在生产中连接jmx时出错

Question

For some reason i'm not able to connect java pid on production server using VisualVM.

I have pass the jvm parameter in setenv.sh file:

export JAVA_OPTS="-Dcom.sun.management.jmxremote=true \ 
            -Dcom.sun.management.jmxremote.port=9999\ 
             -Dcom.sun.management.jmxremote.authenticate=false\ 
             -Dcom.sun.management.jmxremote.ssl=false \ 
            -Djava.rmi.server.hostname=192.168.1.2" 

and put this file into $ /usr/share/tomcat7/bin/ directory.
and also for authentication purpose both jmxremote.password and jmxremote.access file put into "/var/lib/tomcat7/conf/" directory.

File permissions :

**$sudo chown tomcat7:tomcat7 /var/lib/tomcat7/conf/jmxremote.*** is ensuring that both file owned by tomcat7

**$ sudo chmod 0600 /var/lib/tomcat7/conf/jmxremote.*** //  access right for tomcat7

$ sudo cat jmxremote.password

admin alonegk

$ sudo cat jmxremote.access

admin readwrite

The Same thing running fine while i did it on dev server as well as my localhost.

Thanks in anticipation.

Answer 1

Please try with the following :

export JAVA_OPTS="-Dcom.sun.management.jmxremote \ 
            -Dcom.sun.management.jmxremote.port=9999\ 
             -Dcom.sun.management.jmxremote.authenticate=false\ 
             -Dcom.sun.management.jmxremote.ssl=false \ 
            -Djava.rmi.server.hostname=192.168.1.2" 

Since the authentication is set to false, username and password does not have any significance here.

In case you want to use username and password, the following two strings should be appended :

-Dcom.sun.management.jmxremote.password.file=<PATH>/jmxremote.password
-Dcom.sun.management.jmxremote.access.file=<PATH>/jmxremote.access