Re: [Myexperiment-discuss] Run workflow from browser in myExperiment: (Case 53)

[Steve Pettifer]

> 1. A server to run the workflow capable of coping with the load OR  
> a way of running on your local Taverna installation

We've got a cobbled-together taverna server, with a small number of  
hardwired trivial workflows  (i.e. around 5 services/shims each) as  
the backend for UTOPIA at the moment; it's a single processor  
machine, and is really struggling under the load with even a 'small'  
number of users (i've not checked the statistics recently, but it's  
something in the order of a few hundred hits per day). A while ago we  
got to the point of having to reboot the server every 4 minutes to  
clean up leaks, though I believe with the latest version of taverna  
that's improved. Hopefully with Stian's proper server implementation  
these issues will go away; however I suspect though that setting up  
an open access taverna server is going to be fairly power hungry, and  
that having an easy-to-install local engine is likely to be a more  
realistic solution if myExperiment takes off (maybe with a 'sandbox'  
server for people to play with in order to get them interested in the  
first place?)

> 2. A way of entering inputs
> 3. A way of storing results
> 4. A way of presenting results
> 5. A way of monitoring progress and handling error conditions and  
> fail-overs.

Can we make sure that all the above have sensible programatic access  
too as well as through the browser?

Steve