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To: Edwarda who wrote (11610)3/8/2000 12:17:00 PM
From: Green Receipt  Read Replies (1) | Respond to of 32912
 
I believe you that it happened, having seen many strange things happen in real time systems. I suspect there were two people, You and someone else who happened to press the reply button at the same time (exact) or perhaps pressed the 'submit' button at the exact same time.

Then the following may have happened.

* Server responds to other person's request..
* Server assigns a position/place to place message
* Other request hits end of timeslice and server stops processing other request.
* Server responds to your request.
* Server assigns assigns a place/position to place message
* timeslice ends. server stops processing your request.
* Server responds to a third request.
* Server assigns your place/position to place request/message.
* Server finishes transaction.
* Server starts your transaction (new timeslice).
* Server stores your request, but discovers place has been taken and puts it somewhere else.
* Server finishes transaction

You discover your transaction is not where you thought it would be.

I've seen scenarios such as the above occur in real life.