# 添加postgres用户
[root@hadoop ~]# useradd postgres
[root@hadoop ~]# id postgres
uid=1001(postgres) gid=1001(postgres) 组=1001(postgres)
# 切换用户并创建目录
[root@hadoop postgres]# su - postgres
[postgres@hadoop ~]$ mkdir tmp sourcecode software shell log lib data app
# 解压
[postgres@hadoop ~]$ tar -xvf software/postgresql-9.6.18-1-linux-x64-binaries.tar.gz -C ~/app/
[postgres@hadoop app]$ cd /home/postgres/app/pgsql/
# 创建数据目录
[postgres@hadoop ~]$ cd
[postgres@hadoop ~]$ cd data/
[postgres@hadoop data]$ mkdir pgdata
# 配置环境变量
[postgres@hadoop ~]$ vim .bashrc
export PG_HOME=/home/postgres/app/pgsql
export PATH=$PG_HOME/bin:$PATH
export PGDATA=/home/postgres/data/pgdata
[postgres@hadoop ~]$ source .bashrc
[postgres@hadoop ~]$ which psql
~/app/pgsql/bin/psql
# 初始化数据库
[postgres@hadoop ~]$ initdb /home/postgres/data/pgdata
The files belonging to this database system will be owned by user "postgres".
This user must also own the server process.
The database cluster will be initialized with locale "zh_CN.UTF-8".
The default database encoding has accordingly been set to "UTF8".
initdb: could not find suitable text search configuration for locale "zh_CN.UTF-8"
The default text search configuration will be set to "simple".
Data page checksums are disabled.
fixing permissions on existing directory /home/postgres/data/pgdata ... ok
creating subdirectories ... ok
selecting default max_connections ... 100
selecting default shared_buffers ... 128MB
selecting default timezone ... PRC
selecting dynamic shared memory implementation ... posix
creating configuration files ... ok
running bootstrap script ... ok
performing post-bootstrap initialization ... ok
syncing data to disk ... ok
WARNING: enabling "trust" authentication for local connections
You can change this by editing pg_hba.conf or using the option -A, or
--auth-local and --auth-host, the next time you run initdb.
Success. You can now start the database server using:
pg_ctl -D /home/postgres/data/pgdata -l logfile start
# 查看数据目录
[postgres@hadoop ~]$ cd /home/postgres/data/pgdata
[postgres@hadoop pgdata]$ ll
总用量 48
drwx------. 5 postgres postgres 38 6月 3 15:57 base
drwx------. 2 postgres postgres 4096 6月 3 15:57 global
drwx------. 2 postgres postgres 17 6月 3 15:57 pg_clog
drwx------. 2 postgres postgres 6 6月 3 15:57 pg_commit_ts
drwx------. 2 postgres postgres 6 6月 3 15:57 pg_dynshmem
-rw-------. 1 postgres postgres 4468 6月 3 15:57 pg_hba.conf
-rw-------. 1 postgres postgres 1636 6月 3 15:57 pg_ident.conf
drwx------. 4 postgres postgres 37 6月 3 15:57 pg_logical
drwx------. 4 postgres postgres 34 6月 3 15:57 pg_multixact
drwx------. 2 postgres postgres 17 6月 3 15:57 pg_notify
drwx------. 2 postgres postgres 6 6月 3 15:57 pg_replslot
drwx------. 2 postgres postgres 6 6月 3 15:57 pg_serial
drwx------. 2 postgres postgres 6 6月 3 15:57 pg_snapshots
drwx------. 2 postgres postgres 6 6月 3 15:57 pg_stat
drwx------. 2 postgres postgres 6 6月 3 15:57 pg_stat_tmp
drwx------. 2 postgres postgres 17 6月 3 15:57 pg_subtrans
drwx------. 2 postgres postgres 6 6月 3 15:57 pg_tblspc
drwx------. 2 postgres postgres 6 6月 3 15:57 pg_twophase
-rw-------. 1 postgres postgres 4 6月 3 15:57 PG_VERSION
drwx------. 3 postgres postgres 58 6月 3 15:57 pg_xlog
-rw-------. 1 postgres postgres 88 6月 3 15:57 postgresql.auto.conf
-rw-------. 1 postgres postgres 22505 6月 3 15:57 postgresql.conf
# 配置pg_hba.conf文件
[postgres@hadoop pgdata]$ cp pg_hba.conf pg_hba.conf.`date +%F`
[postgres@hadoop pgdata]$ vim pg_hba.conf
# TYPE DATABASE USER ADDRESS METHOD
# "local" is for Unix domain socket connections only
local all all trust
# IPv4 local connections:
host all all 127.0.0.1/32 trust
# IPv6 local connections:
host all all ::1/128 trust
host all all 0.0.0.0/0 md5
# Allow replication connections from localhost, by a user with the
# replication privilege.
#local replication postgres trust
local replication all trust
#host replication postgres 127.0.0.1/32 trust
host replication all 127.0.0.1/32 trust
#host replication postgres ::1/128 trust
# 配置postgresql.conf文件
[postgres@hadoop pgdata]$ cp postgresql.conf postgresql.conf.`date +%F`
[postgres@hadoop pgdata]$ vim postgresql.conf
listen_addresses = '*'
# 配置日志目录
[postgres@hadoop pgdata]$ mkdir ~/log/pglog
启动pg
[postgres@hadoop pgdata]$ pg_ctl start -l /home/postgres/log/pglog/pg_server.log
# 检验是否启动成功
[postgres@hadoop ~]$ cd
[postgres@hadoop ~]$ lsof -i:5432
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
postgres 14122 postgres 3u IPv4 35167 0t0 TCP *:postgres (LISTEN)
postgres 14122 postgres 4u IPv6 35168 0t0 TCP *:postgres (LISTEN)
# 设置密码
[postgres@hadoop ~]$ psql
psql.bin (9.6.18)
Type "help" for help.
postgres=# \password
Enter new password:
Enter it again:
# 设置密码后需要重新登录
重启：
[postgres@hadoop pgdata]$ pg_ctl restart -l /home/postgres/log/pglog/pg_server.log