sqoop hadoop

Operation Details: https://www.cnblogs.com/xiaodf/p/6030102.html Note: You need to create a table structure to be exported before exporting. An error occurs if the exported table does not exist in the database, and the data in the table repeats if multiple exports are repeated; CREATE TABLE Emp_demo as SELECT * from EMP where 1=2; CREATE TABLE Salgrade_demo as SELECT * from Salgrade where 1=2; Export all fields of a table Sqoop export--connect jdbc:

1. Install sqoop Download sqoop-1.2.0.tar.gz (version 1.20 is compatible with Hadoop0.20) Put the hadoop-core-0.20.2-cdh3u3.jar, hadoop-tools-0.20.2-cdh3u3.jar into the sqoop/lib directory, the two jar packages are out of cloudera company, you can go to its official website

Label:First, what is Sqoop Sqoop is an open source tool that is used primarily in Hadoop (Hive) and traditional databases (MySQL, PostgreSQL ...) Data can be transferred from one relational database (such as MySQL, Oracle, Postgres, etc.) to the HDFs in Hadoop, or the data in HDFs can be directed into a relational data

Software used in the lab development environment:[[email protected] local]# llTotal320576-rw-r--r--1Root root52550402Mar6 Ten: theapache-flume-1.6. 0-bin. Tar. GZdrwxr-xr-x 7Root root4096Jul the Ten: $flumedrwxr-xr-x. OneRoot root4096JulTen +:GenevaHadoop-rw-r--r--.1Root root124191203Jul2 One: -hadoop-2.4. 1-x64. Tar. GZdrwxr-xr-x.7Root root4096Jul - Ten: GenevaHbase-rw-r--r--.1Root root79367504Jan + -: +hbase-0.96. 2-hadoop2-bin. Tar. GZdrwxr-xr

Because of the needs of the work, need to transfer the data in HDFs to the relational database to become the corresponding table, on the Internet to find the relevant data for a long, found that different statements, the following is my own test process: To use Sqoop to achieve this need, first understand what Sqoop is. Sqoop is a tool used to transfer data from

Label:Sqoop is an open source tool that is used primarily in Hadoop (Hive) and traditional databases (MySQL, PostgreSQL ...) Data can be transferred from one relational database (such as MySQL, Oracle, Postgres, etc.) to the HDFs in Hadoop, or the data in HDFs can be directed into a relational database.1. Issue background Use Sqoop to put a table in the Oracle da

1. Environment Preparation 1.1 software versionsqoop-1.4.52. ConfigurationThe configuration of the Sqoop is relatively simple, and the files that need to be configured are given below2.1 Environment variablessudo VI /etc/profilesqoop_home=/home/hadoop/source/sqoop-1.4. 5 PATH= $SQOOP _home/binexport sqoop_home2.2sqoop-

Data synchronization between a relational database and a non-Relational Database 1. Without sqoop MySQL --> hive 1. Use naivacat (Tool) to export tables in the database (primary TAB/T should be used for export) 2. Use winscp (Tool) to upload data to a specified Linux directory 3. Create Table in hive first (idfa string) Row format delimited fields terminated by '\ t '" 4. hive-e "load data local inpath 't1.txt 'into Table T1" (If there is data in the

Sqoop is a tool used for data import and export, typically used in the framework of Hadoop, where common scenarios include importing data from a MySQL database into HDFs or hive, Hbase, or exporting it to a relational database. The following sections show the process of importing and exporting several pieces of code. Import data from MySQL into the Hadoop cluste

What is Sqoop? Sqoop is a tool used to migrate data from Hadoop and RDBMS (MySQL, Oracle, Postgres) to each other, and he can import RDBMS data into HDFs, or it can export HDFS data into an RDBMS.sqoop principle? One of the highlights of Sqoop is the ability to import data from an RDBMS into the hdfs/data from the

Recently, when you want to exclude the logic of user thumb ups, you need to combine nginx access. only part of log logs and Mysql records can be used for joint query. Previous nginx logs are stored in hadoop, while mysql Data is not imported into hadoop, to do this, you have to import some tables in Mysql into HDFS. Although the name of Sqoop was too early Recent

Tags: DSL java style order man LAN 2.7 CLI policyObjectiveThis article is primarily a summary of the pits that were encountered when importing data from MySQL to hive with Sqoop. Environment: System: Centos 6.5 hadoop:apache,2.7.3 mysql:5.1.73 jdk:1.8 sqoop:1.4.7 Hadoop runs in pseudo-distributed mode. One, the import command usedI

Label:The first is to install the MySQL database. Installation is complete using the sudo apt-get install mysql-server command. The table is then created and the data is inserted:Then download the Sqoop and the jar package that connects to the MySQL database. The next step is to install Sqoop. The first is to configure the sqoop-env.sh file:Then comment out the C

Installation: Tar-xzvf sqoop-1.4.1-cdh4.1.0.tar.gz Add sqljdbc4.jar into/usr/lib/sqoop/lib Set path Export sqoop_home =/usr/lib/sqoop Export ant_lib =/home/OP1/jasonliao/Apache-ant-1.9.0/lib Export Path = $ path:/home/OP1/logging/tool/play-1.2.5: $ java_home/bin: $ ant_home/bin: $ sqoop_home/bin

Tags: Oda ADO website connected head map targe PWD DigitalSqoop is a database used in Hadoop and relational databases (Oracle,mysql ... Open source tools for data transfer between The following is an example of MySQL, SQL Server, using Sqoop to import data from MySQL, SQL Server into Hadoop (HDFS, Hive) #导入命令及参数介绍 Common parameters Name of parame

Tags: exporting. NET size Data Conversion ref DIR username Nat tmpHive Summary (vii) hive four ways to import data (strongly recommended to see) Several methods of data export of Hive https://www.iteblog.com/archives/955 (strongly recommended to see) Import MySQL data into HDFs 1. Manually import using MySQL tools The simplest way to import MySQL's exported data into HDFs is to use command-line tools and MySQL statements. To export the contents of the entire data table or the entire database

Note: The following information refer to the teacher Dylan What is a sqoop? Sqoop is an open source tool, Sqoop SQL to Hadoop, used primarily in Hadoop (Hive) and traditional databases (MySQL, PostgreSQL ...) Data transfer, the development of the main evolution of the two ma

These are from the official website of Sqoop, is 1.4.3 version of the document, if there is a mistake, I hope you will correct me. 1. Import data using Sqoop Sqoop import--connect jdbc:mysql://localhost/db--username foo--table TEST2. Account password Sqoop import--connect jdbc:mysql://database.example.com/employees \

Tags: style class blog Code color useThe Sqoop version for the 1.4.4,hadoop version for the 2.2.0,hive version for the 0.11.0,hive metadata is stored in MySQL, and when you use Sqoop to import data from MySQL to hive, you are always prompted not to find the hive database that you specified. In fact, the database already exists in hive, the hive path is also set i

Test The use of Mysql database Prerequisite: Import the MySQL jdbc jar package ① Testing the database connection Sqoop list-databases–connect jdbc:mysql://192.168.10.63–username Root–password 123456 use of ②sqoopAll of the following commands have a space after each line, and do not forget(None of the following 6 commands have been successfully tested) Sqoop Export–connectJdbc:mysql://192.168.10.63/ipj–usern