On Tue, Jul 28, 2009 at 01:25:49PM -0700, Ted Dunning wrote: > On Tue, Jul 28, 2009 at 12:15 PM, william kinney > <[email protected]>wrote: > > > > > Also, from the job page (different job, same Map method, just more > > data...~40GB. 781 files): > > Map input records 629,738,080 > > Map input bytes 41,538,992,880 > > > > Anything else I can look into? > > > Yes. The number of data local maps and how many maps total. >
Do "data local maps" short-circuit to the local filesystem at all, or do they read data over HTTP from the data node's jetty instance over the loopback device? -Erik
