On 7/2/2014 10:04 AM, Aline Manera
          wrote:
        
        
          
          
          On 06/27/2014 08:15 AM, Wen Wang
            wrote:
          
          
            
            Dear all,
            
            Problems:
            Now our strategy  for long time operation is using task
            which the browser needs to check up-to-date task status time
            by time until the task ends. It's time consuming and less
            efficient. Also there exists several problems when locating
            each task when doing debug generating and storage pool as
            well as some new features that might use task strategy in
            the future. 
            
            Solution:
            As talked with Sheldon and Zhengsheng, we came up with a
            solution that avoid browser checking status every 200ms.
            Also, we might need some more labels in each task to provide
            more information when getting the task like we might need to
            indicate which operation triggered certain task. What's in
            our mind is to use the strategy that allow the server inform
            browser about the task information. Our proposal is designed
            as follows.
            
            1) Browser needs to register to the back end to indicate
            which part the result needs to reply to when the task
            finished.
            2) The back end use broker to manage message distribution:
            when a task is finished or experiencing an error, back end
            inform the browser certain part of work is finished or
            error.
            3) Using websocket of cherrypy to accomplish the message
            transfer.
            
          
          
          +1
          
          We just need more details to accomplish that
          Can we do it in 3 weeks (1 sprint)? or 1 sprint for backend
          and other one for the frontend?
        
        We discussed today.It depends on how much we want to use this
        new feature. Though it's a good feature, we might need to
        redesign all task in the back-end and might need a new tab in
        the front which indicates user what kind of message they want to
        register.