（使用：Ubuntu 14.04，Tomcat 7.0.59，Java 8（Oracle），mysql-connector-java-5.1.34-bin.jar，MySQL 5.7.7，Eclipse 4.4.1）
从昨天开始，我得到了一个奇怪的异常，告诉我“服务器启动时没有加载插件”。我找不到任何关于它的东西。结果是没有创建数据源/连接池 - 无法连接到数据库。
因为有几个警告＆amp;日志中的严重消息有不同的原因（“无法创建池的初始连接。”，“意外的异常解析参考”，“无法在JMX中注册”）我决定只在这里粘贴整个怪物（有点剥离，因为这里有30000个字符有限公司）：
Jun 06, 2015 10:32:00 AM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:mymyAppRest' did not find a matching property.
Jun 06, 2015 10:32:01 AM org.apache.coyote.AbstractProtocol init
INFORMATION: Initializing ProtocolHandler ["http-bio-8080"]
Jun 06, 2015 10:32:01 AM org.apache.coyote.AbstractProtocol init
INFORMATION: Initializing ProtocolHandler ["http-bio-8443"]
Jun 06, 2015 10:32:01 AM org.apache.catalina.startup.Catalina load
INFORMATION: Initialization processed in 925 ms
Jun 06, 2015 10:32:01 AM org.apache.catalina.core.StandardService startInternal
INFORMATION: Starting service Catalina
Jun 06, 2015 10:32:01 AM org.apache.catalina.core.StandardEngine startInternal
INFORMATION: Starting Servlet Engine: Apache Tomcat/7.0.59
Jun 06, 2015 10:32:05 AM org.apache.tomcat.jdbc.pool.ConnectionPool init
SEVERE: Unable to create initial connections of pool.
java.sql.SQLException: Plugin '*765C23FCC8127A2234DBCFB6E5207D82ED86264E' is not loaded
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:998)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3835)
...
at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1659)
at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1206)
at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2239)
at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2270)
at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2069)
at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:794)
at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:44)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:389)
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:399)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:325)
at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:278)
at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:182)
at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:701)
at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:635)
at org.apache.tomcat.jdbc.pool.ConnectionPool.init(ConnectionPool.java:486)
at org.apache.tomcat.jdbc.pool.ConnectionPool.<init>(ConnectionPool.java:144)
at org.apache.tomcat.jdbc.pool.DataSourceProxy.pCreatePool(DataSourceProxy.java:116)
at org.apache.tomcat.jdbc.pool.DataSourceProxy.createPool(DataSourceProxy.java:103)
at org.apache.tomcat.jdbc.pool.DataSourceFactory.createDataSource(DataSourceFactory.java:554)
at org.apache.tomcat.jdbc.pool.DataSourceFactory.getObjectInstance(DataSourceFactory.java:242)
at org.apache.naming.factory.ResourceFactory.getObjectInstance(ResourceFactory.java:141)
at javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:321)
at org.apache.naming.NamingContext.lookup(NamingContext.java:842)
...
at org.apache.catalina.core.NamingContextListener.addResource(NamingContextListener.java:1103)
at org.apache.catalina.core.NamingContextListener.createNamingContext(NamingContextListener.java:682)
at org.apache.catalina.core.NamingContextListener.lifecycleEvent(NamingContextListener.java:271)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5412)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1575)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1565)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Jun 06, 2015 10:32:05 AM org.apache.naming.NamingContext lookup
WARNING: Unexpected exception resolving reference
java.sql.SQLException: Plugin '*765C23FCC8127A2234DBCFB6E5207D82ED86264E' is not loaded
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:998)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3835)
...
at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1659)
at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1206)
at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2239)
at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2270)
at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2069)
at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:794)
at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:44)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:389)
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:399)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:325)
at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:278)
at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:182)
at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:701)
at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:635)
at org.apache.tomcat.jdbc.pool.ConnectionPool.init(ConnectionPool.java:486)
at org.apache.tomcat.jdbc.pool.ConnectionPool.<init>(ConnectionPool.java:144)
at org.apache.tomcat.jdbc.pool.DataSourceProxy.pCreatePool(DataSourceProxy.java:116)
at org.apache.tomcat.jdbc.pool.DataSourceProxy.createPool(DataSourceProxy.java:103)
at org.apache.tomcat.jdbc.pool.DataSourceFactory.createDataSource(DataSourceFactory.java:554)
at org.apache.tomcat.jdbc.pool.DataSourceFactory.getObjectInstance(DataSourceFactory.java:242)
at org.apache.naming.factory.ResourceFactory.getObjectInstance(ResourceFactory.java:141)
at javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:321)
at org.apache.naming.NamingContext.lookup(NamingContext.java:842)
...
at org.apache.catalina.core.NamingContextListener.addResource(NamingContextListener.java:1103)
at org.apache.catalina.core.NamingContextListener.createNamingContext(NamingContextListener.java:682)
at org.apache.catalina.core.NamingContextListener.lifecycleEvent(NamingContextListener.java:271)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5412)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1575)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1565)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Jun 06, 2015 10:32:05 AM org.apache.catalina.core.NamingContextListener addResource
WARNING: Failed to register in JMX: javax.naming.NamingException: Plugin '*765C23FCC8127A2234DBCFB6E5207D82ED86264E' is not loaded
2015-06-06 10:32:05 INFO QuartzInitializerListener:147 - Quartz Initializer Servlet loaded, initializing Scheduler...
