Vivi, Assuming you know how to get the block info out of a file's metadata, opening a file for read (with FileSystem.open API, etc.) with an offset and length set to to match that of a block, will open and read only that block.
On Sat, Oct 27, 2012 at 2:19 AM, Vivi Lang <sqlxwei...@gmail.com> wrote: > Hi guys, > > I am writing a program which need the data of several specific blocks (I > know the blockinfo of those blocks), if I use the Hadoop 0.20, is there > any funtion which can help me to retrieve the content of block? > > Thanks, > Vivi -- Harsh J
