Hi list,

I have a web app which is a kind of arbitration application. Users bid on some 
products or projects and the one who gives the biggest price gets the 
project. Every project has some bidding expiration time. What i need is how 
can i handle the situation to change the status of the project on a specific 
time? For example , i submit a project and it should expire after 2 hours.

Some solutions i can think are :
        - Cronjobs , which checks the db every minute , but that will be very 
expensive i think
        - Twisted , but if server gets restarted i may loose the track of the 
deferreds

Does anyone solved a problem like that before ? Any suggestions ...

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