hive active

Getting Started with Hive (ii) metadata for hive architecture 0Hive Hive stores metadata in the database (Metastore), supports databases such as MySQL, Derby, and Oracle, and Hive defaults to the Derby database The metadata in hive includes the name of the table

Label:For Windows 32-bit and 64-bit systems that have multiple versions of Hive ODBC Connector, the version must be fully matched during installation (that is: 32-bit Connector can only be run on 32-bit systems, and 64-bit Connector can only be 64-bit system operation) Reference: http://doc.mapr.com/display/MapR/Hive+ODBC+Connector#HiveODBCConnector-HiveODBCConnectoronWindows Directory: Package

Today we will study the maintenance of the Active Directory database, as you all know, under%systemroot%\ntds\ there is a Ntds.dit file, this file is our ad database, but in this directory, there are some other documents, what are these to do? Furthermore, if my ad database is out of order, how can I fix it? Also, can you move the ad database to a location? How to optimize the ad database? With these questions, let's take a look at today's lesson! (i

explanationHive is a data Warehouse tool based on Hadoop that maps structured data files to a database table and provides a simple SQL query that translates SQL statements into MapReduce tasks. The advantage is that the learning cost is low, the simple mapreduce statistic can be realized quickly by SQL statement, and it is very suitable for the statistic analysis of data Warehouse without developing special MapReduce application. Hive ArchitectureThe

what is hive. Data warehousing: Storing, querying, and analyzing large-scale datasql language: Easy-to-use class SQL query languageO Programming Model: Allows developers to customize UDFs, Transform, Mapper, and Reducer to make it easier to do work that complex mapreduce cannot doo data format: process data in any data format on Hadoop, or use an optimized format to store data on Hadoop, rcfile,orcfile,parquestData Services: HiveServer2, multiple API

JVM tuning-calculate the active data size and jvm tuning Active Data Active Data, sometimes called survival data, refers to the size of long-lived objects in the Java heap when the application is in stable running state. In other words, the space occupied by the Java heap after FullGC in the stable running state of the application (memory usage ). 1. Importance

In the previous section we already know how to create and use active objects, and you have a certain understanding of the creation and use of active objects. In this section I will delve into the activities of the object mechanism, divided into "active object Workflow", "Signal lost error" two parts, for everyone to analyze the working principle of the

Go: http://www.jb51.net/diannaojichu/55058.html active partition is the computer boot partition, the operating system's boot files are installed in this partition, Windows system is generally default to C drive, and Linux is based on the specific settingsWhen you start the system, the operating system on the active partition executes a process called a drive image that assigns a drive name to the primary pa

1. Hive's inner tableThe inner table of Hive is the normally created table, which is already mentioned in http://www.cnblogs.com/raphael5200/p/5208437.html;2, the appearance of hiveTo create a hive's appearance, you need to use the keyword External:CREATE EXTERNAL TABLE [IF not EXISTS] [db_name.] TABLE_NAME [(col_name data_type [COMMENT col_comment], ...)] [COMMENT Table_comment] [Partitioned by (Col_name data_type [COMMENT col_comment], ...)]

1. Create the lib121 directory under the hive0.13.1 version Cd/opt/cloudera/parcels/cdh/lib/hive;mkdir lib1212. Download the hive1.2.1 version and copy all files from this version of Lib to lib121 3. Modify the Hive_lib variable in/opt/cloudera/parcels/cdh/lib/hive/bin/hive hive_lib=${hive_home}/lib121 4. Update the JLine jar package on Hadoop and remove the ol

I. Introduction to the active catalogue Active Directory (Active Directory) is the component that provides directory services in a Windows Server 2003 domain environment. Directory services are introduced on the Microsoft platform from Windows Server 2000, so we can understand that the Active Directory is a way of imp

1. Download the source code on the hive's official website and upload it to the server2. Go to the directory to unzipTAR-ZXVF apache-hive-0.14.0-src.tar.gz3. Go to the web directoryCD APACHE-HIVE-0.14.0-SRCCD Hwi/web4. Make the Web source into a zip packageZip hive-hwi-0.14.0.zip./*//packaged into a. zip file.5. Change the zip suffix to warHive-hwi-0.14.0.war6. C

"Programming Hive" Reading notes (two) Hive basics: first read is browse. Build knowledge index, because some knowledge may not be able to use, know is good. The parts of interest can be studied more. After the use of the time to look specifically. and combined with other materials.Chapter 3.Data Types and File FormatsRaw data types and collection data typesSelect out of data, the delimiter between columns

Part I: Building a hive JDBC development environmentBuild:Steps ? New project Hivetest? Import hive-dependent packages? Hive Command line start thrift service? Hive--service Hiveserver Part Two: Introduction of basic Operation ObjectsConnectionDescription: The connection object connected to

Zabbix Agent Active Batch tuning client for Active mode monitoring Zabbix_server end when the number of hosts is too high, the server side to collect data, Zabbix will have serious performance problems, the main performance is as follows: 1, when the monitoring end reached a magnitude, the web operation is very card, easy to appear 502 2. Layer Break 3, the Open process (pollar) too much, even i

1. Active Directory (AD) Active directory is a directory service for Windows Server. It stores information about the various objects on the network and makes that information easy for administrators and users to find and use. The Active Directory directory service uses structured data storage as the basis for the logical hierarchy of directory information. Integr

Image Segmentation (v) Introduction to the snake model of active contour model[Email protected]Http://blog.csdn.net/zouxy09In the "Image segmentation (a) Overview" We have a simple understanding of the current mainstream image segmentation methods. Below we mainly study based on the energy functional partition method. Here we learn the simple knowledge of the snake model, and the level set model will be mentioned in the post.A segmentation method base

The hive Custom function consists of three UDFs, UDAF, UDTFUDF (User-defined-function) one in and outUDAF (user-defined Aggregation funcation) aggregation function, the more in one out. Count/max/minUDTF (user-defined table-generating Functions) One more step out, such as lateral view explore ()How to use: Add a custom function's jar file in a hive session, and then create a function to use itUdf1, the UDF

HIVE-UDF operationOperation procedure of UDF:Add A custom function to the jar file in the HIVE session , and then create the function, The function is then used. Below is an example of the following topics:Topic: Statistics of PV and UV for each activityFirst, Java through the regular expression, intercept the title name.Take a link to intercept the red string.http://cms.yhd.com/sale/vtxqclczfto? tc=ad.0.0.

One, hive command line 1, hive support some of the commands Command Description quit Use quit or exit to leave the interactive shell. Set Key=value Use the To set value of particular configuration variable. One thing to note here's if you misspell the variable name, the CLI won't show an error. Set This would print a list of configuration variables that is overridden by user or