英文:
Tomcat application failed to start even if war looks good
问题
当我在Tomcat服务器上使用Tomcat管理器部署我的应用程序时，我触发了一个新的异常，前几天发生的。在Tomcat错误日志中没有明确的异常信息，它只是显示（抱歉，是法语）
ECHEC - L'application pour le chemin de contexte [/api] n'a pas pu être démarrée
ECHEC - L'exception [org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/api]]] a été rencontrée
我的应用程序（以及war文件）是有效的（在其他服务器上运行以及在我的开发工作站上运行）。
当我在Jenkins中使用构建过程部署时，错误不再明确，它显示
ERROR: Build step failed with exception
org.codehaus.cargo.container.ContainerException: Failed to deploy [/var/jenkins_home/workspace/XXX/target/api-1.8.0.war]
at org.codehaus.cargo.container.tomcat.internal.AbstractTomcatManagerDeployer.deploy(AbstractTomcatManagerDeployer.java:104)
at org.codehaus.cargo.container.tomcat.internal.AbstractTomcatManagerDeployer.redeploy(AbstractTomcatManagerDeployer.java:180)
at hudson.plugins.deploy.CargoContainerAdapter.deploy(CargoContainerAdapter.java:81)
...
Caused by: org.codehaus.cargo.container.tomcat.internal.TomcatManagerException: The Tomcat Manager responded "FAIL - Deployed application at context path [/api] but context failed to start
" instead of the expected "OK" message
at org.codehaus.cargo.container.tomcat.internal.TomcatManager.invoke(TomcatManager.java:721)
...
Build step 'Deploy war/ear to a container' marked build as failure
我唯一找到的线索在catalina.out日志中：
06-Aug-2020 11:50:16.185 WARNING [http-nio-8080-exec-43] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc The web application [api] registered the JDBC driver [org.postgresql.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
06-Aug-2020 11:50:16.319 WARNING [http-nio-8080-exec-43] org.apache.tomcat.util.descriptor.web.WebXml.setVersion Unknown version string [4.0]. Default version will be used.
我已经尝试删除war文件和webapp目录，重启Tomcat，但没有效果。
英文:
When I'm deploying my application on Tomcat Server with tomcat manager, I trigger new exception for a few ago.
There are no explicit exceptions on Tomcat error: it only says (sorry in french)
ECHEC - L'application pour le chemin de contexte [/api] n'a pas pu être démarrée
ECHEC - L'exception [org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/api]]] a été rencontrée
My application (and the war) is valid (running on other servers and on my dev workstation).
When I deploy with build process in jenkins, error is no more explicit
ERROR: Build step failed with exception
org.codehaus.cargo.container.ContainerException: Failed to deploy [/var/jenkins_home/workspace/XXX/target/api-1.8.0.war]
at org.codehaus.cargo.container.tomcat.internal.AbstractTomcatManagerDeployer.deploy(AbstractTomcatManagerDeployer.java:104)
at org.codehaus.cargo.container.tomcat.internal.AbstractTomcatManagerDeployer.redeploy(AbstractTomcatManagerDeployer.java:180)
at hudson.plugins.deploy.CargoContainerAdapter.deploy(CargoContainerAdapter.java:81)
at hudson.plugins.deploy.CargoContainerAdapter$DeployCallable.invoke(CargoContainerAdapter.java:167)
at hudson.plugins.deploy.CargoContainerAdapter$DeployCallable.invoke(CargoContainerAdapter.java:136)
at hudson.FilePath.act(FilePath.java:1075)
at hudson.FilePath.act(FilePath.java:1058)
at hudson.plugins.deploy.CargoContainerAdapter.redeployFile(CargoContainerAdapter.java:133)
at hudson.plugins.deploy.PasswordProtectedAdapterCargo.redeployFile(PasswordProtectedAdapterCargo.java:95)
at hudson.plugins.deploy.DeployPublisher.perform(DeployPublisher.java:113)
at hudson.tasks.BuildStepCompatibilityLayer.perform(BuildStepCompatibilityLayer.java:78)
at hudson.tasks.BuildStepMonitor$3.perform(BuildStepMonitor.java:45)
at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:741)
at hudson.model.AbstractBuild$AbstractBuildExecution.performAllBuildSteps(AbstractBuild.java:690)
at hudson.model.Build$BuildExecution.post2(Build.java:186)
at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:635)
at hudson.model.Run.execute(Run.java:1905)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
