-Re: datanode write forwarding
Chris Embree 2012-12-18, 22:19
Is that a change from 1.0 code? Hortonworks explains it a little
Thanks for the details and pointer to the code.
Chris (another one)
On Dec 18, 2012 5:14 PM, "Harsh J" <[EMAIL PROTECTED]> wrote:
> The received write packet is directly socket-written to the next
> node's receiver (async process - we don't wait for it to hit the disk
> there), and then written onto the disk of self().
> You may see HDFS classes BlockReceiver and PacketReceiver in trunk for
> more information.
> On Wed, Dec 19, 2012 at 2:26 AM, Jay Vyas <[EMAIL PROTECTED]> wrote:
> > Hi :
> > Do data nodes, when they receive write requests, forward the request to
> > next datanode in the chain after appending to a file? Or rather, do the
> > write and forward asynchronously and at the same time?
> > --
> > Jay Vyas
> > http://jayunit100.blogspot.com
> Harsh J