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Running Environment: Primary: 192.168.111.150Standby: 192.168.111.15119425111.152os: CentOS5.8PostgreSQL: 9.1.2 or later. Streaming Replication is supported. PostgreSQL cache details Compiling PostgreSQL on Windows Configuration and installation of LAPP (Linux + Apache + PostgreSQL + PHP) Environment in Ubuntu Install and configure phppgAdmin on Ubuntu Install Po
In the previous article, I talked about the xlog header. Today I will explain the record part in detail. I hope these two articles will help the xlog Study of postgresql: From: http://blog.csdn.net/lengzijian/article/details/7840332 First, let's take a look at the xlog log record structure: Xlogrecord records the control information of xlog. The data structure is as follows: Typedef struct xlogrecord{Pg_crc32 xl_crc;/* CRC verification co
main library backup will compete with the application for IO resources, originally also evaluated on-premises from the library backup, but we use the Pg_rman tool still need to initiate the start Backup and end Backup command in the main library, considering the network impact, coupled with the current IO resources are more abundant, so the backup temporarily or On the main library, subsequent consideration of migrating the backup operations to the slave library. Offsite database backup is achi
1. Download the source code $ mkdir /usr/downloads$ wget -c http://cn2.php.net/distributions/php-5.6.20.tar.gz$ tar -xvf php-5.6.20.tar.gz$ mv php-5.6.20 /usr/local/src$ cd !$ cd php-5.6.20 2. Read the installation Instructions $ ls -also$ less README$ less INSTALL 3. Installing dependent Packages $ yum install apr apr-util apr-devel apr-util-devel prce lynx 4. Installing httpd $ wget -c http://apache.fayea.com//httpd/httpd-2.4.20.tar.gz$ tar -xvf httpd-2.4.20.tar.gz$ cd httpd-2.4.20$ ./config
internal firewall of PostgreSQL, which represents one of the two most important configuration files in a PostgreSQL cluster. It allows the user to define any type of authentication based on the source of the request. A database administrator, understanding the pg_hba.conf file is critical because this file determines whether a slave is allowed to connect to mast
Redis Shards:Why shards: As Redis stores more and more data, the performance of Redis is getting worse!Current methods of sharding:1. Client ShardAt the application level of sharding, the program specifies what data is stored in the Redis advantage: more flexible disadvantage: Add a node expansion is very laborious 2, Agent Proxy shard Third party twemproxy use agent shortcomings, you agent what performance, then your whole redis performance is what kind of! 3. Redis cluster4, Codis (pea pod) Op
postgresql-9.4.3] # chkconfig postgresql on9.7 create a database operation history file[Root @ postgresql postgresql-9.4.3] # touch/home/postgres/pgsql/. pgsql_history[Root @ postgresql postgresql-9.4.3] # chown postgres: postgre
Manual PostgreSQL database initialization tutorial in windows, initialize postgresql Environment: win7 64 sp1PG: 9.3.5 1. Create the postgres user, and the password is also postgres: net user postgres postgres /add 2. Create a data directory under the root directory of the database: C:\Program Files\PostgreSQL\9.3>md data 3. Remove the administrator permission on
PostgreSQL tutorial (13): database management details, postgresql details I. Overview: A database can be considered as a name set of an SQL object (database object). Generally, each database object (table, function, etc.) belongs to only one database. However, for some system tables, such as pg_database, it belongs to the entire cluster. More accurately, a databa
based on the installation script, and start a PostgreSQL instance (called a cluster) with the name of main. remember to use main later.2. Modify the file2.1 Modify/usr/bin/pg_ctlcluster/Usr/bin/pg_ctlcluster is a script used to control the startup, stop, and restart of the PostgreSQL server, facilitating the control of the P
Comparison between PostgreSQL and MySQL Features MySQL PostgreSQL Instance Run the MySQL Command (mysqld) to start the instance. One instance can manage one or more databases. One server can run multiple mysqld instances. An instance manager can monitor various instances of mysqld. Start the instance by executing the Postmaster process (pg_ctl. One instance can manage one or mo
the Greenplum based on PostgreSQL development, it is good to solve the problem of usability and extensibility, and provides a very powerful parallel computing capability. For OLTP applications, business characteristics determine their requirements: high availability, consistency, short response times, support transactions and joins, and more. Databases and NoSQL as more and more NoSQL products emerge, they have features that many relational databases
PostgreSQL tutorial (1): Detailed description of data tables and detailed description of postgresql I. Table definition: For any relational database, tables are the core and basic object units of data storage. Now let's start from here.1. Create a table:Copy codeThe Code is as follows:Create table products (Product_no integer,Name text,Price numeric);2. delete a table:Copy codeThe Code is as follows:Drop ta
# dependent package #. /configure -- prefix =/usr/local/postgresql-9.6.1 -- with-perl -- with-python -- with-blocksize = 32 -- with-wal-blocksize = 64 -- with-wal-segsize = 64 # make make install # configuration after installation [root @ no De1 postgresql-9.6.1] # cat/etc/profile. d/postgresql. shexport PATH = $ PATH:/usr/local/pgsql/binexport PGDATA =/data/pg
+| | || |postgres=CTc/postgrestemplate1| Postgres|utf8|zh_cn. Utf-8|zh_cn. utf-8|=c/postgres+ || | || postgres=ctc/postgres (3rOWS)-bash-4.1$psqlpsql (9.2.4) type "Help" forhelp.postgres=#create databasetestdb; createdatabasepostgres=#\ctestdb; youarenowconnectedtodatabase "TestDB" asuser "Postgres". Testdb=#createtabletest (Idint,nametext,ageint); createtabletestdb=#\dtesttable "Public.test" Column |Type|Modifiers--------+---------+-----------id |integer|name|text |age|integer|testdb=#insertint
(Linux + Apache + PostgreSQL + PHP) Environment in Ubuntu Install and configure phppgAdmin on Ubuntu Install PostgreSQL9.3 on CentOS Configure a Streaming Replication cluster in PostgreSQL How to install PostgreSQL 7/6 and phpPgAdmin in CentOS 5/6. 4 ------------------------------------ Lili split line ---------------
house. This article permanently updates the link address: ------------------------------------ Lili split line ------------------------------------ Install PostgreSQL 6.3 on yum in CentOS 9.3 PostgreSQL cache details Compiling PostgreSQL on Windows Configuration and installation of LAPP (Linux + Apache + PostgreSQL +
Tags: postgresq Characteristics Mysql PostgreSQL Instance Launch the instance by executing the MySQL command (MYSQLD). One instance can manage one or more databases. A single server can run multiple mysqld instances. An instance manager can monitor individual instances of mysqld. Launch the instance by executing the Postmaster process (PG_CTL). An instance can manage one or more databases, which form a
Http://bbs.chinaunix.net/thread-1688208-1-1.html Characteristics Mysql PostgreSQL Instance Launch the instance by executing the MySQL command (MYSQLD). One instance can manage one or more databases. A single server can run multiple mysqld instances. An instance manager can monitor individual instances of mysqld. Launch the instance by executing the Postmaster process (PG_CTL). An instance can manage one
From: http://bbs.chinaunix.net/thread-1688208-1-1.html Features MySQL PostgreSQL Instance Run the MySQL Command (mysqld) to start the instance. One instance can manage one or more databases. One server can run multiple mysqld instances. An instance manager can monitor various instances of mysqld. Start the instance by executing the postmaster process (pg_ctl. One instance can manage one or more databases, which
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