Two methods to import nginx logs to hive: 1. Create the CREATETABLEapachelog table in hive (ipaddressSTRING, identdSTRING, userSTRING
Two methods to import nginx logs to hive: 1. create table apachelog (ipaddress STRING, identd STRING, user STRING) in hive
Two methods to import nginx logs to
Install and configure hive
1. Prerequisites
To install hadoop first, see the http://blog.csdn.net/hwwn2009/article/details/39889465 for Installation Details
2. Install hive
1) download hive. Note that the hive version is compatible with the hadoop version.
wget http://apache.fayea.com/apache-mirror/
Hive Introduction
Hive is a data warehouse infrastructure built on Hadoop. It provides a range of tools that can be used for data extraction and transformation loading (ETL), a mechanism for storing, querying, and analyzing large data stored in Hadoop. Hive defines a simple class SQL query language, called HQL, that allows users who are familiar with SQL to quer
Hive common commands to organize---coco
1. After the row-to-column function is turned on:Set hive.cli.print.header=true; Print column namesSet hive.cli.print.row.to.vertical=true; Turn on row to column function, if you must turn on the Print column name functionSet hive.cli.print.row.to.vertical.num=1; Set the number of columns to display per row 2. Errors during use:hive-hiveconf hive.root.logger=debug,console//restart debugging. 3. The three ways
Live is a good database management tool. The following describes how to import mysql Data into hive. For more information, see.
The following is an instance that imports data from mysql into hive.
-Hive-import indicates importing data to hive, and-create-hive-table indicates
Hive is a Hadoop-based data warehouse platform.
Hive provides SQL-like query languages. Hive data is stored in HDFS. Generally, user-submitted queries are converted into MapReduce jobs by Hive and submitted to Hadoop for running.
We started from Hive installation and gradual
Serde Property
The statement to increase the Serde property is as follows:
ALTER TABLE TABLE_NAME SET SERDE serde_class_name [with Serdeproperties serde_properties]
ALTER TABLE table_name SET S Erdeproperties
(property_name = Property_value,property_name = Property_value, ...)
This statement allows the addition of custom metadata to the Serde object. The Serde property is passed to the table Serde when Serde is initialized by hive. Modifying the s
preparatory work1. Built Hadoop Distributed System 2.apache-hive-1.2.1-bin.tar.gz and Mysql-connerctor-java-5.1.43-bin.jar
Create the Hive database on the MySQL database to save the hive meta data
#mysql-u root-p
> Input password
mysql>create database hive;
installation
Decompression apache-
Version Description: hive-0.13.1
Hbase-0.96.0/hbase-0.98.2
Step 1: Execute the hive-related hbase table creation Statement on the hive ClientHive_user_info
User_info table in hbase
Create Table hive_user_info (A string, B string, C string,D string, E string,F String, G String)Partitioned by (DT string)Stored by 'org. Apache. hadoop.
Hive Integrated HBase effectively leverages the storage attributes of the HBase database, such as row updates and column indexes. Keep in mind the consistency of the HBase jar packages during integration. the implementation of the integration function of hive and hbase is to communicate with each other by using the API interface between them, and communicate with each other mainly by relying on the Hive_hba
1. First set the small file standard in the hive-site.xml. lt; propertygt; lt; namegt; hive. merge. smallfiles. avgsizelt; namegt; lt; va
1. First set the small file standard in the hive-site.xml. lt; propertygt; lt; namegt; hive. merge. smallfiles. avgsizelt;/namegt; lt; va
Homepage → Database Technology
Reference website: https://cwiki.apache.org/confluence/display/Hive/GettingStarted 1. Server Requirements:
Java1.7 or above, recommended java1.8 hadoop2.x 2. Get installation package
Website address: https://mirrors.tuna.tsinghua.edu.cn/apache/hive/can choose the appropriate version to download
Download Address: https://mirrors.tuna.tsinghua.edu.cn/apache/hive/
Hive Bucket Research document
, NB Sp , NB Sp , NB Sp , NB Sp , NB Sp , NB Sp from Jing
1. Hive Sub-bucket Overview ... 3
2 . Hive bucket Use ... 3
2.1 Basic Operation ... 3
optimization of join in 2.2
Tags: sqoop hiveDemandImport the Business base table Delta data from Oracle into Hive, merging with the current full scale into the latest full scale. * * * Welcome reprint, please indicate the source * * * http://blog.csdn.net/u010967382/article/details/38735381Designthree sheets involved:
Full scale: a full-scale base data table with the last synchronization time saved
Delta Tables : Incremental temporary tables
updated full-scale
Tags: hiveThe Sentry permission control is configured by entering the GRANT and REVOKE statements via the Beeline (Hiveserver2 SQL Command line interface). The syntax is similar to some of the mainstream relational databases today. It is important to note that when the Sentry service is enabled, we must use the Beeline interface to perform hive queries, and the hive CLI does not support sentry.CREATE ROLE S
One of the built-in optimization mechanisms provided by Hive includes MapJoin. Before Hivev0.7, you need to provide MapJoin instructions so that Hive can optimize MapJoin. After Hivev0.7
One of the built-in optimization mechanisms provided by Hive includes MapJoin. Before Hive v0.7, you need to provide MapJoin instruct
Bind hive to a local mysql database
I suddenly wrote an article about changing the hive metadatabase from the default local derby to bind to a remote mysql database. I flipped through the cloud notes and found that it was actually true, share it with you now ~~
Environment:
Operating System: Centos6.5mysql: 5.6 hive: 0.13.1hadoop: 1.2.1
1. Configure mysql
1. I
Build Hive GUI add war package to the lib directory of hive: Download add to usrlibhivelibhive-hwi-0.9.0-cdh4.1.0.war add configuration to hive-site.xmlpropertynamehive.hwi.listen.hostnamevalue0.0.0.0valuedescriptionThisisthehostaddresstheHiveWebInterf
Build Hive GUI add war package to the lib directory of
For more information about HBase and Hive Association tables:There are 2 forms of hive creation associated HBase tables:The first type:Hive> CREATE TABLE hive (ID string,name string, age int)> Stored by ' org.apache.hadoop.hive.hbase.HBaseStorageHandler '> With Serdeproperties ("hbase.columns.mapping" = ": Key,cf:name,cf:age")> tblproperties ("hbase.table.name" =
Hive is a client that uses a similar SQL statement to operate a file stored in HDFs, a data warehouse that needs to be used in conjunction with a relational database, and hive comes with a relational database derby, but it's not officially recommended, and we use MySQL here. The function of relational database is to make the data structure of HDFS, and to correspond the structure and map.MySQL is used to st
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