question Re: Cloudera scm server start failed in Support Questions

question Re: Cloudera scm server start failed in Support Questions https://community.cloudera.com/t5/Support-Questions/Cloudera-scm-server-start-failed/m-p/85419#M39168 <P>Hello,</P><P> </P><P>According to the error information it appears as though you are attempting to use mySQL as a database backend. The stack trace reports the the mySQL JDBC driver cannot be located or loaded.</P><P> </P><P> </P><PRE>HHH010003: JDBC Driver class not found: com.mysql.jdbc.Driver<BR />...<BR /><SPAN>Caused by: java.lang.ClassNotFoundException: Could not load requested class : com.mysql.jdbc.Driver</SPAN></PRE><P><SPAN>Please review the following documentation.</SPAN></P><P> </P><P><SPAN><A href="https://www.cloudera.com/documentation/enterprise/6/6.1/topics/cm_ig_mysql.html#cmig_topic_5_5_3" target="_blank">https://www.cloudera.com/documentation/enterprise/6/6.1/topics/cm_ig_mysql.html#cmig_topic_5_5_3</A></SPAN></P><P> </P> Thu, 24 Jan 2019 16:13:01 GMT lhebert 2019-01-24T16:13:01Z Cloudera scm server start failed https://community.cloudera.com/t5/Support-Questions/Cloudera-scm-server-start-failed/m-p/85329#M39167 <P> </P><P>when I run the command service cloudera-scm-server start</P><P>Shows failed </P><P>Urgent help needed  as I have stuck with issue since last 2 days</P><P> </P><P>org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)</P><P>        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425)</P><P>        at com.cloudera.server.cmf.Main.bootstrapSpringContext(Main.java:392)</P><P>        at com.cloudera.server.cmf.Main.<init>(Main.java:242)</P><P>        at com.cloudera.server.cmf.Main.main(Main.java:216)</P><P>Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactoryBean': FactoryBean threw exception on object creation; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: cmf.server] Unable to build EntityManagerFactory</P><P>        at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:149)</P><P>        at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:102)</P><P>        at org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1440)</P><P>        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:247)</P><P>        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:192)</P><P>        at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:322)</P><P>        ... 17 more</P><P>Caused by: javax.persistence.PersistenceException: [PersistenceUnit: cmf.server] Unable to build EntityManagerFactory</P><P>        at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:924)</P><P>        at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:899)</P><P>        at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:59)</P><P>        at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:63)</P><P>        at com.cloudera.enterprise.CommonMain.setupHibernate(CommonMain.java:183)</P><P>        at com.cloudera.server.cmf.bootstrap.EntityManagerFactoryBean.getObject(EntityManagerFactoryBean.java:114)</P><P>        at com.cloudera.server.cmf.bootstrap.EntityManagerFactoryBean.getObject(EntityManagerFactoryBean.java:65)</P><P>        at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:142)</P><P>        ... 22 more</P><P> </P><P> </P><P> </P><P> </P><P> </P><P> </P><P>tail -n50 /var/log/cloudera-scm-server/cloudera-scm-server.out</P><P>        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)</P><P>        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425)</P><P>        at com.cloudera.server.cmf.Main.bootstrapSpringContext(Main.java:392)</P><P>        at com.cloudera.server.cmf.Main.<init>(Main.java:242)</P><P>        at com.cloudera.server.cmf.Main.main(Main.java:216)</P><P>Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactoryBean': FactoryBean threw exception on object creation; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: cmf.server] Unable to build EntityManagerFactory</P><P>        at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:149)</P><P>        at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:102)</P><P>        at org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1440)</P><P>        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:247)</P><P>        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:192)</P><P>        at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:322)</P><P>        ... 