at hudson.model.ResourceController.execute(ResourceController.java:97)
at hudson.model.Executor.run(Executor.java:428)
Caused by: org.codehaus.cargo.container.tomcat.internal.TomcatManagerException: The Tomcat Manager responded "FAIL - Deployed application at context path [/api] but context failed to start
" instead of the expected "OK" message
at org.codehaus.cargo.container.tomcat.internal.TomcatManager.invoke(TomcatManager.java:721)
at org.codehaus.cargo.container.tomcat.internal.TomcatManager.deployImpl(TomcatManager.java:767)
at org.codehaus.cargo.container.tomcat.internal.TomcatManager.deploy(TomcatManager.java:312)
at org.codehaus.cargo.container.tomcat.internal.AbstractTomcatManagerDeployer.deploy(AbstractTomcatManagerDeployer.java:99)
... 19 more
org.codehaus.cargo.container.tomcat.internal.TomcatManagerException: The Tomcat Manager responded "FAIL - Deployed application at context path [/api] but context failed to start
" instead of the expected "OK" message
at org.codehaus.cargo.container.tomcat.internal.TomcatManager.invoke(TomcatManager.java:721)
at org.codehaus.cargo.container.tomcat.internal.TomcatManager.deployImpl(TomcatManager.java:767)
at org.codehaus.cargo.container.tomcat.internal.TomcatManager.deploy(TomcatManager.java:312)
at org.codehaus.cargo.container.tomcat.internal.AbstractTomcatManagerDeployer.deploy(AbstractTomcatManagerDeployer.java:99)
at org.codehaus.cargo.container.tomcat.internal.AbstractTomcatManagerDeployer.redeploy(AbstractTomcatManagerDeployer.java:180)
at hudson.plugins.deploy.CargoContainerAdapter.deploy(CargoContainerAdapter.java:81)
at hudson.plugins.deploy.CargoContainerAdapter$DeployCallable.invoke(CargoContainerAdapter.java:167)
at hudson.plugins.deploy.CargoContainerAdapter$DeployCallable.invoke(CargoContainerAdapter.java:136)
at hudson.FilePath.act(FilePath.java:1075)
at hudson.FilePath.act(FilePath.java:1058)
at hudson.plugins.deploy.CargoContainerAdapter.redeployFile(CargoContainerAdapter.java:133)
at hudson.plugins.deploy.PasswordProtectedAdapterCargo.redeployFile(PasswordProtectedAdapterCargo.java:95)
at hudson.plugins.deploy.DeployPublisher.perform(DeployPublisher.java:113)
at hudson.tasks.BuildStepCompatibilityLayer.perform(BuildStepCompatibilityLayer.java:78)
at hudson.tasks.BuildStepMonitor$3.perform(BuildStepMonitor.java:45)
at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:741)
at hudson.model.AbstractBuild$AbstractBuildExecution.performAllBuildSteps(AbstractBuild.java:690)
at hudson.model.Build$BuildExecution.post2(Build.java:186)
at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:635)
at hudson.model.Run.execute(Run.java:1905)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
at hudson.model.ResourceController.execute(ResourceController.java:97)
at hudson.model.Executor.run(Executor.java:428)
Build step 'Deploy war/ear to a container' marked build as failure
The only clue I found is in catalina.out log :
06-Aug-2020 11:50:16.185 WARNING [http-nio-8080-exec-43] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc The web application [api] registered the JDBC driver [org.postgresql.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
06-Aug-2020 11:50:16.319 WARNING [http-nio-8080-exec-43] org.apache.tomcat.util.descriptor.web.WebXml.setVersion Unknown version string [4.0]. Default version will be used.
I've tried to remove war and webapp dir, restarting tomcat, nothing works
答案1
得分: 1
实际上，最终出现了一些日志 
我使用 tomcat-manager。
而日志也位于 /usr/local/tomcat/logs/manager.log。
所以我的问题出在 Spring Boot Launcher，我的 flyway 引发了关于数据库迁移的异常。
英文:
Actually, there was finally some logs
I use tomcat-manager.
And logs were also in /usr/local/tomcat/logs/manager.log
So my problem was on Sprint Boot Launcher, my flyway was triggering an exception about DB migration.
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