All the Apache Hadoop Code is hosted in SVN. How does Git help in Had开发者_如何学运维oop development process? It\'s not clear from the below article.
I am a newbie to Nutch and Hadoop and trying to follow the tutorial here at http://wiki.apache.org/nutch/NutchHadoopTutorial.
As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references,o开发者_JS百科r expertise, but this question will likely soli
So, I\'ve seen a couple of tutorials for this online, but each seems to say to do something different. Also, each of them doesn\'t seem to specify whether you\'re trying to get things to work on a rem
The hadoop documentation states: The right number of reduces seems to be 0.95 or 1.75 multiplied by ( * mapred.tasktracker.reduce.tasks.maximum).
It seems a very common use case but so hard to do in 开发者_JAVA百科Hadoop (it is possible with WholeFileRecordReader class).
I am new to Hadoop and HDFS, so maybe it is something I am doing wrong when I copy from local (Ubuntu 10.04) to HDFS on a single node on localhost.The initial copy works fine, but when I modify my loc
When should use and not to use FileOutputFormat.setCompressOutpu开发者_Python百科t(conf, true);? I heard that it compresses mapper output. Is there any possibility to compress reducer side output?
Hi I am trying to run Apache Nutch 1.2 on Amazon\'s EMR. To do this I specifiy an input directory from S3.I get the following error:
I am using Spring + Datanucleus JDO + Hbase. Hbase is on a fully distributed mode with two nodes. I am facing serious performance issues here.
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