last acquisition attempt exception: 
java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1073)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3597)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3529)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:935)
    at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:4101)
    at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1300)
    at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2337)
    at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2370)
    at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2154)
    at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:792)
    at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
    at sun.reflect.GeneratedConstructorAccessor8.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
    at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:381)
    at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:305)
    at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:146)
    at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:195)
    at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:184)
    at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:200)
    at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1086)
    at com.mchange.v2.resourcepool.BasicResourcePool.doAcquireAndDecrementPendingAcquiresWithinLockOnSuccess(BasicResourcePool.java:1073)
    at com.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java:44)
    at com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.run(BasicResourcePool.java:1810)
    at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:648)
2013-08-16 15:41:56,187 BasicResourcePool$ScatteredAcquireTask WARN  - com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@53e4be9 -- Acquisition Attempt Failed!!! Clearing pending acquires. While trying to acquire a needed new resource, we failed to succeed more than the maximum number of allowed acquisition attempts (30). Last acquisition attempt exception: 
java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1073)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3597)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3529)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:935)
    at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:4101)
    at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1300)
    at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2337)
    at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2370)
    at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2154)
    at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:792)
    at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
    at sun.reflect.GeneratedConstructorAccessor8.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
    at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:381)
    at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:305)
    at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:146)
    at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:195)
    at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:184)
    at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:200)
    at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1086)
    at com.mchange.v2.resourcepool.BasicResourcePool.doAcquireAndDecrementPendingAcquiresWithinLockOnSuccess(BasicResourcePool.java:1073)
    at com.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java:44)
    at com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.run(BasicResourcePool.java:1810)
    at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:648)
2013-08-16 15:41:56,189 BasicResourcePool WARN  - Having failed to acquire a resource, com.mchange.v2.resourcepool.BasicResourcePool@57f9a8a0 is interrupting all Threads waiting on a resource to check out. Will try again in response to new client requests.
2013-08-16 15:41:56,190 BasicResourcePool WARN  - Having failed to acquire a resource, com.mchange.v2.resourcepool.BasicResourcePool@57f9a8a0 is interrupting all Threads waiting on a resource to check out. Will try again in response to new client requests.
2013-08-16 15:42:08,642 NocacheJsFilter INFO  - Adding Cache-Control header to /cloudcoder/cloudcoder.nocache.js
daveho commented 11 years ago

It looks like the webapp is trying to connect to mysql with username "root" and password "root", but that username/password combination is refused by the server.

If you want to connect using a different username/password combination, you can edit CloudCoder/war/WEB-INF/web.xml, and change the entries for the cloudcoder.db.user and cloudcoder.db.passwd context parameters. Note that the configuration properties in web.xml are only used when running in development mode - when running in production, the values in cloudcoder.properties are used. This is probably a bit confusing, but we wanted to consolidate all required configuration properties in cloudcoder.properties so that the user didn't have to edit web.xml manually.

snim2 commented 11 years ago

OK, sorted that now.

I'm using Eclipse Juno and the latest GWT which I think is 2.5.1. So, when I fixed the above I then got the error described here. I've fixed that by moving the the GWT library up to the top of the build path in the Order and export tab of the Build path dialog for the CloudCoder project ... and after all that it's working just fine.

Thanks for your help!

daveho commented 11 years ago

Glad you got it working. I will apply the change you mention to the build path for the CloudCoder project.

daveho commented 11 years ago

Hmm...when I move the GWT SDK to the top of "Order and export" I get a compiler error in GetCoursesAndProblemsServiceImpl. I think GWT 2.5.1 includes a version of Apache httpclient that is different than the one we use.

I'll mark this as closed for now, but please open a new issue if you encounter any further problems.

snim2 commented 11 years ago

Weird. I've edited my version of the wiki here but cannot open a pull request because git hub doesn't support them for wiki pages (I think). Feel free to copy from the diff if it helps.