i am building a new server and trying to get an existing app running on tomcat 8
when i try to start tomcat i tail out catalina.out
i just get this generic exception.
I am looking for how to increase the logging level or other suggestions on how to get better debug information catalina.out ( the top layer of the exception)
9-Nov-2018 01:39:48.261 SEVERE [localhost-startStop-1] org.apache.catalina.core.ContainerBase.addChildInternal ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:724) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:700) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734) at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:596) at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1805) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745)
this is the other part of the exception
9-Nov-2018 01:39:48.266 SEVERE [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDescriptor Error deploying configuration descriptor /opt/java/apache-tomcat-8.5.6/conf/Catalina/localhost/ROOT.xml java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[]] at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:728) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:700) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734) at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:596) at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1805) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745)
thanks