----- Original Message ----- > From: "Gregory Farnum" <gregory.farnum@xxxxxxxxxxxxx> > > I can't imagine anybody needing location data inside of a fast path, > in any case. So it probably shouldn't matter, and for any bizarre case > where it does we can probably expect a certain level of knowledge! > -Greg Interestingly, Hadoop's start-up phase a big time sink. With 64 MB blocks and a 1 TB data set, we'd make something like 16,000 calls to get block location data which is serialized with the start of the job. -Noah -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html