Jun 06, 2015 10:32:05 AM org.apache.tomcat.jdbc.pool.ConnectionPool init
SEVERE: Unable to create initial connections of pool.
java.sql.SQLException: Plugin '*765C23FCC8127A2234DBCFB6E5207D82ED86264E' is not loaded
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:998)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3835)
...
at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1659)
at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1206)
at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2239)
at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2270)
at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2069)
at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:794)
at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:44)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:389)
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:399)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:325)
at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:278)
at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:182)
at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:701)
at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:635)
at org.apache.tomcat.jdbc.pool.ConnectionPool.init(ConnectionPool.java:486)
at org.apache.tomcat.jdbc.pool.ConnectionPool.<init>(ConnectionPool.java:144)
at org.apache.tomcat.jdbc.pool.DataSourceProxy.pCreatePool(DataSourceProxy.java:116)
at org.apache.tomcat.jdbc.pool.DataSourceProxy.createPool(DataSourceProxy.java:103)
at org.apache.tomcat.jdbc.pool.DataSourceFactory.createDataSource(DataSourceFactory.java:554)
at org.apache.tomcat.jdbc.pool.DataSourceFactory.getObjectInstance(DataSourceFactory.java:242)
at org.apache.naming.factory.ResourceFactory.getObjectInstance(ResourceFactory.java:141)
at javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:321)
at org.apache.naming.NamingContext.lookup(NamingContext.java:842)
...
at org.apache.naming.SelectorContext.lookup(SelectorContext.java:156)
at javax.naming.InitialContext.lookup(InitialContext.java:417)
at org.quartz.utils.JNDIConnectionProvider.init(JNDIConnectionProvider.java:124)
at org.quartz.utils.JNDIConnectionProvider.<init>(JNDIConnectionProvider.java:102)
at org.quartz.impl.StdSchedulerFactory.instantiate(StdSchedulerFactory.java:993)
at org.quartz.impl.StdSchedulerFactory.getScheduler(StdSchedulerFactory.java:1519)
at org.quartz.ee.servlet.QuartzInitializerListener.contextInitialized(QuartzInitializerListener.java:171)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5016)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5524)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1575)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1565)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Jun 06, 2015 10:32:05 AM org.apache.naming.NamingContext lookup
WARNING: Unexpected exception resolving reference
java.sql.SQLException: Plugin '*765C23FCC8127A2234DBCFB6E5207D82ED86264E' is not loaded
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:998)
...
2015-06-06 10:32:05 ERROR JNDIConnectionProvider:126 - Error looking up datasource: Plugin '*765C23FCC8127A2234DBCFB6E5207D82ED86264E' is not loaded
javax.naming.NamingException: Plugin '*765C23FCC8127A2234DBCFB6E5207D82ED86264E' is not loaded
at org.apache.naming.NamingContext.lookup(NamingContext.java:859)
...
at org.apache.naming.SelectorContext.lookup(SelectorContext.java:156)
at javax.naming.InitialContext.lookup(InitialContext.java:417)
at org.quartz.utils.JNDIConnectionProvider.init(JNDIConnectionProvider.java:124)
at org.quartz.utils.JNDIConnectionProvider.<init>(JNDIConnectionProvider.java:102)
at org.quartz.impl.StdSchedulerFactory.instantiate(StdSchedulerFactory.java:993)
at org.quartz.impl.StdSchedulerFactory.getScheduler(StdSchedulerFactory.java:1519)
at org.quartz.ee.servlet.QuartzInitializerListener.contextInitialized(QuartzInitializerListener.java:171)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5016)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5524)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1575)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1565)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
2015-06-06 10:32:05 INFO StdSchedulerFactory:1184 - Using default implementation for ThreadExecutor
2015-06-06 10:32:05 INFO SchedulerSignalerImpl:61 - Initialized Scheduler Signaller of type: class org.quartz.core.SchedulerSignalerImpl
2015-06-06 10:32:05 INFO QuartzScheduler:240 - Quartz Scheduler v.2.2.1 created.
2015-06-06 10:32:05 INFO JobStoreTX:670 - Using thread monitor-based data access locking (synchronization).
