Threading Race Condition
(About.com) Just a quick note to let you know that the introduction article on threading has been updated to include a classic example of a threading race condition. That's a program where more than one thread updates the same information and the result depends
Update update feed set failed_fetches=0, fetched=current_timestamp() where feed_id = 15541 failed: 1142 [UPDATE command denied to user '334187_hdlns_ms5'@'10.187.248.89' for table 'feed'] in [update feed set failed_fetches=0, fetched=current_timestamp() where feed_id = 15541]
updated 15541 (About Visual Basic), inserted 9, updated 0, at 2012-06-01 14:55:06