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usage of Hive Beeline Reprint: http://www.teckstory.com/hadoop-ecosystem/hive-new-cli-beeline-for-hive/ Hive is the Data Warehouse software of Hadoop ecosystem. It provides a mechanism to project structure onto large data sets stored in Hadoop. Hive allows to query this data
1. Typically, the job produces one or more map tasks through the directory of input.The main determinants are: The total number of input files, the file size of input, the size of the file block set by the cluster (currently 128M, can be set dfs.block.size in hive; command to see, this parameter can not be customized modification);2. For example:A) Assuming that the input directory has 1 file A and a size of 780M, then Hadoop separates the file a into
Hive is a framework that occupies and plays an important role in the ecosystem architecture of Hadoop, and it is used in many practical businesses, so that the popularity of Hadoop is largely due to the presence of hive. So what exactly is hive and why it occupies such an important position in the Hadoop family, this article will focus on Hive's architecture (arc
Hive Installation (hadoop2.6.0 hive 1.2.1)Website address: http://hive.apache.org/downloads.html three different modesInline mode: Metadata is kept in the inline derby mode, allowing only one session to connect to local standalone mode: Install MySQL locally, bar metadata in MySQL remote mode: Meta data placed in remote MySQL database 1. Embedded mode: (1), modify/home/lin/hadoop/apache-
1. Hive IntroductionHive is an open-source hadoop-based data warehouse tool used to store and process massive structured data. It stores massive data in the hadoop file system instead of the database, but provides a data storage and processing mechanism for database-like databases, and uses HQL (SQL-like) the language automatically manages and processes the data. We can regard the volume of structured data in hive
//server110 :3306/hive?createdatabaseifnotexist=trueHive-site.xml configuration of hive MySQL for metadata
# HTTP://ARCHIVE.APACHE.ORG/DIST/HIVE/HIVE-2.1.1/# ================================================================== Installing HiveTAR-ZXVF apache-hive-2.1.1-bin.tar.gz-c/usr/localmv/usr/local/apache-hive-2.1.1-bin/usr/local/hive-2.1.1rm–r ~/ APACHE-
apache-hive-2.1.0 Installation Installing Hive Install the Namenode on Hadoop and copy the installation files to Linux/usr/hadoop/apache-hive-2.1.0-bin.tar.gz Extract: TAR–ZXVF apache-hive-2.1.0-bin.tar.gz Add to environment variable Vi/etc/profile Edit #hive Export Hive_h
Compared with many tutorials, Hive has introduced concepts first. I like to install them first, and then use examples to introduce concepts. Install Hive first. Check whether the corresponding yum source has been installed. If the yum source blog. csdn. netnsrainbowarticledetails42429339hive is not installed according to the yum source file written in this tutorial Compared with many tutorials,
I. Installation of Hive The components are arranged as follows: 172.16.57.75 bd-ops-test-75 mysql-server 172.16.57.77 bd-ops-test-77 Hiveserver2 1. Install Hive Install the Hive on 77: # Yum Install hive Hive-metastore
One, hive cluster installation1, install Hadoop, and start HDFs and yarn.2, download Hive 1.2.1Http://apache.fayea.com/hive/hive-1.2.1/Apache-hive-1.2.1-bin.tar.gzUploading files to the cluster3. Installing hive[Email protected]:~
[A "," B "," C "] 3 [D "," E "," F "] 4 [D "," E "," F "] Add a lateral view: Select mycol1, mycol2 from basetable lateral view explode (col1) mytable1 as mycol1 lateral view explode (col2) mytable2 as mycol2; The execution result is: Int mycol1 String mycol2 1 "" 1 "B" 1 "C" 2 "" 2 "B" 2 "C" 3 "D"
Union syntax Select_statement Union all select_statement... Union is used to combine the result sets of multiple select statements into an independent result set. Currently, only union all (BAG Union) is supported ). Duplicate rows are not eliminated. The number and name of columns returned by each select statement must be the same. Otherwise, a syntax error is thrown. If some extra processing is required for the Union result, the entire statement can be embedded in the from clause, as
Label: Start Thriftserver in spark after modification and then connect in beeline mode under Spark's Bin or write a. sh file every time you execute it directly . sh file contents such as:./beeline-u jdbc:hive2://yangsy132:10000/default-n root-p YangsiyiSpark on Hive configures Hive's metastore to MySQL
Hive Installation Deployment(Installation will have version issue hadoop1.0 version above please install hive-0.90 testhadoop2.0 above Please install hive-0.12.0 or the latest version of the test)Hive-0.9.0:http://pan.baidu.com/s/1rj6f8hive-0.12.0:http://mirrors.hust.edu.cn/apache/
Tags: store rewritten cat POS Log monitor Web page infhttp://blog.csdn.net/wtq1993/article/details/52435563 http://blog.csdn.net/yeruby/article/details/51448188Hive on Spark vs. Sparksql vs Hive on TezThe previous article has been completed Sparksql,sparksql also has Thriftserver service, here say why also choose to engage in Hive-on-spark: Sparksql-thriftserver all the results of all memory, fast
Label: First, an overview of the task map: The process is to first delete the files on HDFs with Thdfsdelete, then import the data from the organization tables in Oracle into HDFS, establish hive connection-"Hive Build Table-" Tjava Get system Time-" Thiveload Import the files on HDFs into the hive table. The settings for each of these components are described b
# CD $HIVE _home/scripts/metastore/upgrade/mysql [Dev root @ sd-9c1f-2eac/usr/local/src/apache-hive-2.1.1-bin/scripts/metastore/upgrade/mysql]# ls001-hive-972.mysql.sql 027-hive-12819.mysql.sql Hive-schema-2.0.0.mysql.sql002-hive-
2.3 Hive Internal Introduction: P44The jar file under the $HIVE _home/lib is a specific functional part; (CLI module) Other components, Thrift services, remote access to other process features, and the ability to access hive using JDBC and ODBC; all hive clients need a Metastore Service (meta-data Service), which is us
Label: Environment:hadoop2.2.0 hive0.13.1 Ubuntu 14.04 LTS java version "1.7.0_60"oracle10g * * * Welcome reprint. Please indicate source * * * http://blog.csdn.net/u010967382/article/details/38709751Download the installation package at the following addressHttp://mirrors.cnnic.cn/apache/hive/stable/apache-hive-0.13.1-bin.tar.gz The installation package is extracted to the server/home/fulong/
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