Enterprise Portal AX 2012: Unable to obtain exclusive access to the session cache

When i was opening newly developed enterprise portal page i was not able to render it for around 15-20 Mins and it was loading state. I haven't found any solution over internet. The error was

Resolution

1. Check your SQL database drive have enough space. Mine was just 2.2 GB.(Might be not true it was in my case).
2. Restart Sql Server services.

Please write your comments :)