greenplum database tutorial

Greenplum (GPDB) is open source !~. Greenplum (GPDB) is open source !~ Greenplum Database (GPDB) is a non-shared large-scale parallel processing Database. it is mainly used to process large-scale data analysis tasks, including data warehouse and

all_hosts gpssh-exkeys-f seg_hosts 4.5 Packaging Distribution installation files (Master) 4.5.1 packaged distributionTAR-CF GP5. 6. Tar db/ -f/home/gpadmin/gpconfig/seg_hosts gp5. 6. Tar =:/opt/greenplum4.5.2 Unzip the distribution file (directory structure to and master node always) and create data directoryGpssh-F all_hosts (Connect all node, batch) /opt/greenplum/ -xf gp5. 6. Tar -p/usr/local/yiliao/gpdata/gpmaster -p/usr/local/yiliao/gp

Any system upgrade has a quantitative change to a qualitative transition: when the version is small, it is usually very simple, the version is a big difference, is a nightmare. But when the version is small, we tend to be complacent. This article actually records from GP4.2.7.2 to 4.3.5.0 upgrade process, from the version number see little difference, but the GP version of the name, the second change is already a big upgrade. Another thing to note is that the upgrade of the GP

GreenPlum database fault recovery test This article describes gpdb master fault and recovery testing and segment fault recovery testing. Environment Introduction:Gpdb version: Binary version 5.5.0OS: CentOS linux 7.0Master segment: 192.168.1.225/24 hostname: mfsmasterStadnby segemnt: 192.168.1.227/24 hostname: server227Segment Node 1: 192.168.1.227/24 hostname: server227Segment Node 2: 192.168.1.17/24 hostn

Tags: gpdb mirror segment primary segment master failoverThis article describes the master failure and recovery test for gpdb and the segment failure recovery test.Environment Introduction:GPDB version: 5.5.02 binary versionOperating system version: CentOS Linux 7.0Master segment:192.168.1.225/24 Hostname:mfsmasterStadnby segemnt:192.168.1.227/24 hostname:server227Segment node 1:192.168.1.227/24 hostname:server227Segment node 2:192.168.1.17/24 hostname:server17Segment node 3:192.168.1.11/24 host

interrelated SQL and so on. MySQL is more suitable for simple OLTP applications with business logic. For PostgreSQL, regardless of the business logic is simple or complex, OLTP or OLAP load, PostgreSQL can support, also have a very mature products, many well-known OLAP database products such as Greenplum, AWS Redshift, etc. are the base Developed in PostgreSQL. The query optimizer for PostgreSQL is very po

Greenplum + Hadoop learning notes-11-distributed database storage and query processing, hadoop-11- 3. 1. Distributed Storage Greenplum is a distributed database system. Therefore, all its business data is physically stored in the database of all Segment instances in the clu

Failed to connect Greenplum with the report tool, there is no error in the report schema. The Search_path should be set up after judgment. 1) Connection Greenplum C:\windows\system32>psql-h 1.2.345.678-p 5432-d tpc_1-u gpuser 2) View Search_path tpc_1# show Search_path; 3) Modify Search_path tpc_1=# ALTER DATABASE tpc_1 set Search_path to "$user", Public, "

:: xx2015) Time on Machine(Wed May20 15:: Approx .2015) gpscp -f /home/gpadmin/20150523exp/allhosts /etc/resolv.conf =:/etc/resolv.conf gpssh -f /home/gpadmin/20150523exp/allhosts => service ntpd stop => ntpdate ntp.citicsinfo.com => service ntpd start => exit gpssh -h sdw22 -h sdw23 -h sdw24 => echo server ntp.citicsinfo.com >> /etc/ntp.conf => service ntpd stop => service ntpd start => exit The newly added machine operating system version is inconsistent with the existing machine

databaseConnected to Database "DEVDW" as User "Gpadmin".devdw=# CREATE TABLE tab_01 (id int); Create a tableNotice:table doesn ' t has ' distributed by ' clause--Using column named ' ID ' as the greenplum Database data distribution Key for this table.Hint:the ' distributed by ' clause determines the distribution of data. Make sure column (s) chosen is the optim

The Greenplum Database (hereinafter referred to as the GP database) supports custom functions, and the following describes the custom simple functions written by Python. The clustering function is more complex and self-sensing is not suitable for the GP database.The Python custom function describes what GP can do as long as Python can handle the row-level data.Ex

Label:Environmental information:greenplum:greenplum Version: ' Postgres (greenplum Database) 4.3.8.2 build 1 'Oracle:Release 11.2.0.1.0 Production1. Oracle Client DeploymentBefore using the SQLULDR2 tool, you first need to deploy the Oracle client on the Master node of Greenplum ( hereinafter referred to as GP) because SQLULDR2 need to use shared libraries such a

thinkphp Connection database and master-slave database setup tutorial, thinkphp master-Slave This paper describes in detail the thinkphp connection database and the master-slave database setup method, which is very practical in the thinkphp project development. The implemen

SQLite tutorial (10): Memory Database and temporary database, sqlite tutorial I. Memory Database: In SQLite, databases are usually stored in disk files. However, in some cases, we can keep the database in the memory. The most comm

)] is the selector that defines calling the database table in the attribute settings. Lines 30-36 in the same Code define the attributes of a database. Enter the following content in the Code: 1 @model DynamicCodeGenerate.myModel 2 @{ 3 foreach(var item in Model.DataBase.Tables){ 4 @:TableName:@item.Name 5 foreach(var itemcolumn in item.Columns) 6 { 7 @:Column:@itemcolumn.

PHP's YII framework uses database configuration and SQL Operations Examples tutorial, yii example Tutorial Database access (DAO)YII contains a data access layer (DAO) built on top of the PHP PDO. DAO provides a unified set of APIs for different databases. Where ActiveRecord provides interaction between the

Database optimization tutorial (I) preface definition of slow query, and introduction of database optimization tutorial Preface Recently, I helped the company optimize the database. Based on what I learned, I used the learning knowledge step by step in practice, and finall

PHP connection and Operation MySQL database basic tutorial, MySQL basic tutorial Start from here What is my blog, background database? Yes, it is MySQL, the server side of the script is PHP, the entire framework uses WordPress. PHP and MySQL, like couples, are always working together. Now here, the collection of PHP,

Oracle full recovery database tutorial, oracle Database tutorial Oracle full recovery database tutorial Completely recover the data file rman target/list backup summary; check whether there is a backup. If there is no backup, p

Oracle Database Change and backup database step tutorial, oracle backup tutorialOracle Database Change 1. Stop the Application Middleware involved/lock the oracle user alter user GWM_BL_UAT account lock View select username, account_status from dba_users where username = 'gwm _ BL_UAT '; 2. use plsql tool-session kill