learn hive hadoop

First, prepareUpload apache-hive-1.2.1.tar.gz and Mysql--connector-java-5.1.6-bin.jar to NODE01Cd/toolsTAR-ZXVF apache-hive-1.2.1.tar.gz-c/ren/Cd/renMV apache-hive-1.2.1 hive-1.2.1This cluster uses MySQL as the hive metadata storeVI Etc/profileExport hive_home=/ren/

0.1630 seconds 3 Data Records inserted Import hive from mysql # sqoop import --connect jdbc:mysql://localhost:3306/sqoop_test --username root --password root --table employee --hive-import --hive-table hive_employee --create-hive-tableWarning: /usr/lib/sqoop/../hive-hcatalo

Reprint Please specify source: http://blog.csdn.net/l1028386804/article/details/464961231.hive1.1 is the role of the Data Warehouse in the Hadoop ecosystem. He is able to manage data in Hadoop and can query data in Hadoop.In essence, hive is a SQL parsing engine. Hive can run SQL queries into a job in MapReduce.Hive ha

This article describes how to use SQL to query hadoop data. The main technology used is: PhP submits SQL queries to hive through thrift, hive converts SQL queries to hadoop tasks, and returns a result URI after hadoop completes execution, then we only need to read the conten

directory 5. Output the query results to a local directory of 6. Select all columns to the local directory 7. Inserts a table's statistics into another table 8. Inserting multiple table data into the same table 9. Inserting a file stream directly into the file 10.2 Partition-based Query 11.3 Join4. The habit of changing from SQL to HIVEQL 1.Hive does not support equivalent connections 2. Semicolon character 3.IS not NULL4.

Differences between hadoop computing platform and hadoop Data WarehouseHttp://datasearch.ruc.edu.cn /~ Boliangfeng/blog /? Tag = % E6 % 95% B0 % E6 % 8d % AE % E4 % BB % 93% E5 % Ba % 93 Hive (III)-similarities and differences between hive and databasesHttp://www.tbdata.org/archives/551

: edit the. bash_profile file in the home directory, add an environment variable, and the warning disappears: Export hadoop_home_warn_suppress = 1 My situation is: in the computer environment variables have set hadoop_home path, and later in the hadoop-env.sh and set export hadoop_home = E:/hadoop/hadoop-1.0.3, later, I commented out the comment in the file and d

http://10.18.51.52:9999/hwi/; This installs the Web browsing address for the configuration. Hive is Hadoop -based , so install and complete Hadoopfirst. Export Hive_home=/usr/hiveExport hive_conf_dir= $HOME/hive-confExport classpath= $HIVE _home/lib: $JAVA _home/lib: $JAVA _home/jre/lib: $

Because a lot of data is on the hadoop platform, when migrating data from the hadoop platform to the hive directory, the default delimiter of hive is that for smooth migration, you need to create a table Because a lot of data is on the hadoop platform, when migrating data f

map phase through the script/bin/CAT (like hadoop streaming). Similarly-streaming can be used on the reduce side (please see the hive tutorial or examples)Actual ExampleCreate a tableCreate Table u_data (Userid int,Movieid int,Rating int,Unixtime string)Row format delimitedFields terminated by '/t'Stored as textfile;Download the sample data file and decompress it.Wget http://www.grouplens.org/system/files/

Description of the Hadoop environment:Master node: Node1Slave node: node2,node3,node4Remote server (Python connection hive): Node29Requirement: The top 10 URLs that are queried in the CDN log for the highest number of URL accesses in a specified time period via hivePS: With pig query can query article:http://shineforever.blog.51cto.com/1429204/1571124Description: The python operation remote operation requir

Tags: man manual enter row tar.gz err 1.4 for maximumHue: Https://github.com/cloudera/hue Hue Study document address : http://archive.cloudera.com/cdh5/cdh/5/hue-3.7.0-cdh5.3.6/manual.html I'm currently using hue-3.7.0-cdh5.3.6. Hue (Hue=hadoop User Experience) Hue is an open-source Apache Hadoop UI system that evolved from Cloudera desktop and finally cloudera the company's contribution to the Apache Found

1. First Download hiveChoose the bin option, or compile it yourself laterUnzip the installation move to/usr/local/hiveGo to Hive directory and enter CONFCP hive-env.sh.template HIVE-ENV.SHCP hive-default.xml.template HIVE-SITE.XMLCP hive