Re: Patch

2008-06-13 Thread Andreas Kostyrka
Sorry, for replying the private email to the mailing list, but I strongly believe in leaving the next guy something to google ;) Anyway, as you seem to be knowledgeable about sorting, one question: Does hadoop provide all key/value tuples for a given key in one batch to the reducer, or not?

Re: What did I do wrong? (Too many fetch-failures)

2008-06-13 Thread Andreas Kostyrka
For me, I had to upgrade to 0.17.0, which made this problem go away magically. No idea if that will solve your problem. Andreas On Thursday 12 June 2008 23:04:17 Rob Collins wrote: In a previous life, I had no problems setting up a small cluster. Now I have managed to mess it up. I see reports

Re: Map Task timed out?

2008-06-13 Thread Edward J. Yoon
Thanks for all advices. :) Edward On Fri, Jun 13, 2008 at 3:22 PM, lohit [EMAIL PROTECTED] wrote: Check RandomWriter.java look for reporter.setStatus(wrote record + itemCount + .. - Original Message From: Edward J. Yoon [EMAIL PROTECTED] To:

Re: Question about Hadoop

2008-06-13 Thread Ted Dunning
Usually hadoop programs are not used interactively since what they excel at is batch operations on very large collections of data. It is quite reasonable to store resulting data in hadoop and access those results using hadoop. The cleanest way to do that is to have a presentation layer web

Re: Patch

2008-06-13 Thread Ted Dunning
Yes. It does. This can be the source of some imbalanced load in the reducer, but is essential to correct functioning of the map-reduce model. Sometimes it is good to actually add some additional salt to the key just so that the large reduce lists get split up a bit for more equitable