Not sure what mongo's doing (generate ID or triggers or something) but it should only be a problem of efficiency if the writes are idempotent.
On Mar 2, 2012, at 3:39 AM, Jonathan Coveney wrote: > I agree with Bill. Speculative execution is a feature of Hadoop that > doesn't jive nicely with storing data into non-hadoop systems. > > 2012/3/1 Bill Graham <[email protected]> > >> I don't think this is a bug. This is something that always needs to be done >> when writing to any DB. >> >> On Thu, Mar 1, 2012 at 5:19 PM, Russell Jurney <[email protected] >>> wrote: >> >>> https://jira.mongodb.org/browse/HADOOP-26 >>> >>> -- >>> Russell Jurney twitter.com/rjurney [email protected] >>> datasyndrome.com >>> >> >> >> >> -- >> *Note that I'm no longer using my Yahoo! email address. Please email me at >> [email protected] going forward.* >>
