我已经和Heroku工作了一段时间但最近我进行了部署，服务器在启动过程后崩溃，我认为这是我在我的应用程序上所做的更改但是当我做回滚时它也崩溃了一个稳定的版本。此外，我在Heroku中还有其他应用程序，但它们运行良好。
这是我从Heroku获得的日志：
2017-11-02T16:28:51.000000+00:00 app[api]: Build started by user jrocha@tequilasoft.mx
2017-11-02T16:29:08.194071+00:00 app[api]: Deploy by user jrocha@tequilasoft.mx
2017-11-02T16:29:08.194071+00:00 app[api]: Release v6 created by user jrocha@tequilasoft.mx
2017-11-02T16:28:51.000000+00:00 app[api]: Build succeeded
2017-11-02T16:29:13.788934+00:00 heroku[web.1]: Restarting
2017-11-02T16:29:13.789643+00:00 heroku[web.1]: State changed from up to starting
2017-11-02T16:29:14.634283+00:00 heroku[web.1]: Stopping all processes with SIGTERM
2017-11-02T16:29:15.859033+00:00 heroku[web.1]: Process exited with status 143
2017-11-02T16:29:18.152572+00:00 heroku[web.1]: Starting process with command `java $JAVA_OPTS -jar webapp-runner.jar ${WEBAPP_RUNNER_OPTS} --port 38177 ./Repositorios/projectsgo/moneystartdev/web/app/build/libs/app-1.2.6.war`
2017-11-02T16:29:19.202807+00:00 app[web.1]: Setting JAVA_TOOL_OPTIONS defaults based on dyno size. Custom settings will override them.
2017-11-02T16:29:19.205864+00:00 app[web.1]: Picked up JAVA_TOOL_OPTIONS: -Xmx300m -Xss512k -Dfile.encoding=UTF-8
2017-11-02T16:29:19.887554+00:00 app[web.1]: Expanding app-1.2.6.war into /app/target/tomcat.38177/webapps/expanded
2017-11-02T16:29:19.887606+00:00 app[web.1]: Adding Context for /app/target/tomcat.38177/webapps/expanded
2017-11-02T16:29:20.142569+00:00 app[web.1]: Nov 02, 2017 4:29:20 PM org.apache.coyote.AbstractProtocol init
2017-11-02T16:29:20.142576+00:00 app[web.1]: INFO: Initializing ProtocolHandler ["http-nio-38177"]
2017-11-02T16:29:20.170104+00:00 app[web.1]: INFO: Starting service [Tomcat]
2017-11-02T16:29:20.166867+00:00 app[web.1]: Nov 02, 2017 4:29:20 PM org.apache.tomcat.util.net.NioSelectorPool getSharedSelector
2017-11-02T16:29:20.166871+00:00 app[web.1]: INFO: Using a shared selector for servlet write/read
2017-11-02T16:29:20.170103+00:00 app[web.1]: Nov 02, 2017 4:29:20 PM org.apache.catalina.core.StandardService startInternal
2017-11-02T16:29:20.171005+00:00 app[web.1]: Nov 02, 2017 4:29:20 PM org.apache.catalina.core.StandardEngine startInternal
2017-11-02T16:29:20.171007+00:00 app[web.1]: INFO: Starting Servlet Engine: Apache Tomcat/8.5.23
2017-11-02T16:29:20.227889+00:00 heroku[web.1]: State changed from starting to up
2017-11-02T16:29:20.399096+00:00 app[web.1]: Nov 02, 2017 4:29:20 PM org.apache.catalina.startup.ContextConfig getDefaultWebXmlFragment
2017-11-02T16:29:20.399104+00:00 app[web.1]: INFO: No global web.xml found
2017-11-02T16:29:24.382001+00:00 app[web.1]: Nov 02, 2017 4:29:24 PM org.apache.jasper.servlet.TldScanner scanJars
2017-11-02T16:29:24.382017+00:00 app[web.1]: INFO: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
2017-11-02T16:29:25.980976+00:00 app[web.1]: Nov 02, 2017 4:29:25 PM org.apache.catalina.core.ApplicationContext log
2017-11-02T16:29:25.980984+00:00 app[web.1]: INFO: 2 Spring WebApplicationInitializers detected on classpath
2017-11-02T16:29:30.453446+00:00 app[web.1]:
2017-11-02T16:29:30.453468+00:00 app[web.1]: Configuring Spring Security Core ...
