Clouder Manager UI根本无法启动。尝试打开localhost：7180或127.0.0.1:7180，没有任何效果。
背景：
1）在此问题之前，没有更新应用于我的CDH设置。
2）在此问题之前，Cloudera Manager UI运行良好
尝试：
1.检查Cloudera-scm-server状态：
[root @ quickstart cloudera-scm-server]＃服务cloudera-scm-server的状态
cloudera-scm-server死了，但是pid文件存在
2.删除pid为
rm /var/run/cloudera-scm-server.pid
3.尝试停止cloudera-scm-server-db，但出现问题！
[cloudera @ quickstart〜] $ sudo服务cloudera-scm-server-db停止
cloudera-scm-server-db：无法识别的服务
4.线程之一提示postgresql可能未运行，因此我在/etc/rc.d/init.d/中检查了postgresql。但是那里不存在！
[root @ quickstart〜]＃服务postgresql启动
PostgreSQL：无法识别的服务
5.我在/ etc / hosts中检查了环回地址是否缺少127.0.0.1 localhost。但是条目已经在那里。
6.通过以下命令检查端口7180是否正在监听：
netstat -na | grep 7180
But I get no output here.
我检查了/var/log/cloudera-scm-server/cloudera-scm-server.out是否存在问题，出现以下异常：-
JAVA_HOME=/usr/java/jdk1.7.0_67-cloudera
Exception in thread "main" org.springframework.beans.factory.access.BootstrapException: Unable to return specified BeanFactory instance: factory key [rootContext], from group with resource name [classpath:webapp/WEB-INF/spring/beanRefFactory.xml]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'rootContext' defined in class path resource [webapp/WEB-INF/spring/beanRefFactory.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.springframework.context.support.ClassPathXmlApplicationContext]: Constructor threw exception; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'viewFactory' defined in URL [jar:file:/usr/share/cmf/common_jars/server-5.10.0.jar!/com/cloudera/cmon/components/ViewFactory.class]: Unsatisfied dependency expressed through constructor argument with index 0 of type [com.cloudera.cmon.components.PredefinedViews]: : Error creating bean with name 'metricSchemaManagerBean': Invocation of init method failed; nested exception is java.lang.RuntimeException: javax.persistence.PersistenceException: org.hibernate.exception.JDBCConnectionException: Could not open connection; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'metricSchemaManagerBean': Invocation of init method failed; nested exception is java.lang.RuntimeException: javax.persistence.PersistenceException: org.hibernate.exception.JDBCConnectionException: Could not open connection
at org.springframework.beans.factory.access.SingletonBeanFactoryLocator.useBeanFactory(SingletonBeanFactoryLocator.java:409)
at com.cloudera.server.cmf.Main.findBeanFactory(Main.java:450)
at com.cloudera.server.cmf.Main.findRootApplicationContext(Main.java:445)
at com.cloudera.server.cmf.Main.<init>(Main.java:266)
at com.cloudera.server.cmf.Main.main(Main.java:216)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'rootContext' defined in class path resource [webapp/WEB-INF/spring/beanRefFactory.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.springframework.context.support.ClassPathXmlApplicationContext]: Constructor threw exception; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'viewFactory' defined in URL [jar:file:/usr/share/cmf/common_jars/server-5.10.0.jar!/com/cloudera/cmon/components/ViewFactory.class]: Unsatisfied dependency expressed through constructor argument with index 0 of type [com.cloudera.cmon.components.PredefinedViews]: : Error creating bean with name 'metricSchemaManagerBean': Invocation of init method failed; nested exception is java.lang.RuntimeException: javax.persistence.PersistenceException: org.hibernate.exception.JDBCConnectionException: Could not open connection; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'metricSchemaManagerBean': Invocation of init method failed; nested exception is java.lang.RuntimeException: javax.persistence.PersistenceException: org.hibernate.exception.JDBCConnectionException: Could not open connection
at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:288)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1003)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:907)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:485)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:293)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:290)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:196)
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1079)
at org.springframework.beans.factory.access.SingletonBeanFactoryLocator.useBeanFactory(SingletonBeanFactoryLocator.java:397)
... 4 more
Caused by: org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.springframework.context.support.ClassPathXmlApplicationContext]: Constructor threw exception; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'viewFactory' defined in URL [jar:file:/usr/share/cmf/common_jars/server-5.10.0.jar!/com/cloudera/cmon/components/ViewFactory.class]: Unsatisfied dependency expressed through constructor argument with index 0 of type [com.cloudera.cmon.components.PredefinedViews]: : Error creating bean with name 'metricSchemaManagerBean': Invocation of init method failed; nested exception is java.lang.RuntimeException: javax.persistence.PersistenceException: org.hibernate.exception.JDBCConnectionException: Could not open connection; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'metricSchemaManagerBean': Invocation of init method failed; nested exception is java.lang.RuntimeException: javax.persistence.PersistenceException: org.hibernate.exception.JDBCConnectionException: Could not open connection
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:141)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:108)
at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:280)
... 14 more
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'viewFactory' defined in URL [jar:file:/usr/share/cmf/common_jars/server-5.10.0.jar!/com/cloudera/cmon/components/ViewFactory.class]: Unsatisfied dependency expressed through constructor argument with index 0 of type [com.cloudera.cmon.components.PredefinedViews]: : Error creating bean with name 'metricSchemaManagerBean': Invocation of init method failed; nested exception is java.lang.RuntimeException: javax.persistence.PersistenceException: org.hibernate.exception.JDBCConnectionException: Could not open connection; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'metricSchemaManagerBean': Invocation of init method failed; nested exception is java.lang.RuntimeException: javax.persistence.PersistenceException: org.hibernate.exception.JDBCConnectionException: Could not open connection
