sqoop import to hive

Tags: Big Data eraSqoop as a Hadoop The bridge between the traditional database and the data import and export plays an important role. by expounding the basic grammar and function of Sqoop, the paper deeply decrypts the function and value of Sqoop. First, what is Apache Sqoop?Clouderadeveloped byApacheOpen Source p

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 alwa

hbase4. Use Java to manipulate hbase5. Use MapReduce code to import bulk data into HBase3rd topic: combat Pig(with the ability to master Pig Enterprise Development and management)1. Pig architecture2. Using pig to manipulate data inside3. Using Pig instance data4th topic: Live Hive(with the ability to master hive Enterprise-level development and management)1.

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 database, which is assumed to be student, in wh

Tags: file uri ora shel ACL created address multiple arcBasic useAs in the shell script below: #Oracle的连接字符串, which contains the Oracle's address, SID, and port numberConnecturl=jdbc:oracle:thin:@20.135.60.21:1521:dwrac2#使用的用户名Oraclename=kkaa#使用的密码Oraclepassword=kkaa123#需要从Oracle中导入的表名Oralcetablename=tt#需要从Oracle中导入的表中的字段名Columns=area_id,team_name#将Oracle中的数据导入到HDFS后的存放路径hdfspath=apps/as/hive/$oralceTableName#执行导入逻辑. Importing data from Oracle into HD

1.sqoop importing data from hive into MySQLFor example:Sqoop export--connect jdbc:mysql://10.18.101.15:3306/wda--username restdbuser--password 123456--table adl_trend_num _android--export-dir/apps/hive/warehouse/adldb.db/adl_trend_num_android/date_stamp= $date-- Input-fields-terminated-by ' \ t '2.sqoop importing data

hbase4. Use Java to manipulate hbase5. Use MapReduce code to import bulk data into HBase3rd topic: combat Pig(with the ability to master Pig Enterprise Development and management)1. Pig architecture2. Using pig to manipulate data inside3. Using Pig instance data4th topic: Live Hive(with the ability to master hive Enterprise-level development and management)1.

17:52:20.02 John Doe 2015-10-10 17:52:20.0(1) Create Sqoop JobSqoop Job--create JobName--Import--connect jdbc:oracle:thin:@192.168.27.235:1521/orcl--username DATACENTER--passwo Rd Clear--table oracletablename--hive-import--hive-table hivetablename--incremental lastmodified-

://10.120.10.11:3306/--username sqoop--password sqoopLists the names of all databases in MySQLimport from MySQL to HDFs Sqoop # #sqoop commandImport # # indicates an imported--connect Jdbc:mysql://ip:3306/sqoop # # tell jdbc, connect MySQL URL--username Sqoop # # user name

Sqoop imported hive field names from mysql, sqoophive There are some keyword restrictions in hive, so some field names are available in mysql, but it won't work when it comes to hive. For example, order must be changed to order1. The following lists some of the field names we found that cannot be used in

:# Create Hive data table Pms.yhd_categ_prior_userhive-e " set Mapred.job.queue.name=pms; set mapred.job.name=[cis]yhd_categ_prior_user;--Hive DDL DROP TABLE IF EXISTS pms.yhd_categ_prior_user;create TABLE Pms.yhd_categ_prior_user (category_id bigint, category_name string, Categor Y_level int , Default_import_categ_prior int , User_import_categ_prior int , Default_eliminate_categ_prior int , User_eliminat

time of MapReduce is very small.But hive is not all SQL statements mapped to a MapReduce program, the only exception (not configured) is: SELECT * FROM table_name LIMIT, because this is only the first few data in the interception table;(5) Processing cleaning data using hive and exporting to a temporary tableThe data that is really needed will be drawn in this step, that is: the user clicks on the category

[Author]: KwuSqoop export data from the relational library to Hive,sqoop supports the number of conditions in the query relational library to the Hive Data Warehouse, and the fields do not need to match the fields in the Hive table.Specific implementation of the script:#!/bin/sh # Upload logs to HDFs today= ' date--d