開發與維運

Centos7 源碼編譯安裝 PostgreSQL11.5

下載

地址:https://www.postgresql.org/ftp/source/v11.5/

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# cd /opt/
# wget https://ftp.postgresql.org/pub/source/v11.5/postgresql-11.5.tar.gz

編譯安裝

  1. 解壓安裝包,執行./configure --help可以看到編譯相關的信息。
# tar -zxvf postgresql-11.5.tar.gz
# mkdir -p postgresql-11.5/build_dir
# cd postgresql-11.5
# ll
total 748
-rw-r--r--.  1 1107 1107    522 Aug  5 17:14 aclocal.m4
drwxrwxrwx.  2 1107 1107   4096 Aug  5 17:28 config
-rwxr-xr-x.  1 1107 1107 561752 Aug  5 17:14 configure
-rw-r--r--.  1 1107 1107  84451 Aug  5 17:14 configure.in
drwxrwxrwx. 56 1107 1107   4096 Aug  5 17:28 contrib
-rw-r--r--.  1 1107 1107   1192 Aug  5 17:14 COPYRIGHT
drwxrwxrwx.  3 1107 1107    107 Aug  5 17:28 doc
-rw-r--r--.  1 1107 1107   3848 Aug  5 17:14 GNUmakefile.in
-rw-r--r--.  1 1107 1107    284 Aug  5 17:14 HISTORY
-rw-r--r--.  1 1107 1107  74257 Aug  5 17:29 INSTALL
-rw-r--r--.  1 1107 1107   1665 Aug  5 17:14 Makefile
-rw-r--r--.  1 1107 1107   1212 Aug  5 17:14 README
drwxrwxrwx. 16 1107 1107   4096 Aug  5 17:29 src
# ./configure --help
  1. 編譯
  • 在編譯的過程中會發現缺少包,所以可以提前安裝依賴包
configure: error: readline library not found
If you have readline already installed, see config.log for details on the
failure.  It is possible the compiler isn't looking in the proper directory.
Use --without-readline to disable readline support.

configure: error: zlib library not found
If you have zlib already installed, see config.log for details on the
failure.  It is possible the compiler isn't looking in the proper directory.
Use --without-zlib to disable zlib support.
  • 安裝依賴包
yum install -y gcc gcc-c++  epel-release llvm5.0 llvm5.0-devel clang libicu-devel perl-ExtUtils-Embed readline readline-devel zlib zlib-devel openssl openssl-devel pam-devel libxml2-devel libxslt-devel openldap-devel systemd-devel tcl-devel python-devel
  • configure
# cd build_dir/

vim ../src/Makefile.global.in
修改以下行:
COMPILE.c.bc = $(CLANG) -Wno-ignored-attributes $(BITCODE_CFLAGS) $(CPPFLAGS) -flto=thin -emit-llvm -c
修改為:
COMPILE.c.bc = $(CLANG) -Wno-ignored-attributes $(BITCODE_CFLAGS) $(CPPFLAGS) -emit-llvm -c

-- --prefix 指定默認安裝路徑
[root@localhost build_dir]# ../configure --prefix=/usr/local/pgsql --enable-nls --with-perl --with-python --with-tcl --with-gssapi --with-llvm LLVM_CONFIG='/usr/lib64/llvm5.0/bin/llvm-config' --with-icu --with-openssl --with-pam --with-ldap --with-systemd --with-libxml --with-libxslt
  • configure 命令完成後,會發現創建了 config.status 配置文件,如下圖:

image

  • make
[root@localhost build_dir]# make
  • 出現如下圖就證明編譯成功,可以進行安裝了

image

  • make install
[root@localhost build_dir]# make install
  • 出現如下圖就證明安裝成功了。

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創建用戶

編譯安裝成功後,接下來要做的就是創建一個普通用戶,因為默認超級用戶(root)不能啟動postgresql,所以需要創建一個普通用戶來啟動數據庫,執行以下命令創建用戶:

[root@localhost build_dir]# groupadd postgres
[root@localhost build_dir]# useradd -g postgres postgres
[root@localhost build_dir]# passwd postgres

接下來設置權限,將pg的數據目錄全部賦給postgres用戶,執行以下命令:

[root@localhost build_dir]# chown -R postgres:postgres /usr/local/pgsql

創建目錄

[root@localhost build_dir]# mkdir -p /mnt/db1/pgdata/pgsql /mnt/db1/pgdata/pgtbs /mnt/db1/archivelog /backups
[root@localhost build_dir]# chmod -R 775 /mnt/db1
[root@localhost build_dir]# chown -R postgres:postgres /mnt/db1

設置環境變量

[root@localhost build_dir]# vi /home/postgres/.bash_profile

PATH=$PATH:$HOME/.local/bin:$HOME/bin

export PATH

export PGPORT=8432
export PGHOME=/usr/local/pgsql
export PGDATA=/mnt/db1/pgdata/pgsql
export PATH=$PGHOME/bin:$PATH
export MANPATH=$PGHOME/share/man:$MANPATH
export LANG=en_US.UTF-8
export DATE='date +"%Y%m%d%H%M"'
export LD_LIBRARY_PATH=$PGHOME/lib:$LD_LIBRARY_PATH
export PGHOST=$PGDATA
export PGUSER=postgres
export PGDATABASE=postgres

