Hi, I would like some suggestion on archietecture design. Here are my requirements 1) I have clients spreaded over multiple locations 2) Their are groups of clients connected to a common server 3) Each server will gather gb of data everyday 4) There is a main server which is connected to every other local server 5) This server will have all the data which the local server will have. local servers will send data to main server. 6) I will be doing analytics on the main server as well as local servers My main questions are 1) Since this is big data, which database should I consider sql or nosql 2) Where can hadoop fit here? 3) Is there are framework which helps me in sending data from local to global servers

Hi All, I want to provide username and password in the winlogon dialog box using my service without using my custom GINA.dll . I am using Windows notification packages. Is it possible to do so? Whenver my service locks the computer my service will unlock it automatically after some time inverval. Is there a way to interact with the Winlogon.exe(msgina.dll) for this pass through authentication. Recentrly I installed Logmein and it has this kind of feature implemented. You remote control a PC using logmein and if a computer is locked or logged off it automatically logs in or unlocks the computer without reentering the username and password