Hi,
I am using Hadoop 0.20.1. Recently we had a JobTracker outage because of the
following:
JobTracker tries to write a file to HDFS but it's connection to primary
datanode gets disrupted. It then subsequently enters into retry loop (that goes
on for hours).
I see the the following message i
Thanks a lot. Ted, checking haloop and plume now. I could always get the
answer from you. :-)
On Thu, May 5, 2011 at 10:42 PM, Ted Dunning wrote:
> Stanley,
>
> The short answer is that this is a real problem.
>
> Try this:
>
> *Spark: Cluster Computing with Working Sets.* Matei Zaharia, Moshara
-- Forwarded message --
From: praveenesh kumar
Date: Wed, May 4, 2011 at 4:51 PM
Subject: What is GEO_RSS_URI ???
To: common-u...@hadoop.apache.org
Hello Hadoop users,
I came across some Map-Reduce examples on google code.
Here is the link
http://code.google.com/p/hadoop-map-r
Hadoop uses an InputFormat class to parse files and generate key,
value pairs for your Mapper. An InputFormat is any class which extends
the base abstract class:
http://hadoop.apache.org/common/docs/r0.20.0/api/org/apache/hadoop/mapreduce/InputFormat.html
The default InputFormat parse text files
Moving this to mapreduce--user@ since that is more appropriate for
hadoop-mapreduce questions (bcc: common-user@).
2011/5/5 王志强 :
> Hi, guys
> As the topic shows, how can I use different process methods to process
> data according to input file name in map function? Ie, May I get the input
Dear All,
Our team is trying to implement a parallelized LDA with Gibbs Sampling. We
are using the algorithm mentioned by plda, http://code.google.com/p/plda/
The problem is that by the Map-Reduce method the paper mentioned. We need to
run a MapReduce job every gibbs sampling iteration, and norma
