Tomcat 多项服务 - 启动问题

Question

我正在尝试使用以下 server.conf 在 Tomcat 中运行两个 BaseX 实例。我遇到了一个奇怪的问题:两者都可以在各自的端口上使用，但是 webapp 本身是同一个 WAR；也就是说，仅在 webapps/WAR 中的链接出现在从 webapps2 加载的 WAR 中。我不太确定下一步应该做什么——我会在 BaseX 邮件列表上询问，但他们在那里使用的 Tomcat 不多。

这是我的 server.conf

<Service name="Catalina">
  <Connector port="8080"
             protocol="HTTP/1.1"
             connectionTimeout="20000"
             redirectPort="8443"/>
  <Connector port="8009" protocol="AJP/1.3" redirectPort="8443"/>
  <Engine name="Catalina" defaultHost="localhost">
     <Realm className="org.apache.catalina.realm.LockOutRealm">
        <Realm className="org.apache.catalina.realm.UserDatabaseRealm"
               resourceName="UserDatabase"/>
     </Realm>
     <Host name="localhost"
           appBase="webapps"
           unpackWARs="true"
           autoDeploy="true">
        <Valve className="org.apache.catalina.valves.AccessLogValve"
               directory="logs"
               prefix="localhost_access_log."
               suffix=".txt"
               pattern="%h %l %u %t &#34;%r&#34; %s %b"/>
     </Host>
  </Engine>
</Service>
<Service name="Catalina2">
  <Connector port="18080"
             protocol="HTTP/1.1"
             connectionTimeout="20000"
             redirectPort="18443"/>
  <Connector port="18009" protocol="AJP/1.3" redirectPort="18443"/>
  <Engine name="Catalina2" defaultHost="localhost">
     <Host name="localhost"
           appBase="webapps2"
           unpackWARS="true"
           autoDeploy="true">
        <Valve className="org.apache.catalina.valves.AccessLogValve"
               directory="logs2"
               prefix="localhost_Cat2_access_log."
               suffix=".txt"
               pattern="%h %l %u %t &amp;quot;%r&amp;quot; %s %b"/>
     </Host>
  </Engine>
</Service>

当我启动 Tomcat 时，除了第二个 BaseX 应用程序之外，两个服务中的所有内容都加载正常。当 Tomcat 开始加载时，出现以下错误:

INFO: Starting service Catalina2
Nov 03, 2014 7:59:58 PM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.53
Nov 03, 2014 7:59:58 PM org.apache.catalina.startup.HostConfig deployWAR
INFO: Deploying web application archive /usr/home/cob/src/apache-tomcat-     7.0.53/webapps2/bX79.war
Nov 03, 2014 7:59:58 PM org.apache.catalina.core.StandardContext loadOnStartup
SEVERE: Servlet /bX79 threw load() exception
  java.net.BindException: Address already in use
  at java.net.PlainSocketImpl.socketBind(Native Method)
  at java.net.AbstractPlainSocketImpl.bind(AbstractPlainSocketImpl.java:376)
  at java.net.ServerSocket.bind(ServerSocket.java:376)
  at java.net.ServerSocket.bind(ServerSocket.java:330)
  at org.basex.BaseXServer.<init>(BaseXServer.java:110)
  at org.basex.http.HTTPContext.init(HTTPContext.java:379)
  at org.basex.http.BaseXServlet.init(BaseXServlet.java:34)
  at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1284)
  at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1197)
  at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1087)
  at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5210)
  at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5493)
  at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
  at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
  at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
  at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:632)
  at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:1073)
  at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1857)
  at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
  at java.util.concurrent.FutureTask.run(FutureTask.java:262)
  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
  at java.lang.Thread.run(Thread.java:745)

Nov 03, 2014 7:59:58 PM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /usr/home/cob/src/apache-tomcat-7.0.53/webapps2/examples
Nov 03, 2014 7:59:59 PM org.apache.catalina.core.ApplicationContext log
INFO: ContextListener: contextInitialized()
Nov 03, 2014 7:59:59 PM org.apache.catalina.core.ApplicationContext log
INFO: SessionListener: contextInitialized()
Nov 03, 2014 7:59:59 PM org.apache.catalina.core.ApplicationContext log
INFO: ContextListener: attributeAdded('org.apache.jasper.compiler.TldLocationsCache', 'org.apache.jasper.compiler.TldLocationsCache@25288684')
Nov 03, 2014 7:59:59 PM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /usr/home/cob/src/apache-tomcat-7.0.53/webapps2/docs
Nov 03, 2014 7:59:59 PM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /usr/home/cob/src/apache-tomcat-7.0.53/webapps2/ROOT
Nov 03, 2014 7:59:59 PM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /usr/home/cob/src/apache-tomcat-7.0.53/webapps2/manager
Nov 03, 2014 7:59:59 PM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /usr/home/cob/src/apache-tomcat-7.0.53/webapps2/host-manager
Nov 03, 2014 7:59:59 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-bio-18080"]
Nov 03, 2014 7:59:59 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-bio-18009"]
Nov 03, 2014 7:59:59 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 8304 ms

我不太确定是哪个端口导致了问题。 netstat 和正在使用的其他端口的 grepping 没有返回任何有用的信息。

Answer 1

作为 Basex 邮件列表人员，我对 Tomcat 了解不多...但是，您收到的错误消息对我来说非常熟悉。查看您的 .basex(或您定义 BaseX 选项的任何其他地方)会很有用。我猜你修改了两个实例的服务器端口以指向不同的端口。

但是，您没有修改 Event port ，因此服务器无法正常启动。尝试修改它以使用其他端口。