2017-11-02T16:29:30.548792+00:00 app[web.1]: ... finished configuring Spring Security Core
2017-11-02T16:29:30.548803+00:00 app[web.1]:
2017-11-02T16:29:30.632911+00:00 app[web.1]:
2017-11-02T16:29:30.632914+00:00 app[web.1]: Configuring Spring Security REST 2.0.0.M2...
2017-11-02T16:29:30.665305+00:00 app[web.1]: ... finished configuring Spring Security REST
2017-11-02T16:29:30.665311+00:00 app[web.1]:
2017-11-02T16:29:30.666267+00:00 app[web.1]: ... with GORM support
2017-11-02T16:29:31.818325+00:00 app[web.1]: Thu Nov 02 16:29:31 UTC 2017 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification.
2017-11-02T16:29:32.108887+00:00 app[web.1]: Thu Nov 02 16:29:32 UTC 2017 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification.
2017-11-02T16:29:32.127550+00:00 app[web.1]: Thu Nov 02 16:29:32 UTC 2017 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification.
2017-11-02T16:29:32.143749+00:00 app[web.1]: Thu Nov 02 16:29:32 UTC 2017 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification.
2017-11-02T16:29:32.162251+00:00 app[web.1]: Thu Nov 02 16:29:32 UTC 2017 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification.
2017-11-02T16:29:43.492539+00:00 app[web.1]: 2017-11-02 16:29:43.487 ERROR --- [ost-startStop-1] o.s.boot.SpringApplication : Application startup failed
2017-11-02T16:29:43.492549+00:00 app[web.1]:
2017-11-02T16:29:43.492550+00:00 app[web.1]: java.lang.NullPointerException: null
2017-11-02T16:29:43.492551+00:00 app[web.1]: at org.hibernate.type.descriptor.java.AbstractTypeDescriptor.extractHashCode(AbstractTypeDescriptor.java:65)
2017-11-02T16:29:43.492552+00:00 app[web.1]: at org.hibernate.type.AbstractStandardBasicType.getHashCode(AbstractStandardBasicType.java:185)
2017-11-02T16:29:43.492553+00:00 app[web.1]: at org.hibernate.type.AbstractStandardBasicType.getHashCode(AbstractStandardBasicType.java:189)
2017-11-02T16:29:43.492556+00:00 app[web.1]: at org.hibernate.type.EntityType.getHashCode(EntityType.java:355)
2017-11-02T16:29:43.492557+00:00 app[web.1]: at org.hibernate.type.ComponentType.getHashCode(ComponentType.java:241)
2017-11-02T16:29:43.492557+00:00 app[web.1]: at org.hibernate.engine.spi.EntityKey.generateHashCode(EntityKey.java:59)
2017-11-02T16:29:43.492558+00:00 app[web.1]: at org.hibernate.engine.spi.EntityKey.<init>(EntityKey.java:54)
2017-11-02T16:29:43.492559+00:00 app[web.1]: at org.hibernate.internal.AbstractSessionImpl.generateEntityKey(AbstractSessionImpl.java:338)
2017-11-02T16:29:43.492560+00:00 app[web.1]: at org.hibernate.engine.internal.StatefulPersistenceContext.getDatabaseSnapshot(StatefulPersistenceContext.java:308)
2017-11-02T16:29:43.492560+00:00 app[web.1]: at org.hibernate.engine.internal.ForeignKeys.isTransient(ForeignKeys.java:238)
2017-11-02T16:29:43.492561+00:00 app[web.1]: at org.hibernate.event.internal.AbstractSaveEventListener.getEntityState(AbstractSaveEventListener.java:499)
2017-11-02T16:29:43.492562+00:00 app[web.1]: at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:83)
2017-11-02T16:29:43.492562+00:00 app[web.1]: at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:73)
2017-11-02T16:29:43.492563+00:00 app[web.1]: at org.grails.orm.hibernate.support.ClosureEventTriggeringInterceptor.onSaveOrUpdate(ClosureEventTriggeringInterceptor.java:126)
2017-11-02T16:29:43.492564+00:00 app[web.1]: at org.hibernate.internal.SessionImpl.fireSaveOrUpdate(SessionImpl.java:651)
2017-11-02T16:29:43.492565+00:00 app[web.1]: at org.hibernate.internal.SessionImpl.saveOrUpdate(SessionImpl.java:643)
2017-11-02T16:29:43.492565+00:00 app[web.1]: at org.hibernate.internal.SessionImpl.saveOrUpdate(SessionImpl.java:638)