2015-06-06 10:32:05 INFO JobStoreTX:59 - JobStoreTX initialized.
2015-06-06 10:32:05 INFO QuartzScheduler:305 - Scheduler meta-data: Quartz Scheduler (v2.2.1) 'mymyScheduler' with instanceId 'NON_CLUSTERED'
Scheduler class: 'org.quartz.core.QuartzScheduler' - running locally.
NOT STARTED.
Currently in standby mode.
Number of jobs executed: 0
Using thread pool 'org.quartz.simpl.SimpleThreadPool' - with 3 threads.
Using job-store 'org.quartz.impl.jdbcjobstore.JobStoreTX' - which supports persistence. and is not clustered.
2015-06-06 10:32:05 INFO StdSchedulerFactory:1339 - Quartz scheduler 'mymyScheduler' initialized from the specified file : 'quartz.properties' from the class resource path.
2015-06-06 10:32:05 INFO StdSchedulerFactory:1343 - Quartz scheduler version: 2.2.1
2015-06-06 10:32:05 DEBUG SimpleSemaphore:81 - Lock 'TRIGGER_ACCESS' is desired by: localhost-startStop-1
2015-06-06 10:32:05 DEBUG SimpleSemaphore:88 - Lock 'TRIGGER_ACCESS' is being obtained: localhost-startStop-1
2015-06-06 10:32:05 DEBUG SimpleSemaphore:105 - Lock 'TRIGGER_ACCESS' given to: localhost-startStop-1
Jun 06, 2015 10:32:05 AM org.apache.tomcat.jdbc.pool.ConnectionPool init
SEVERE: Unable to create initial connections of pool.
java.sql.SQLException: Plugin '*765C23FCC8127A2234DBCFB6E5207D82ED86264E' is not loaded
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:998)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3835)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3771)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:870)
at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1659)
at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1206)
at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2239)
at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2270)
at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2069)
at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:794)
at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:44)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:389)
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:399)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:325)
at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:278)
at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:182)
at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:701)
at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:635)
at org.apache.tomcat.jdbc.pool.ConnectionPool.init(ConnectionPool.java:486)
at org.apache.tomcat.jdbc.pool.ConnectionPool.<init>(ConnectionPool.java:144)
at org.apache.tomcat.jdbc.pool.DataSourceProxy.pCreatePool(DataSourceProxy.java:116)
at org.apache.tomcat.jdbc.pool.DataSourceProxy.createPool(DataSourceProxy.java:103)
at org.apache.tomcat.jdbc.pool.DataSourceFactory.createDataSource(DataSourceFactory.java:554)
at org.apache.tomcat.jdbc.pool.DataSourceFactory.getObjectInstance(DataSourceFactory.java:242)
at org.apache.naming.factory.ResourceFactory.getObjectInstance(ResourceFactory.java:141)
at javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:321)
at org.apache.naming.NamingContext.lookup(NamingContext.java:842)
...
at org.apache.naming.SelectorContext.lookup(SelectorContext.java:156)
at javax.naming.InitialContext.lookup(InitialContext.java:417)
at org.quartz.utils.JNDIConnectionProvider.getConnection(JNDIConnectionProvider.java:144)
at org.quartz.utils.DBConnectionManager.getConnection(DBConnectionManager.java:108)
at org.quartz.impl.jdbcjobstore.JobStoreSupport.getConnection(JobStoreSupport.java:775)
at org.quartz.impl.jdbcjobstore.JobStoreTX.getNonManagedTXConnection(JobStoreTX.java:71)
at org.quartz.impl.jdbcjobstore.JobStoreSupport.executeInNonManagedTXLock(JobStoreSupport.java:3784)
at org.quartz.impl.jdbcjobstore.JobStoreSupport.recoverJobs(JobStoreSupport.java:834)
at org.quartz.impl.jdbcjobstore.JobStoreSupport.schedulerStarted(JobStoreSupport.java:690)
at org.quartz.core.QuartzScheduler.start(QuartzScheduler.java:567)
at org.quartz.impl.StdScheduler.start(StdScheduler.java:142)
at org.quartz.ee.servlet.QuartzInitializerListener.contextInitialized(QuartzInitializerListener.java:198)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5016)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5524)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1575)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1565)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Jun 06, 2015 10:32:05 AM org.apache.naming.NamingContext lookup
WARNING: Unexpected exception resolving reference
java.sql.SQLException: Plugin '*765C23FCC8127A2234DBCFB6E5207D82ED86264E' is not loaded
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:998)
...
