Re: A question about reading one block

2012-10-31 Thread Harsh J
Vivi, There is no inbuilt function to do this, no. You'd have to write the utility yourself. On Thu, Nov 1, 2012 at 3:01 AM, Vivi Lang wrote: > Please ignore the previous email which I did not describe the problem > clearly. > > On Wed, Oct 31, 2012 at 3:05 PM, Vivi Lang wrote: > >> Hi, thks fo

Re: A question about reading one block

2012-10-31 Thread Vivi Lang
Please ignore the previous email which I did not describe the problem clearly. On Wed, Oct 31, 2012 at 3:05 PM, Vivi Lang wrote: > 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 Sa

Re: A question about reading one block

2012-10-31 Thread Vivi Lang
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 wrote: > Vivi, > > Assuming you know how to get the block info out of a file's metadata, > opening a file

Re: A question about reading one block

2012-10-27 Thread Harsh J
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 wrote: > Hi guys, > > I a