On Tuesday, October 23, 2012 2:26:40 PM UTC-7, Alexey Petrushin wrote: > > P.S. Does anyone really estimated how much will be losses in case of some > (0.00...X) transactions lost due to lack of transactional support in mongo? > I mean in stores like amazon - it's not a question, losses are huge, but > in case of an ordinary e-shop? Are they really so big? One developer cost > about 100 / per-year, so, mongo allows to build product faster and thus > save cost on development time (although, it's also subject to question). > The question is - what's higher - cost of development or lost transactions. >
Hard to say, it really depends on how stable your system is. We had some problems with a computer that until we fixed it, it was crashing several times a day. We were stuck with a proprietary, non-ACID database on that, and the data corruption was rather frustrating. On the other hand, I suspect that mongo wouldn't be as popular as it is if it were as much of a pain as this was to repair after a crash. I suspect you're thinking strictly in terms of lost sales. That's the smallest of the three issues I see. Yes, lost sales are one possible problem. Getting your database back into working order is another possible problem, as both an expense in man hours and site downtime, with the amount of work dependent on quite a few things. The last factor, and probably the most important one in my opinion, is lost reputation. If you bought something online, never received anything, and when you contacted the seller, they said that they had no record of your order other than the CC charge, would you EVER use them again, even if they promptly refunded your money? -- Job Board: http://jobs.nodejs.org/ Posting guidelines: https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines You received this message because you are subscribed to the Google Groups "nodejs" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nodejs?hl=en?hl=en
