Some one in this forum told me Marvel is free, but when I installed that I could see the free trail for 1 month yet?
Any one can help me confirm? Thanks very much!
It's still free, you just need to get a license 
Thanks for your anwser, but looks like I see
TrialExpires 7 Jan 16
what is meaning for? 
and what do you mean about the license, can you explain more, thanks!!
You need to simply register for a free license, then that will go away.
Marvel should direct you on how to get access to that, but you can do it here https://register.elastic.co/marvel_register
Thanks a million @Warkolm, it works!