In 0.8 I had problems broadcasting variables around that size, for more info see here: https://mail-archives.apache.org/mod_mbox/incubator-spark-user/201310.mbox/%3ccamgysq9sivs0j9dhv9qgdzp9qxgfadqkrd58b3ynbnhdgkp...@mail.gmail.com%3E
On Wed, Mar 12, 2014 at 2:12 PM, Matei Zaharia <matei.zaha...@gmail.com> wrote: > You should try Torrent for this one, it will be faster. It’s still > experimental but I believe it works pretty well and it just needs more > testing to become the default. > > Matei > > On Mar 12, 2014, at 1:12 PM, Aureliano Buendia <buendia...@gmail.com> wrote: > > Is TorrentBroadcastFactory out of beta? IS it preferred over > HttpBroadcastFactory for large broadcasts? > > What are the benefits of HttpBroadcastFactory as the default factory? > > > On Wed, Mar 12, 2014 at 7:09 PM, Stephen Boesch <java...@gmail.com> wrote: >> >> Hi Josh, >> So then 2^31 (2.2Bilion) * 2^6 (length of double) = 128GB would be >> max array byte length with Doubles? >> >> >> 2014-03-12 11:30 GMT-07:00 Josh Marcus <jmar...@meetup.com>: >> >>> Aureliano, >>> >>> Just to answer your second question (unrelated to Spark), arrays in java >>> and scala can't be larger than the maximum value of an Integer >>> (Integer.MAX_VALUE), which means that arrays are limited to about 2.2 >>> billion elements. >>> >>> --j >>> >>> >>> >>> On Wed, Mar 12, 2014 at 1:08 PM, Aureliano Buendia <buendia...@gmail.com> >>> wrote: >>>> >>>> Hi, >>>> >>>> I asked a similar question a while ago, didn't get any answers. >>>> >>>> I'd like to share a 10 gb double array between 50 to 100 workers. The >>>> physical memory of workers is over 40 gb, so it can fit in each memory. The >>>> reason I'm sharing this array is that a cartesian operation is applied to >>>> this array, and I want to avoid network shuffling. >>>> >>>> 1. Is Spark broadcast built for pushing variables of gb size? Does it >>>> need special configurations (eg akka config, etc) to work under this >>>> condition? >>>> >>>> 2. (Not directly related to spark) Is the an upper limit for scala/java >>>> arrays other than the physical memory? Do they stop working when the array >>>> elements count exceeds a certain number? >>> >>> >> > >
