<br><br><div class="gmail_quote">On 9 June 2010 13:21, Rick Moynihan <span dir="ltr"><<a href="mailto:rick.moynihan@gmail.com">rick.moynihan@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Obviously in any distributed system it is impossible to be 100% sure<br>
of the status of a transaction... (See the 2 generals problem for an<br>
explanation why). I just wish they'd make their staff more aware of<br>
the fact that these systems can never be even close to infallible.<br>
<div class="im"><br></div></blockquote><div> I remembered reading an article a few years ago about supermarket databases, I recalled it from my own news article database. It was in 2006, and was about Wal-Mart and its store operations. It was stated that the Wal-Mart database updates a billion rows a day or approximately 11,600 rows a second ( a bit of trivia).<br>
<br><a href="http://www.informationweek.com/news/global-cio/showArticle.jhtml?articleID=175801775">http://www.informationweek.com/news/global-cio/showArticle.jhtml?articleID=175801775</a><br><br>Gordon<br><br> </div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div class="im"></div><font color="#888888">R.<br>
</font><div><div></div><div class="h5"><br>
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