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:730)
at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:196)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1003)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:907)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:485)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:293)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:290)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:192)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:585)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:105)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:126)
... 16 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'metricSchemaManagerBean': Invocation of init method failed; nested exception is java.lang.RuntimeException: javax.persistence.PersistenceException: org.hibernate.exception.JDBCConnectionException: Could not open connection
at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:133)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:394)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1413)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:293)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:290)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:192)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:283)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:192)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:848)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:790)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:707)
at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:795)
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:723)
... 35 more
Caused by: java.lang.RuntimeException: javax.persistence.PersistenceException: org.hibernate.exception.JDBCConnectionException: Could not open connection
at com.cloudera.cmon.components.MetricSchemaManager.initialize(MetricSchemaManager.java:226)
at com.cloudera.cmon.components.MetricSchemaManager.initialize(MetricSchemaManager.java:106)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:340)
at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeInitMethods(InitDestroyAnnotationBeanPostProcessor.java:293)
at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:130)
... 50 more
Caused by: javax.persistence.PersistenceException: org.hibernate.exception.JDBCConnectionException: Could not open connection
at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1387)
at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1310)
at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:1397)
at org.hibernate.ejb.TransactionImpl.begin(TransactionImpl.java:62)
at com.cloudera.enterprise.AbstractWrappedEntityManager.begin(AbstractWrappedEntityManager.java:69)
at com.cloudera.cmf.persist.CmfEntityManager.begin(CmfEntityManager.java:297)
at com.cloudera.cmf.persist.ReadWriteDatabaseTaskCallable.call(ReadWriteDatabaseTaskCallable.java:35)
at com.cloudera.cmf.persist.DatabaseExecutor.execTask(DatabaseExecutor.java:101)
at com.cloudera.cmf.persist.DatabaseExecutor.execReadWriteTask(DatabaseExecutor.java:66)
at com.cloudera.cmon.components.MetricSchemaManager.initialize(MetricSchemaManager.java:161)
... 58 more
Caused by: org.hibernate.exception.JDBCConnectionException: Could not open connection
at org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:132)
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:49)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:125)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:110)
at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.obtainConnection(LogicalConnectionImpl.java:221)
at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.getConnection(LogicalConnectionImpl.java:157)
at org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.doBegin(JdbcTransaction.java:67)
at org.hibernate.engine.transaction.spi.AbstractTransactionImpl.begin(AbstractTransactionImpl.java:160)
at org.hibernate.internal.SessionImpl.beginTransaction(SessionImpl.java:1426)
at org.hibernate.ejb.TransactionImpl.begin(TransactionImpl.java:59)
... 64 more
Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
The last packet successfully received from the server was 13,018 milliseconds ago. The last packet sent successfully to the server was 1 milliseconds ago.
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
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:377)
at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1036)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3427)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3327)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3814)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2435)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2582)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2526)
at com.mysql.jdbc.ConnectionImpl.setTransactionIsolation(ConnectionImpl.java:5133)
at com.mchange.v2.c3p0.impl.NewProxyConnection.setTransactionIsolation(NewProxyConnection.java:701)
at org.hibernate.service.jdbc.connections.internal.C3P0ConnectionProvider.getConnection(C3P0ConnectionProvider.java:86)
at org.hibernate.internal.AbstractSessionImpl$NonContextualJdbcConnectionAccess.obtainConnection(AbstractSessionImpl.java:292)
at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.obtainConnection(LogicalConnectionImpl.java:214)
... 69 more
Caused by: java.io.EOFException: Can not read response from server. Expected to read 4 bytes, read 0 bytes before connection was unexpectedly lost.
at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:2914)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3337)
... 79 more
我的cloudera quickstart vm的默认数据库是mysql，它也可以正常工作。
再次总结我的问题： Cloudera Manager UI不会启动，也不启动所有Hadoop服务器进程。 该问题的原因是上述异常以及cloudera-scm-server的处理无法继续进行的事实：-
[root @ quickstart cloudera-scm-server]＃服务cloudera-scm-server的状态 cloudera-scm-server死了，但是pid文件存在
此问题的可能原因是什么？为什么突然出现？
请帮忙！