grunt>helpCommands:<pig latin statement>;-See the PigLatin manualfordetails:http://hadoop.apache.org/pig File system commands:fs<fs arguments>-Equivalent to Hadoop dfs command:http://hadoop.apache.org/common/docs/current/hdfs_shell.html Diagnostic Commands:describe<alias>[::<alias]-Show the sc...
File system commands: fs <fs arguments> - Equivalent to Hadoop dfs command: http://hadoop.apache.org/common/docs/current/hdfs_shell.html Diagnostic commands: describe <alias>[::<alias] - Show the schema for the alias. Inner aliases can be described as A::B. explain [-script <pigscript>...
Apache Pig is an open-source Apache library that runs on top of Hadoop, providing a scripting language that you can use to transform large data sets without having to write complex code in a lower level computer language like Java. The library takes SQL-like commands written in a language ...
Pig Hadoop is an abstraction over MapReduce. It is a tool/platform used to analyze larger data sets by representing them as data flows. Learn Apache pig in detail.
Pig version:pig-0.9.2.tar.gzhttp://mirror.bjtu.edu.cn/apache/pig/pig-0.9.2/pig-0.9.2.tar.gz北京大学的apache镜像下载,这个版本呢其实不是最新的但和hadoop0.20.2版本匹配,pig版本与hadoop版本也是有配达要求的,请注意你自己的安装的hadoop版本是啥,上网搜索一下对应的版本,当然从上面的网站上可以下载pi...
Run/Execute Pig commands:Pig Latin statements and Pig scripts can be run in both ‘Local’ and ‘MapReduce’ mode. For local mode, a single machine is required and forMapReducemode, Hadoop cluster andHDFSinstallation is needed. Pig can be run in two ways. First, you can use ‘pig’ co...
File system commands: fs <fs arguments> - Equivalent to Hadoop dfs command: http://hadoop.apache.org/common/docs/current/hdfs_shell.html Diagnostic commands: describe <alias>[::<alias] - Show the schema for the alias. Inner aliases can be described as A::B. ...
Linux line continuation characters (\) are included for readability. They can be removed or used in Linux commands. For Windows, remove them or replace with a caret (^). When you specify the instance count without using the--instance-groupsparameter, a single master node is launched, and th...
1、hadoop在windows cygwin下的部署: http://lib.open-open.com/view/1333428291655 http://blog.csdn.net/ruby97/article/details/7423088 http://blog.csdn.net/savechina/article/details/5656937 2、hadoop 伪分布式安装: http://www.thegeekstuff.com/2012/02/hadoop-pseudo-distributed-installation/ ...
The example commands below use the Hadoop Streaming jarfor MRv1shipped with Cloudera CDH4: hadoop-streaming-2.0.0-mr1-cdh4.3.0.jar(as of July 2013) If you are not using Cloudera CDH4 or are using a new version of CDH4 just replace the jar file with the one included in your Hadoop ...