Hi, thks for the replying. Is there any function can help me to create a InputStream for a certain Block which stored in a certain datanode Thanks,
On Sat, Oct 27, 2012 at 9:41 PM, Harsh J <ha...@cloudera.com> wrote: > 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 >
