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1. connection $mysqli = new mysqli($host,$user,$passwd,$db,$port); if ($mysqli->connect_errno) { echo "Failed to connect to MySQL: (" . $my... 阅读全文
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Installing the Vagrant VM for Full Stack Foundations1. you need to install Git, VirtualBox, Vagrant2. in git, run the command, create a folder called ... 阅读全文
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MultipleOutputs: write data to multiple files with customized name, can be used for both map and reduce phase.http://www.lichun.cc/blog/2013/11/how-t... 阅读全文
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http://khangaonkar.blogspot.com/2012/09/hadoop-2x-tutorial.html1. hdfs-site.xmlnamenode and datanode folder need to create in advance, all the content... 阅读全文
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1. Combinercombiner is between map and reduce, similar to reducer, combine some data before reducer.http://hadooptutorial.wikispaces.com/Custom+combin... 阅读全文
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1. load file into hdfshadoop fs -put src destexample: load a fold "input" into hdfs "input1" folder, "input1" folder must not already existyou can no... 阅读全文