我在 Ubuntu 上安装并运行了 tomcat6。当我复制solr.war到/var/lib/tomcat6/webapps/solr.war时，/solr路径出现在 Tomcat 管理器中。
问题：但是，当我添加solr.xml到时/var/lib/tomcat6/conf/Catalina/localhost/solr.xml，/solr路径在 tomcat 管理器中消失了。调查catalina.out：
WARNING: Problem with directory [/usr/share/tomcat6/server/classes], exists: [false], isDirectory: [false], canRead: [false]
Oct 9, 2012 7:24:16 AM org.apache.catalina.startup.ClassLoaderFactory validateFile
WARNING: Problem with directory [/usr/share/tomcat6/server], exists: [false], isDirectory: [false], canRead: [false]
Oct 9, 2012 7:24:16 AM org.apache.catalina.startup.ClassLoaderFactory validateFile
WARNING: Problem with directory [/usr/share/tomcat6/shared/classes], exists: [false], isDirectory: [false], canRead: [false]
Oct 9, 2012 7:24:16 AM org.apache.catalina.startup.ClassLoaderFactory validateFile
WARNING: Problem with directory [/usr/share/tomcat6/shared], exists: [false], isDirectory: [false], canRead: [false]
Oct 9, 2012 7:24:17 AM org.apache.coyote.http11.Http11Protocol init
INFO: Initializing Coyote HTTP/1.1 on http-8080
Oct 9, 2012 7:24:17 AM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 496 ms
Oct 9, 2012 7:24:17 AM org.apache.catalina.core.StandardService start
INFO: Starting service Catalina
Oct 9, 2012 7:24:17 AM org.apache.catalina.core.StandardEngine start
INFO: Starting Servlet Engine: Apache Tomcat/6.0.35
Oct 9, 2012 7:24:17 AM org.apache.catalina.startup.HostConfig deployDescriptor
INFO: Deploying configuration descriptor host-manager.xml
Oct 9, 2012 7:24:17 AM org.apache.catalina.startup.HostConfig deployDescriptor
INFO: Deploying configuration descriptor manager.xml
Oct 9, 2012 7:24:17 AM org.apache.catalina.startup.HostConfig deployDescriptor
INFO: Deploying configuration descriptor ROOT.xml
Oct 9, 2012 7:24:17 AM org.apache.catalina.startup.HostConfig deployWAR
INFO: Deploying web application archive solr.war
Oct 9, 2012 7:24:17 AM org.apache.catalina.startup.ContextConfig init
SEVERE: Exception fixing docBase for context [/solr]
java.util.zip.ZipException: error in opening zip file
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(ZipFile.java:131)
at java.util.jar.JarFile.<init>(JarFile.java:150)
at java.util.jar.JarFile.<init>(JarFile.java:87)
at sun.net.www.protocol.jar.URLJarFile.<init>(URLJarFile.java:90)
at sun.net.www.protocol.jar.URLJarFile.getJarFile(URLJarFile.java:66)
at sun.net.www.protocol.jar.JarFileFactory.get(JarFileFactory.java:86)
at sun.net.www.protocol.jar.JarURLConnection.connect(JarURLConnection.java:122)
at sun.net.www.protocol.jar.JarURLConnection.getJarFile(JarURLConnection.java:89)
at org.apache.catalina.startup.ExpandWar.expand(ExpandWar.java:148)
at org.apache.catalina.startup.ContextConfig.fixDocBase(ContextConfig.java:886)
at org.apache.catalina.startup.ContextConfig.init(ContextConfig.java:1021)
at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:279)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)
at org.apache.catalina.core.StandardContext.init(StandardContext.java:5707)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4449)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:601)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:943)
at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:778)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:504)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1317)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:324)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1065)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:840)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)
at org.apache.catalina.core.StandardService.start(StandardService.java:525)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:754)
at org.apache.catalina.startup.Catalina.start(Catalina.java:595)
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:616)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Oct 9, 2012 7:24:17 AM org.apache.catalina.core.StandardContext resourcesStart
SEVERE: Error starting static Resources
java.lang.IllegalArgumentException: Invalid or unreadable WAR file : /var/lib/tomcat6/webapps/solr.war
at org.apache.naming.resources.WARDirContext.setDocBase(WARDirContext.java:130)
at org.apache.catalina.core.StandardContext.resourcesStart(StandardContext.java:4320)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4489)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:601)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:943)
at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:778)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:504)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1317)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:324)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1065)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:840)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)
at org.apache.catalina.core.StandardService.start(StandardService.java:525)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:754)
at org.apache.catalina.startup.Catalina.start(Catalina.java:595)
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:616)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Oct 9, 2012 7:24:17 AM org.apache.catalina.core.StandardContext start
SEVERE: Error in resourceStart()
Oct 9, 2012 7:24:17 AM org.apache.catalina.core.StandardContext start
SEVERE: Error getConfigured
Oct 9, 2012 7:24:17 AM org.apache.catalina.core.StandardContext start
SEVERE: Context [/solr] startup failed due to previous errors
Oct 9, 2012 7:24:17 AM org.apache.catalina.core.StandardContext stop
INFO: Container org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/solr] has not been started
Solr.xml
<Context path="/solr" docBase="/usr/share/solr"
debug="0" privileged="true" allowLinking="true" crossContext="true">
<!-- make symlinks work in Tomcat -->
<Resources className="org.apache.naming.resources.FileDirContext" allowLinking="true" />
<Environment name="solr/home" type="java.lang.String" value="/usr/share/solr" override="true" />
</Context>
知道似乎是什么问题吗？谢谢！