17 more</P><P>Caused by: javax.persistence.PersistenceException: [PersistenceUnit: cmf.server] Unable to build EntityManagerFactory</P><P>        at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:924)</P><P>        at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:899)</P><P>        at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:59)</P><P>        at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:63)</P><P>        at com.cloudera.enterprise.CommonMain.setupHibernate(CommonMain.java:183)</P><P>        at com.cloudera.server.cmf.bootstrap.EntityManagerFactoryBean.getObject(EntityManagerFactoryBean.java:114)</P><P>        at com.cloudera.server.cmf.bootstrap.EntityManagerFactoryBean.getObject(EntityManagerFactoryBean.java:65)</P><P>        at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:142)</P><P>        ... 22 more</P><P>Caused by: org.hibernate.service.classloading.spi.ClassLoadingException: HHH010003: JDBC Driver class not found: com.mysql.jdbc.Driver</P><P>        at org.hibernate.service.jdbc.connections.internal.C3P0ConnectionProvider.configure(C3P0ConnectionProvider.java:142)</P><P>        at org.hibernate.service.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:75)</P><P>        at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:159)</P><P>        at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:131)</P><P>        at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.buildJdbcConnectionAccess(JdbcServicesImpl.java:223)</P><P>        at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:89)</P><P>        at org.hibernate.service.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:75)</P><P>        at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:159)</P><P>        at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:131)</P><P>        at org.hibernate.cfg.Configuration.buildTypeRegistrations(Configuration.java:1797)</P><P>        at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1755)</P><P>        at org.hibernate.ejb.EntityManagerFactoryImpl.<init>(EntityManagerFactoryImpl.java:96)</P><P>        at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:914)</P><P>        ... 29 more</P><P>Caused by: org.hibernate.service.classloading.spi.ClassLoadingException: Unable to load class [com.mysql.jdbc.Driver]</P><P>        at org.hibernate.service.classloading.internal.ClassLoaderServiceImpl.classForName(ClassLoaderServiceImpl.java:149)</P><P>        at org.hibernate.service.jdbc.connections.internal.C3P0ConnectionProvider.configure(C3P0ConnectionProvider.java:139)</P><P>        ... 41 more</P><P>Caused by: java.lang.ClassNotFoundException: Could not load requested class : com.mysql.jdbc.Driver</P><P>        at org.hibernate.service.classloading.internal.ClassLoaderServiceImpl$AggregatedClassLoader.findClass(ClassLoaderServiceImpl.java:296)</P><P>        at java.lang.ClassLoader.loadClass(ClassLoader.java:424)</P><P>        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)</P><P>        at java.lang.Class.forName0(Native Method)</P><P>        at java.lang.Class.forName(Class.java:348)</P><P>        at org.hibernate.service.classloading.internal.ClassLoaderServiceImpl.classForName(ClassLoaderServiceImpl.java:146)</P><P>        ... 42 more</P> Wed, 23 Jan 2019 16:37:15 GMT https://community.cloudera.com/t5/Support-Questions/Cloudera-scm-server-start-failed/m-p/85329#M39167 sam_001 2019-01-23T16:37:15Z Re: Cloudera scm server start failed https://community.cloudera.com/t5/Support-Questions/Cloudera-scm-server-start-failed/m-p/85419#M39168 <P>Hello,</P><P> </P><P>According to the error information it appears as though you are attempting to use mySQL as a database backend. The stack trace reports the the mySQL JDBC driver cannot be located or loaded.</P><P> </P><P> </P><PRE>HHH010003: JDBC Driver class not found: com.mysql.jdbc.Driver<BR />...<BR /><SPAN>Caused by: java.lang.ClassNotFoundException: Could not load requested class : com.mysql.jdbc.Driver</SPAN></PRE><P><SPAN>Please review the following documentation.</SPAN></P><P> </P><P><SPAN><A href="https://www.cloudera.com/documentation/enterprise/6/6.1/topics/cm_ig_mysql.html#cmig_topic_5_5_3" target="_blank">https://www.cloudera.com/documentation/enterprise/6/6.1/topics/cm_ig_mysql.html#cmig_topic_5_5_3</A></SPAN></P><P> </P> Thu, 24 Jan 2019 16:13:01 GMT https://community.cloudera.com/t5/Support-Questions/Cloudera-scm-server-start-failed/m-p/85419#M39168 lhebert 2019-01-24T16:13:01Z Re: Cloudera scm server start failed https://community.cloudera.com/t5/Support-Questions/Cloudera-scm-server-start-failed/m-p/85435#M39169 <P>Hello Ihebert,</P><P> </P><P>I found the solution I forgot to give permissions to Mysql java connector jar file</P> Thu, 24 Jan 2019 20:34:23 GMT https://community.cloudera.com/t5/Support-Questions/Cloudera-scm-server-start-failed/m-p/85435#M39169 sam_001 2019-01-24T20:34:23Z