What type of software and technology is used for this site (YA – the one where you are right now)?
I’m wondering because of the way it’s behaving. I get "question deleted" pages but the question is still in the list 10 minutes later. I submit answers and get the question page without my answer there. Just a few examples. Is anybody else running into this lately.? Maybe they need more servers. I suspect that much of this is caused by high load on the database servers.
Julie – I agree with you. It just seems that the lag time is growing fast in recent days.
I would suspect that they optimize database access by caching some queries. This could lead to important speed increases, but unfortunately could lead to some inconsistencies like the listing showing a deleted question.
In systems I make, I normally would flag the cache as bad but YA doesn’t seem to do it. Maybe they tried it and it caused too much of a load increase, though.
The software is "home grown". I don’t know what language. They probably write to several databases – the Q & A in one, the open index in one, closed question in one, etc. It takes a while for all databases to be updated.
-MM
References :
I would suspect that they optimize database access by caching some queries. This could lead to important speed increases, but unfortunately could lead to some inconsistencies like the listing showing a deleted question.
In systems I make, I normally would flag the cache as bad but YA doesn’t seem to do it. Maybe they tried it and it caused too much of a load increase, though.
References :