2017-11-02T16:29:43.492566+00:00 app[web.1]: at org.grails.orm.hibernate.AbstractHibernateGormInstanceApi$_performSave_closure3.doCall(AbstractHibernateGormInstanceApi.groovy:243)
2017-11-02T16:29:43.492567+00:00 app[web.1]: at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
2017-11-02T16:29:43.492568+00:00 app[web.1]: at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
2017-11-02T16:29:43.492569+00:00 app[web.1]: at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
2017-11-02T16:29:43.492569+00:00 app[web.1]: at java.lang.reflect.Method.invoke(Method.java:498)
2017-11-02T16:29:43.492570+00:00 app[web.1]: at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)
2017-11-02T16:29:43.492570+00:00 app[web.1]: at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
2017-11-02T16:29:43.492571+00:00 app[web.1]: at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:294)
2017-11-02T16:29:43.492572+00:00 app[web.1]: at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1022)
2017-11-02T16:29:43.492572+00:00 app[web.1]: at groovy.lang.Closure.call(Closure.java:414)
2017-11-02T16:29:43.492573+00:00 app[web.1]: at org.codehaus.groovy.runtime.ConvertedClosure.invokeCustom(ConvertedClosure.java:54)
2017-11-02T16:29:43.492574+00:00 app[web.1]: at org.codehaus.groovy.runtime.ConversionHandler.invoke(ConversionHandler.java:124)
2017-11-02T16:29:43.492575+00:00 app[web.1]: at com.sun.proxy.$Proxy100.doInHibernate(Unknown Source)
2017-11-02T16:29:43.492576+00:00 app[web.1]: at org.grails.orm.hibernate.GrailsHibernateTemplate.doExecute(GrailsHibernateTemplate.java:298)
2017-11-02T16:29:43.492576+00:00 app[web.1]: at org.grails.orm.hibernate.GrailsHibernateTemplate.execute(GrailsHibernateTemplate.java:242)
2017-11-02T16:29:43.492577+00:00 app[web.1]: at org.grails.orm.hibernate.GrailsHibernateTemplate.execute(GrailsHibernateTemplate.java:116)
2017-11-02T16:29:43.492577+00:00 app[web.1]: at org.grails.orm.hibernate.AbstractHibernateGormInstanceApi.performSave(AbstractHibernateGormInstanceApi.groovy:242)
2017-11-02T16:29:43.492578+00:00 app[web.1]: at org.grails.orm.hibernate.AbstractHibernateGormInstanceApi.save(AbstractHibernateGormInstanceApi.groovy:159)
2017-11-02T16:29:43.492579+00:00 app[web.1]: at org.grails.datastore.gorm.GormInstanceApi.save(GormInstanceApi.groovy:118)
2017-11-02T16:29:43.492580+00:00 app[web.1]: at org.grails.datastore.gorm.GormEntity$Trait$Helper.save(GormEntity.groovy:98)
2017-11-02T16:29:43.492580+00:00 app[web.1]: at com.app.UserRole.save(UserRole.groovy)
2017-11-02T16:29:43.492581+00:00 app[web.1]: at com.app.UserRole.save(UserRole.groovy)
2017-11-02T16:29:43.492582+00:00 app[web.1]: at org.grails.datastore.gorm.GormEntity$save.call(Unknown Source)
2017-11-02T16:29:43.492582+00:00 app[web.1]: at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
2017-11-02T16:29:43.492583+00:00 app[web.1]: at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113)
2017-11-02T16:29:43.492584+00:00 app[web.1]: at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:117)
2017-11-02T16:29:43.492584+00:00 app[web.1]: at app.BootStrap$_closure1.doCall(BootStrap.groovy:155)
2017-11-02T16:29:43.492585+00:00 app[web.1]: at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
2017-11-02T16:29:43.492585+00:00 app[web.1]: at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
2017-11-02T16:29:43.492591+00:00 app[web.1]: at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
2017-11-02T16:29:43.492592+00:00 app[web.1]: at java.lang.reflect.Method.invoke(Method.java:498)
2017-11-02T16:29:43.492593+00:00 app[web.1]: at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)
2017-11-02T16:29:43.492593+00:00 app[web.1]: at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
