CONFIGURE JCONSOLE FOR JVM (TOMCAT) on CENTOS:
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1) #vi /etc/profile
insert -->
CATALINA_OPTS="-Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=8999 -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.authenticate=false -Djava.rmi.server.hostname=127.0.0.1"
export CATALINA_OPTS
2) #jconsole
go to remote process,type:
localhost:8999 --> connect
Please refer to:
http://download.oracle.com/javase/1.5.0/docs/guide/management/faq.html
http://www.markomedia.com.au/blog/monitor-railo-on-tomcat-using-jconsole.html (best to refer)
https://wiki.internet2.edu/confluence/display/CPD/Monitoring+Tomcat+with+JMX
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How to check port 8999 listening:
#netstat -anp | grep 8999
Enable 8999 to listen:
#iptables --list
#/usr/sbin/iptables -I INPUT -s 127.0.0.1/192.168.10.220 -p tcp --destination-port 8999 -j ACCEPT
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HOW TO ENABLE GC LOG IN CATALINA.OUT
In /etc/profile:
-->
CATALINA_OPTS="-verbose:gc -Xms256m -Xmx512m -XX:+PrintGCTimeStamps -XX:+PrintGCDetails"
export CATALINA_OPTS
When we talk about life..there's lot of options/decisions that need to deal with..this will determine what might be happened next...have u make a good decision to decide yours? Me?
Yes..I did it when it needed. When making a decision, there's a lot of consideration that need to be taken care of...people that u love,surrounding that makes u happy,people's feeling and so on..
Lots of things happened in my life...good and bad...but I do believe ...each of them happened for a reason and sake.
Anyway, once u make it, deal with it. Look forward and do not flip back...there's always good things happened along the journey...take it easy...enjoy your life. Sacrifice?...Yup...it's a must even if it is a win win situation.There's always a price to pay toward anything happened..deal with it...
At the end of the day....I have to leave the people that i love so that I can go along the journey alone to gain maturity and part of life lesson
