Jay Vyas 2011-10-31, 22:07
Uma Maheswara Rao G 72686... 2011-10-31, 22:16
Thanks uma : I was looking for a more general list. Is there a good
summary of various hadoop daemons and their logs online ?
On Mon, Oct 31, 2011 at 6:16 PM, Uma Maheswara Rao G 72686 <
[EMAIL PROTECTED]> wrote:
> If you want to trace one particular block associated with a file, you can
> first check the file Name and find the NameSystem.allocateBlock: from your
> NN logs.
> here you can find the allocated blockID. After this, you just grep with
> this blockID from your huge logs. Take the time spamps for each operations
> based on this grep information. easily you can trace what happend to that
> ----- Original Message -----
> From: Jay Vyas <[EMAIL PROTECTED]>
> Date: Tuesday, November 1, 2011 3:37 am
> Subject: Server log files, order of importance ?
> To: [EMAIL PROTECTED]
> > Hi guys :I wanted to go through each of the server logs on my hadoop
> > (single psuedo node) vm.
> > In particular, I want to know where to look when things go wrong
> > (i.e. so I
> > can more effectively debug hadoop namenode issues in the future).
> > Can someone suggest what the most important ones to start looking
> > at are ?
> > --
> > Jay Vyas
> > MMSB/UCHC