Hi Vivi, I don't think HDFS offers any such API to do this today. What is your use-case for needing this (replacing a given existing block with another, arbitrary block?) though?
On Fri, Nov 9, 2012 at 7:19 AM, Vivi Lang <sqlxwei...@gmail.com> wrote: > Sorry, I found the previous one is full of typo and hard to understand. I > will clarify my question: > > If I have got a inputstream in a datanode (and this stream contains exactly > 64MB's data which I want to store it as a data block of the HDFS in that > datanode. More specifically, I want to use this block to replace another > exsiting block of one file that already stored in the HDFS), can anyone > tell me which is the easiest way to do this? > > Thanks, > > > On Thu, Nov 8, 2012 at 5:15 PM, Vivi Lang <sqlxwei...@gmail.com> wrote: > >> Hi all, >> >> If I want have get a inputstream in a datanode (and this should contains >> exactly 64MB data which I want to replace the content of an existing data >> block to store that content), can anyone tell me which is the easiest way >> to do this? Moreover, I would like to write this stream in the local >> datanode. >> >> Thanks, >> -- Harsh J