2017-11-02T16:29:43.492594+00:00 app[web.1]: at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:294)
2017-11-02T16:29:43.492595+00:00 app[web.1]: at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1022)
2017-11-02T16:29:43.492596+00:00 app[web.1]: at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1087)
2017-11-02T16:29:43.492596+00:00 app[web.1]: at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1022)
2017-11-02T16:29:43.492597+00:00 app[web.1]: at groovy.lang.Closure.call(Closure.java:414)
2017-11-02T16:29:43.492598+00:00 app[web.1]: at groovy.lang.Closure.call(Closure.java:408)
2017-11-02T16:29:43.492598+00:00 app[web.1]: at grails.util.Environment.evaluateEnvironmentSpecificBlock(Environment.java:535)
2017-11-02T16:29:43.492599+00:00 app[web.1]: at grails.util.Environment.executeForEnvironment(Environment.java:528)
2017-11-02T16:29:43.492600+00:00 app[web.1]: at grails.util.Environment.executeForCurrentEnvironment(Environment.java:504)
2017-11-02T16:29:43.492601+00:00 app[web.1]: at org.grails.web.servlet.boostrap.DefaultGrailsBootstrapClass.callInit(DefaultGrailsBootstrapClass.java:74)
2017-11-02T16:29:43.492601+00:00 app[web.1]: at org.grails.web.servlet.context.GrailsConfigUtils.executeGrailsBootstraps(GrailsConfigUtils.java:65)
2017-11-02T16:29:43.492602+00:00 app[web.1]: at org.grails.plugins.web.servlet.context.BootStrapClassRunner.onStartup(BootStrapClassRunner.groovy:53)
2017-11-02T16:29:43.492603+00:00 app[web.1]: at grails.boot.config.GrailsApplicationPostProcessor.onApplicationEvent(GrailsApplicationPostProcessor.groovy:261)
2017-11-02T16:29:43.492604+00:00 app[web.1]: at grails.boot.config.GrailsApplicationPostProcessor.onApplicationEvent(GrailsApplicationPostProcessor.groovy)
2017-11-02T16:29:43.492605+00:00 app[web.1]: at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:167)
2017-11-02T16:29:43.492605+00:00 app[web.1]: at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)
2017-11-02T16:29:43.492606+00:00 app[web.1]: at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:393)
2017-11-02T16:29:43.492607+00:00 app[web.1]: at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:347)
2017-11-02T16:29:43.492608+00:00 app[web.1]: at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:883)
2017-11-02T16:29:43.492608+00:00 app[web.1]: at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.finishRefresh(EmbeddedWebApplicationContext.java:144)
2017-11-02T16:29:43.492609+00:00 app[web.1]: at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:546)
2017-11-02T16:29:43.492610+00:00 app[web.1]: at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122)
2017-11-02T16:29:43.492611+00:00 app[web.1]: at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693)
2017-11-02T16:29:43.492611+00:00 app[web.1]: at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360)
2017-11-02T16:29:43.492612+00:00 app[web.1]: at org.springframework.boot.SpringApplication.run(SpringApplication.java:303)
2017-11-02T16:29:43.492613+00:00 app[web.1]: at grails.boot.GrailsApp.run(GrailsApp.groovy:83)
2017-11-02T16:29:43.492614+00:00 app[web.1]: at org.springframework.boot.web.support.SpringBootServletInitializer.run(SpringBootServletInitializer.java:151)
2017-11-02T16:29:43.492615+00:00 app[web.1]: at org.grails.boot.context.web.GrailsAppServletInitializer.createRootApplicationContext(GrailsAppServletInitializer.groovy:57)
2017-11-02T16:29:43.492615+00:00 app[web.1]: at org.springframework.boot.web.support.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:86)
2017-11-02T16:29:43.492616+00:00 app[web.1]: at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:169)
