Thanks! That's exactly what I want.
And Ted, what do you mean by "snapshots and mirrors" ?
On 2011/11/8 16:21, Harsh J wrote:
Block sizes are per-file, not permanently set on the HDFS. So create
your files with a sufficiently large block size (2G is OK if it fits
your usecase well). This way you won't have block splits, as you
desire.
For example, to upload a file via the shell with a tweaked blocksize, I'd do:
hadoop dfs -Ddfs.block.size=2147483648 -copyFromLocal localFile remoteFile
Packet sizes are not what you want to tweak here.
On Tue, Nov 8, 2011 at 1:02 PM, donal0412<donal0...@gmail.com> wrote:
Hi,
I want to store lots of files in HDFS, the file size is<= 2G.
I don't want the file to split into blocks,because I need the whole file
while processing it, and I don't want to transfer blocks to one node when
processing it.
A easy way to do this would be set dfs.write.packet.size to 2G, I wonder if
some one has similar experiences or known whether this is practicable.
Will there be performance problems when set the packet size to a big number?
Thanks!
donal
