Tomcat multiple services - startup problems

Question

I'm trying to run two instances of BaseX in Tomcat with the following server.conf. I'm running into an odd problem: both are available on their respective ports, but the webapp itself is the same WAR; i.e. a link that is only in the webapps/ WAR appears in the WAR loaded from webapps2. I'm not really sure what my next steps should be -- I'll ask on the BaseX mailing list but they're not using much Tomcat there.

Here's my 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>

When I start Tomcat, everything in both services loads okay except for the second BaseX application. When Tomcat starts to load that I get the following error:

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

I'm not really sure that port is that's causing the problem. netstat and grepping for other ports in use aren't returning anything useful.

score 1 · Accepted Answer · answered Nov 17 '14 at 08:44

As a Basex mailing list guy, I don't have much knowledge about Tomcat... However, the error message you get is quite well-known to me. It would be useful to see your .basex (or any other place, where you define your BaseX options). I would guess you modified the Server port for both instances to point to different ports.

However, you did not modify the Event port, thus the server does not start up correctly. Try modifying it to use some other port.

Tomcat multiple services - startup problems

1 Answers1