Greetings,
I am using Apache Tomcat 7.0.25 using IBM J9 VM (build 2.4, JRE 1.6.0
IBM J9 2.4 Linux s390x-64 jvmxz6460sr8ifx-20100609_59383).
Inspired by the flurry of JMX related questions on this list, I
attempted to follow the official documentation[1] to enable remote JMX
access. My sanitized conf/server.xml:
<?xml version="1.0" encoding="utf-8"?>
<Server address="a.b.c.d" port="8081">
<Listener className="org.apache.catalina.core.AprLifecycleListener"/>
<Listener className="org.apache.catalina.core.JasperListener"/>
<Listener
className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener"/>
<Listener className="org.apache.catalina.mbeans.JmxRemoteLifecycleListener"
rmiRegistryPortPlatform="8181" rmiServerPortPlatform="8182" />
<GlobalNamingResources>
<Resource name="UserDatabase" auth="Container"
type="org.apache.catalina.UserDatabase"
readonly="true"
factory="org.apache.catalina.users.MemoryUserDatabaseFactory"
pathname="${catalina.home}/conf/tomcat-users.xml"/>
</GlobalNamingResources>
<Service name="Catalina">
<Connector scheme="http" address="a.b.c.d" port="8080"
compression="on" enableLookups="false" URIEncoding="UTF-8"/>
<Connector scheme="https" address="a.b.c.d" port="8443" secure="true"
compression="on" enableLookups="false" URIEncoding="UTF-8"
SSLEnabled="true"
SSLCertificateFile="${catalina.home}/conf/cacert.pem"
SSLCertificateKeyFile="${catalina.home}/conf/privkey.pem"/>
<Engine name="Catalina" defaultHost="vhost.acme.com">
<Realm className="org.apache.catalina.realm.UserDatabaseRealm"
resourceName="UserDatabase"/>
<Host name="vhost.acme.com" appBase="webapps" autoDeploy="false"
deployIgnore=".svn" unpackWARs="true">
<Valve className="org.apache.catalina.valves.AccessLogValve"
pattern="common" resolveHosts="false"/>
<Context path="/manager" privileged="true"/>
</Host>
</Engine>
</Service>
</Server>
I verify that Tomcat thinks this is performing correctly:
logs/catalina.2012-02-09.log:09-Feb-2012 10:27:23.134 INFO
[AsyncFileHandlerWriter-1715627586]
org.apache.catalina.mbeans.JmxRemoteLifecycleListener.createServer The
JMX Remote Listener has configured the registry on port 8181 and the
server on port 8182 for the Platform server
Prior to server start, netstat -a --numeric-ports | grep LIST | grep
8181 shows empty output.
After server start, the same command shows: tcp 0 0 *:8181
*:* LISTEN
This is not good because I have multiple, completely separate,
installations of Tomcat 7.0.25. I want each of them to be able to have
their own JMX on a.b.c.d .. however, it seems that Tomcat is doing a
blanket socket bind despite me coding the IP address. I think it would
be ideal that if a Server address= is coded, that those would be used
when binding JMX. Additionally, to allow coding the hostname to bind
in that Listener.
What is the expected behavior? Is this a bug?
-Jesse
[1]
http://tomcat.apache.org/tomcat-7.0-doc/config/listeners.html#Additional_Implementations
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