The number is just an adhoc number. The policy is not to put too many block files in the same directory because some local filesystems behave badly if the number of files in the same directory exceed a certain value.
-dhruba On Mon, Oct 11, 2010 at 1:15 PM, Thanh Do <than...@cs.wisc.edu> wrote: > Hi all, > > can anyone explain to me while do HDFS has the policy > to store 64 block files in a single sub directory? > and if the number of block files increase, > it just simply creates another subdir and put the block files there. > > Thanks > Thanh > -- Connect to me at http://www.facebook.com/dhruba
