I'm using xcode, my app usually took 1 - 2 minutes to be processed but today I waited for 15 minutes. What I did was increase the build, keep the version same and archive it again. And it went thru within 2 minutes while the previous build still stuck after an hour.
My advise is don't wait for Apple, just increase build and upload again. Apple is too noble to admit their system has bug or mistake. Time is money.