Shall i have to make my application code open source if using ejabberd?

I am new to ejabberd and looking forward if it will solve our problem.

I was looking into ejabberd and found it GPLv2 licences. Let say that i am using it as follow:

You will come to my website/app and login start chat using Instant messanger. I will use ejabbered on server side to handle and process your messaging and chating.

1. So shall i have to make my application code open source?
2. Can I use it for commercial purpose without any restriction?