2017-11-02T16:29:43.492617+00:00 app[web.1]: at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5196)
2017-11-02T16:29:43.492618+00:00 app[web.1]: at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
2017-11-02T16:29:43.492619+00:00 app[web.1]: at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1419)
2017-11-02T16:29:43.492620+00:00 app[web.1]: at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1409)
2017-11-02T16:29:43.492620+00:00 app[web.1]: at java.util.concurrent.FutureTask.run(FutureTask.java:266)
2017-11-02T16:29:43.492621+00:00 app[web.1]: at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
2017-11-02T16:29:43.492622+00:00 app[web.1]: at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
2017-11-02T16:29:43.492622+00:00 app[web.1]: at java.lang.Thread.run(Thread.java:748)
2017-11-02T16:29:43.492623+00:00 app[web.1]:
2017-11-02T16:29:43.515937+00:00 app[web.1]: Exception in thread "main" org.apache.catalina.LifecycleException: Failed to start component [StandardServer[-1]]
2017-11-02T16:29:43.516002+00:00 app[web.1]: at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167)
2017-11-02T16:29:43.516038+00:00 app[web.1]: at org.apache.catalina.startup.Tomcat.start(Tomcat.java:367)
2017-11-02T16:29:43.516065+00:00 app[web.1]: at webapp.runner.launch.Main.main(Main.java:274)
2017-11-02T16:29:43.516151+00:00 app[web.1]: Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardService[Tomcat]]
2017-11-02T16:29:43.516173+00:00 app[web.1]: at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167)
2017-11-02T16:29:43.516201+00:00 app[web.1]: at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:793)
2017-11-02T16:29:43.516220+00:00 app[web.1]: at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
2017-11-02T16:29:43.516241+00:00 app[web.1]: ... 2 more
2017-11-02T16:29:43.516298+00:00 app[web.1]: Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat]]
2017-11-02T16:29:43.516331+00:00 app[web.1]: at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167)
2017-11-02T16:29:43.516334+00:00 app[web.1]: at org.apache.catalina.core.StandardService.startInternal(StandardService.java:422)
2017-11-02T16:29:43.516353+00:00 app[web.1]: at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
2017-11-02T16:29:43.516375+00:00 app[web.1]: ... 4 more
2017-11-02T16:29:43.516427+00:00 app[web.1]: Caused by: org.apache.catalina.LifecycleException: A child container failed during start
2017-11-02T16:29:43.516473+00:00 app[web.1]: at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:948)
2017-11-02T16:29:43.516504+00:00 app[web.1]: at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262)
2017-11-02T16:29:43.516521+00:00 app[web.1]: at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
2017-11-02T16:29:43.516538+00:00 app[web.1]: ... 6 more
2017-11-02T16:29:43.952804+00:00 heroku[web.1]: State changed from up to crashed
似乎问题出现在application.yml：
中dataSource:
dbCreate: update
url : jdbc:mysql://y2w3wxldca8enczv.cbetxkdyhwsb.us-east-1.rds.amazonaws.com
driverClassName: com.mysql.jdbc.Driver
dialect: org.hibernate.dialect.MySQL5InnoDBDialect
username : mydbusername
password : mydbpassword
properties:
jmxEnabled: true
initialSize: 5
maxActive: 50
minIdle: 5
maxIdle: 25
maxWait: 10000
maxAge: 600000
timeBetweenEvictionRunsMillis: 5000
minEvictableIdleTimeMillis: 60000
validationQuery: SELECT 1
validationQueryTimeout: 3
validationInterval: 15000
testOnBorrow: true
testWhileIdle: true
testOnReturn: false
jdbcInterceptors: ConnectionState
defaultTransactionIsolation: 2 # TRANSACTION_READ_COMMITTED
我删除了此配置并默认保留代码：
dataSource:
dbCreate: create-drop
url: jdbc:h2:mem:devDb;MVCC=TRUE;LOCK_TIMEOUT=10000;DB_CLOSE_ON_EXIT=FALSE
有了这个，应用程序启动良好，但现在我没有连接到我的数据库。