PATH=$PATH:$HOME/.local/bin:$HOME/bin:$PGHOME/bin
export PATH

執行如下命令使其生效:

[root@localhost build_dir]# source /home/postgres/.bash_profile

初始化數據庫

切換用戶
[root@localhost build_dir]# su - postgres
初始化數據庫
[postgres@localhost ~]$ initdb -D $PGDATA -U postgres --locale=en_US.UTF8 -E UTF8
  • 修改監聽地址 將listen_addresses的值設置成*,使其監聽整個網絡,端口號默認是5432,也可以自己設置。
[postgres@localhost ~]$ vim /mnt/db1/pgdata/pgsql/postgresql.conf
修改內容:
listen_addresses = '*'
unix_socket_directories = '.'
port = 8432
  • 修改客戶端認證方式
[postgres@localhost ~]$ vim /mnt/db1/pgdata/pgsql/pg_hba.conf
添加內容:
host all all 0.0.0.0/0 md5 # 其他用戶登陸

設置防火牆規則

#切換回root用戶
[postgres@localhost ~]$ exit
[root@localhost build_dir]# firewall-cmd --zone=public --add-port=8432/tcp --permanent
[root@localhost build_dir]# firewall-cmd --reload

啟動數據庫

[root@localhost build_dir]# su - postgres
啟動
[postgres@localhost ~]$ pg_ctl -D /mnt/db1/pgdata/pgsql -l /mnt/db1/archivelog/pgsql.log start
停止
[root@localhost postgres]# pg_ctl -D /mnt/db1/pgdata/pgsql/ -s -m fast stop

連接測試

[postgres@localhost ~]$ psql
查詢所有用戶
postgres=# select * from pg_user;
postgres=# select * from pg_roles;
查詢權限
postgres=# select * from information_schema.table_privileges where grantee='cc';
查看有哪些數據庫
postgres=# \l
相當與mysql的show databases;
postgres=# select datname from pg_database;
相當於mysql的show tables, public 是默認的schema的名字
postgres=# SELECT table_name FROM information_schema.tables WHERE table_schema = 'public';
相當與mysql的describe table_name, 'table_name'是要查詢的表的名字
postgres=# SELECT column_name FROM information_schema.columns WHERE table_name ='table_name';
退出
postgres=# \q

psql 是 PostgreSQL 的客戶端程序,要連接 PostgreSQL 數據庫,我們需要指定以下內容:

  • -d or --dbname 數據庫名
  • -h or --host 主機名
  • -p or --port 端口號,默認5432 端口
  • -U or --username 用戶名
    [postgres@localhost ~]$ psql -h localhost -p 8432 -U postgres

設置postgres用戶密碼

[postgres@localhost ~]$ psql
postgres=# ALTER USER postgres WITH encrypted PASSWORD 'new password';
postgres=# \q
[postgres@localhost ~]$ psql -h localhost -p 8432 -U postgres

設置開機自啟動

  • 設置啟動配置
vim /usr/lib/systemd/system/postgresql-11.service
添加內容:
[Unit]
Description=PostgreSQL 11 database server
Documentation=https://www.postgresql.org/docs/11/static/
After=syslog.target
After=network.target

[Service]
Type=notify

User=postgres
Group=postgres

# Location of database directory
Environment=PGDATA=/mnt/db1/pgdata/pgsql/

# Where to send early-startup messages from the server (before the logging
# options of postgresql.conf take effect)
# This is normally controlled by the global default set by systemd
# StandardOutput=syslog

# Disable OOM kill on the postmaster
OOMScoreAdjust=-1000

Environment=PG_OOM_ADJUST_FILE=/proc/self/oom_score_adj
Environment=PG_OOM_ADJUST_VALUE=0

# ExecStartPre=/usr/pgsql-11/bin/postgresql-11-check-db-dir ${PGDATA}
ExecStart=/usr/local/pgsql/bin/postmaster -D ${PGDATA}
ExecReload=/bin/kill -HUP $MAINPID
# ExecStart=/usr/local/pgsql9.4/bin/pg_ctl start -D ${PGDATA} -s -o "-p ${PGPORT}" -w -t 300
# ExecStop=/usr/local/pgsql9.4/bin/pg_ctl stop -D ${PGDATA} -s -m fast
# ExecReload=/usr/local/pgsql9.4/bin/pg_ctl reload -D ${PGDATA} -s
KillMode=mixed
KillSignal=SIGINT

# Do not set any timeout value, so that systemd will not kill postmaster
# during crash recovery.
TimeoutSec=0

[Install]
WantedBy=multi-user.target
  • 添加可執行權限
[root@localhost postgres]# chmod 754 /usr/lib/systemd/system/postgresql-11.service
  • 設置開機自啟動
自動啟動
[root@localhost postgres]# systemctl enable postgresql-11.service
啟動
[root@localhost postgres]# systemctl start postgresql-11.service
停止某服務
[root@localhost postgres]# systemctl stop postgresql-11.service
不自動啟動
[root@localhost postgres]# systemctl disable postgresql-11.service
檢查服務狀態(服務詳細信息)
systemctl status postgresql-11.service
檢查服務狀態(僅顯示是否Active)
systemctl is-active postgresql-11.service
顯示所有已啟動的服務
systemctl list-units --type=service

yum 安裝

選擇源:https://www.postgresql.org/download/linux/redhat/

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