2015-06-06 10:32:05 DEBUG SimpleSemaphore:132 - Lock 'TRIGGER_ACCESS' retuned by: localhost-startStop-1
org.quartz.SchedulerConfigException: Failure occured during job recovery. [See nested exception: org.quartz.JobPersistenceException: Failed to obtain DB connection from data source 'mymy_pool': java.sql.SQLException: Could not retrieve datasource via JNDI url 'java:comp/env/jdbc/mymy_pool' javax.naming.NamingException: Plugin '*765C23FCC8127A2234DBCFB6E5207D82ED86264E' is not loaded [See nested exception: java.sql.SQLException: Could not retrieve datasource via JNDI url 'java:comp/env/jdbc/mymy_pool' javax.naming.NamingException: Plugin '*765C23FCC8127A2234DBCFB6E5207D82ED86264E' is not loaded]]
at org.quartz.impl.jdbcjobstore.JobStoreSupport.schedulerStarted(JobStoreSupport.java:692)
at org.quartz.core.QuartzScheduler.start(QuartzScheduler.java:567)
at org.quartz.impl.StdScheduler.start(StdScheduler.java:142)
at org.quartz.ee.servlet.QuartzInitializerListener.contextInitialized(QuartzInitializerListener.java:198)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5016)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5524)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1575)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1565)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)2015-06-06 10:32:05 ERROR QuartzInitializerListener:232 - Quartz Scheduler failed to initialize: org.quartz.SchedulerConfigException: Failure occured during job recovery. [See nested exception: org.quartz.JobPersistenceException: Failed to obtain DB connection from data source 'mymy_pool': java.sql.SQLException: Could not retrieve datasource via JNDI url 'java:comp/env/jdbc/mymy_pool' javax.naming.NamingException: Plugin '*765C23FCC8127A2234DBCFB6E5207D82ED86264E' is not loaded [See nested exception: java.sql.SQLException: Could not retrieve datasource via JNDI url 'java:comp/env/jdbc/mymy_pool' javax.naming.NamingException: Plugin '*765C23FCC8127A2234DBCFB6E5207D82ED86264E' is not loaded]]
at java.lang.Thread.run(Thread.java:745)
Caused by: org.quartz.JobPersistenceException: Failed to obtain DB connection from data source 'mymy_pool': java.sql.SQLException: Could not retrieve datasource via JNDI url 'java:comp/env/jdbc/mymy_pool' javax.naming.NamingException: Plugin '*765C23FCC8127A2234DBCFB6E5207D82ED86264E' is not loaded [See nested exception: java.sql.SQLException: Could not retrieve datasource via JNDI url 'java:comp/env/jdbc/mymy_pool' javax.naming.NamingException: Plugin '*765C23FCC8127A2234DBCFB6E5207D82ED86264E' is not loaded]
at org.quartz.impl.jdbcjobstore.JobStoreSupport.getConnection(JobStoreSupport.java:778)
at org.quartz.impl.jdbcjobstore.JobStoreTX.getNonManagedTXConnection(JobStoreTX.java:71)
at org.quartz.impl.jdbcjobstore.JobStoreSupport.executeInNonManagedTXLock(JobStoreSupport.java:3784)
at org.quartz.impl.jdbcjobstore.JobStoreSupport.recoverJobs(JobStoreSupport.java:834)
at org.quartz.impl.jdbcjobstore.JobStoreSupport.schedulerStarted(JobStoreSupport.java:690)
... 12 more
Caused by: java.sql.SQLException: Could not retrieve datasource via JNDI url 'java:comp/env/jdbc/mymy_pool' javax.naming.NamingException: Plugin '*765C23FCC8127A2234DBCFB6E5207D82ED86264E' is not loaded
at org.quartz.utils.JNDIConnectionProvider.getConnection(JNDIConnectionProvider.java:163)
at org.quartz.utils.DBConnectionManager.getConnection(DBConnectionManager.java:108)
at org.quartz.impl.jdbcjobstore.JobStoreSupport.getConnection(JobStoreSupport.java:775)
... 16 more
更新：搜索完日志后，我也发现了这个：
2015-06-06T10:29:28.145846Z 0 [Warning] The plugin '*765C23FCC8127A2234DBCFB6E5207D82ED86264E' used to authenticate user 'mymy-services'@'localhost' is not loaded. Nobody can currently login using this account.
（这* 765C ... 64E似乎是C指针的字符串表示）
答案 0 :(得分：3)
原因是（为什么曾经）在表mysql.users中使用认证字符串＆＃34; * 765c ... 64E＆＃34;在该领域＆＃34;插件＆＃34;而不是在现场＆＃34; authentication_string＆＃34;为用户＆＃34; mymy-services＆＃34;。
字段＆＃34; authentication_string＆＃34;是空的。所以我重新创建了用户，一切都很好。
这是怎么发生的......没有人知道。也许它与5.6和5.7.7有关并从5.6升级。但我对此表示怀疑，因为我觉得它在更新后有效......