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安装过程： 1、configuration –prefix=PREFIX install all files under the directory PREFIX instead of usr/local/psql –with-pgport=NUMBER set NUMBER as the default port number for server and clients,the default is 5432. –with-segsize=SEGSIZE（控制表的大小） set the segment size,in gigabytes,large tables are divided into multiple operating-system files,each of size equal to the segment size. –with-blocksize=BLOCKSIZE set the block size,in kilobytes.this is the unit of starage and i/o within tables.the defaules,8 kilobytes,is susitable for most situnations;but other values may be usefulin special cases,the value must be a power of 2 between 1 and 32(jukobyrtes). –with-wal-segsize=SEGSIZE set the wal segment size,in megabytes,this is the size of each individaul file in the wal log.it may be useful to adjust this size to control the granularity of wal log shipping.the default size is 16 megabytes.the value must be a power of 2 between 1 and 64(megabytes). –with-wal-blocksize=BLOCKSIZE set the wal block size,in kilobytes.this is the unit of storage and i/o within the wal log,the default,8 kilobytes,is suitable for most situations;but other values may be useful in special cases.the value must be a power of w between 1 and 64(kilobytes). 2、build gmake gmake world 3、installing the files gmake install gmake install-world 4、add a os user account #groupadd postgres #useradd postgres #passwd postgres #chown -R postgres:postgres /pgdir 5、creating a database cluster（数据库初始化） A database cluster is a collection of databases that is managed by a single instance of a running database server. In file system terms,a database cluster will be a single directory under which all data will be stored.we call this the data direcotry or data area. as an alternative to the -D option,you can set the environment variable PGDATA initdb -D /usr/local/pgsql/data/ –locale=C –encoding=UTF8 pg_ctl -D /usr/local/pgsql/data initdb 6、starting the database server postgres -D /usr/local/pgsql/data –前台启动方式，退出终端即退出pg postgres -D /usr/local/pgsql/data >logfile 2>&1 & –后台启动方式 pg_ctl start -l logfile |
安装文档1：
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[root@node2 pg952]# tar -jxvf postgresql-9.5.2.tar.bz2 [root@node2 pg952]# cd postgresql-9.5.2 [root@node2 pg952]# cat INSTALL |more [root@node2 pg952]# mkdir /pg952 [root@node2 pg952]# ./configure –prefix=/pg952/ [root@node2 pg952]# gmake world [root@node2 pg952]# gmake install-world [root@node2 pg952]# id postgres [root@node2 pg952]# chown -R postgres:postgres /pg952/ [root@node2 pg952]# initdb -D /usr/local/pgsql/data/ –locale=C –encoding=UTF8 [root@node2 pg952]# pg_ctl start -l logfile |
安装文档2：
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linux系统依赖包： [root@localhost ~]# gcc –version gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-4) Copyright (C) 2010 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. [root@localhost ~]# make –version GNU Make 3.81 Copyright (C) 2006 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. This program built for x86_64-redhat-linux-gnu [root@localhost ~]# rpm -qa|grep readline compat-readline5-5.2-17.1.el6.x86_64 readline-devel-6.0-4.el6.x86_64 readline-6.0-4.el6.x86_64 [root@localhost ~]# rpm -qa|grep zlib zlib-1.2.3-29.el6.x86_64 zlib-devel-1.2.3-29.el6.x86_64 安装postgresql 5.2 [root@localhost mnt]# tar -jxvf postgresql-9.5.2.tar.bz2 [root@localhost mnt]# cd postgresql-9.5.2 [root@localhost postgresql-9.5.2]# ./configure –prefix=/pg952/ [root@localhost postgresql-9.5.2]# make world [root@localhost postgresql-9.5.2]# make install-world [root@localhost pg952]# cd /pg952/ [root@localhost pg952]# ll 总计 32 drwxr-xr-x 2 root root 4096 05-26 05:41 bin drwxr-xr-x 4 root root 4096 05-26 05:40 include drwxr-xr-x 4 root root 4096 05-26 05:40 lib drwxr-xr-x 5 root root 4096 05-26 05:40 share [root@localhost pg952]# id postgres uid=26(postgres) gid=26(postgres) groups=26(postgres) context=root:system_r:unconfined_t:SystemLow-SystemHigh [root@localhost pg952]# chown -R postgres:postgres /pg952/ [root@localhost pg952]# ll /pg952/ 总计 32 drwxr-xr-x 2 postgres postgres 4096 05-26 05:41 bin drwxr-xr-x 4 postgres postgres 4096 05-26 05:40 include drwxr-xr-x 4 postgres postgres 4096 05-26 05:40 lib drwxr-xr-x 5 postgres postgres 4096 05-26 05:40 share [root@localhost pg952]# su – postgres -bash-3.2$ vim .bash_profile –添加如下环境变量 [ -f /etc/profile ] && source /etc/profile export PGHOME=/pg952 export PGDATA=/pg952/data export LD_LIBRARY_PATH=$PGHOME/lib:$LD_LIBRARY_PATH PATH=$PGHOME/bin:$PATH -bash-3.2$ pg_ctl init –初始化数据库 -bash-3.2$ vim postgresql.conf –修改配置文件 #listen_addresses = ‘localhost’ # what IP address(es) to listen on; listen_addresses = ‘*’ -bash-3.2$ vim pg_hba.conf –修改配置文件 # IPv4 local connections: host all all 127.0.0.1/32 trust host all all 192.168.72.0/24 md5 -bash-3.2$ pg_ctl start -l $PGHOME/logfile 2>&1 >/dev/null –启动数据库 注意：pg_ctl start|status|stop|restart进行数据库启动 -bash-3.2$ ps -ef|grep post –查看数据库状态 -bash-3.2$ cat logfile -bash-3.2$ ps -f -U postgres 连接数据库： -bash-3.2$ psql –本地连接 psql (9.5.2) Type “help” for help. postgres=# \l ………. postgres-# \password –修改pg口令 Enter new password: Enter it again: C:\Users\wangwc>psql -h 192.168.72.130 -U postgres -d oracle –远程连接 |
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Postgresql shared memory usage：
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