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 > block. > > Regards, > Uma > ----- 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 > > > -- Jay Vyas MMSB/UCHC
