os: centos 7.4.1708
postgrsql: 10
os 调整
# vi /etc/rc.local
#禁用透明大页
if test -f /sys/kernel/mm/transparent_hugepage/enabled; then
echo never > /sys/kernel/mm/transparent_hugepage/enabled
fi
if test -f /sys/kernel/mm/transparent_hugepage/defrag; then
echo never > /sys/kernel/mm/transparent_hugepage/defrag
fi
#修改 io scheduler为deadline
echo deadline > /sys/block/sda/queue/scheduler
保存后添加执行权限 chmod u+x /etc/rc.d/rc.local
os 关闭selinux
vi /etc/selinux/config
SELINUX=DISABLED
或者
vi /etc/sysconfig/selinux
SELINUX=DISABLED
os 资源限制
vi /etc/security/limits.conf
root soft nofile 655360 # The maximum number of open file descriptors
root hard nofile 655360
postgres soft nofile 655360
postgres hard nofile 655360
root soft nproc 655360 # The maximum number of processes available to a single user
root hard nproc 655360
postgres soft nproc 655360
postgres hard nproc 655360
* soft memlock unlimited # The maximum size that may be locked into memory
* hard memlock unlimited
* soft core unlimited # The maximum size of core files created
* hard core unlimited
* soft stack unlimited
* hard stack unlimited
os 修改内核参数
vi /etc/sysctl.conf
#kernel.shmmax =
#kernel.shmall =
kernel.shmmni = 4096
#kernel.sem = 250 32000 100 128 #这个设置在很多场合都报错了,有公式计算
kernel.sem = 50100 64128000 50100 1280
fs.aio-max-nr = 1048576
fs.file-max = 7672460
net.ipv4.ip_local_port_range = 9000 65000
# 禁用整个系统所有接口的IPv6
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv4.tcp_keepalive_time = 60
net.ipv4.tcp_keepalive_probes = 9
net.ipv4.tcp_keepalive_intvl =20
net.ipv4.tcp_retries2 = 5
net.core.rmem_default = 1048576
net.core.rmem_max = 4194304
net.core.wmem_default = 262144
net.core.wmem_max = 1048576
vm.overcommit_memory = 2
vm.overcommit_ratio = 90
vm.swappiness = 1
使用 sysctl -p 立即生效
os yum安装依赖包
# uname -a
Linux tpg-1 3.10.0-693.11.1.el7.x86_64 #1 SMP Mon Dec 4 23:52:40 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
# cat /etc/redhat-release
CentOS Linux release 7.4.1708 (Core)
# yum install git tree sysstat wget make cmake gcc gcc-c++ lrzsz flex bison unixODBC
# yum install smartmontools coreutils glib2 perl perl-devel perl-ExtUtils-Embed zlib zlib-devel openldap openldap-devel flex readline readline-devel systemtap systemtap-sdt-devel python python-devel tcl tcl-devel sgml-common docbook* stylesheets openjade sgml-tools libxslt libxslt-devel libxml2 libxml2-devel openssl openssl-devel pam pam-devel libicu libicu-devel uuid uuid-devel
os 安装 postgresql 10 的yum source
参考：
https://www.postgresql.org/download/linux/redhat/
[root@tpg-1 ~]# yum install https://download.postgresql.org/pub/repos/yum/10/redhat/rhel-7-x86_64/pgdg-centos10-10-1.noarch.rpm
安装 postgresql 10
[root@tpg-1 ~]# yum install postgresql10*
==============================================================================================================================================
Package Arch Version Repository Size
==============================================================================================================================================
Installing:
postgresql10 x86_64 10.1-1PGDG.rhel7 pgdg10-updates-testing 1.5 M
postgresql10-contrib x86_64 10.1-1PGDG.rhel7 pgdg10-updates-testing 587 k
postgresql10-debuginfo x86_64 10.1-1PGDG.rhel7 pgdg10-updates-testing 18 M
postgresql10-devel x86_64 10.1-1PGDG.rhel7 pgdg10-updates-testing 2.0 M
postgresql10-docs x86_64 10.1-1PGDG.rhel7 pgdg10-updates-testing 14 M
postgresql10-libs x86_64 10.1-1PGDG.rhel7 pgdg10-updates-testing 347 k
postgresql10-odbc x86_64 10.00.0000-1PGDG.rhel7 pgdg10-updates-testing 280 k
postgresql10-plperl x86_64 10.1-1PGDG.rhel7 pgdg10-updates-testing 55 k
postgresql10-plpython x86_64 10.1-1PGDG.rhel7 pgdg10-updates-testing 72 k
postgresql10-pltcl x86_64 10.1-1PGDG.rhel7 pgdg10-updates-testing 33 k
postgresql10-server x86_64 10.1-1PGDG.rhel7 pgdg10-updates-testing 4.3 M
postgresql10-tcl x86_64 2.3.1-1.rhel7 pgdg10-updates-testing 336 k
postgresql10-tcl-debuginfo x86_64 2.3.1-1.rhel7 pgdg10-updates-testing 7.6 k
postgresql10-test x86_64 10.1-1PGDG.rhel7 pgdg10-updates-testing 1.6 M
Installing for dependencies:
libicu x86_64 50.1.2-15.el7 base 6.9 M
libicu-devel x86_64 50.1.2-15.el7 base 702 k
libtool-ltdl x86_64 2.4.2-22.el7_3 base 49 k
libxslt x86_64 1.1.28-5.el7 base 242 k
tcl x86_64 1:8.5.13-8.el7 base 1.9 M
unixODBC x86_64 2.3.1-11.el7 base 413 k
Transaction Summary
==============================================================================================================================================
Install 14 Packages (+6 Dependent packages)
Installed:
postgresql10.x86_64 0:10.1-1PGDG.rhel7 postgresql10-contrib.x86_64 0:10.1-1PGDG.rhel7
postgresql10-debuginfo.x86_64 0:10.1-1PGDG.rhel7 postgresql10-devel.x86_64 0:10.1-1PGDG.rhel7
postgresql10-docs.x86_64 0:10.1-1PGDG.rhel7 postgresql10-libs.x86_64 0:10.1-1PGDG.rhel7
postgresql10-odbc.x86_64 0:10.00.0000-1PGDG.rhel7 postgresql10-plperl.x86_64 0:10.1-1PGDG.rhel7
postgresql10-plpython.x86_64 0:10.1-1PGDG.rhel7 postgresql10-pltcl.x86_64 0:10.1-1PGDG.rhel7
postgresql10-server.x86_64 0:10.1-1PGDG.rhel7 postgresql10-tcl.x86_64 0:2.3.1-1.rhel7
postgresql10-tcl-debuginfo.x86_64 0:2.3.1-1.rhel7 postgresql10-test.x86_64 0:10.1-1PGDG.rhel7
Dependency Installed:
libicu.x86_64 0:50.1.2-15.el7 libicu-devel.x86_64 0:50.1.2-15.el7 libtool-ltdl.x86_64 0:2.4.2-22.el7_3 libxslt.x86_64 0:1.1.28-5.el7
tcl.x86_64 1:8.5.13-8.el7 unixODBC.x86_64 0:2.3.1-11.el7
Complete!
postgresql-10.service
[root@tpg-1 ~]# find / -name "postgresql-10.service"
/usr/lib/systemd/system/postgresql-10.service
[root@tpg-1 ~]# /usr/pgsql-10/bin/postgresql-10-setup initdb
[root@tpg-1 ~]# systemctl enable postgresql-10
[root@tpg-1 ~]# systemctl start postgresql-10
postgres 的配置文件
postgresql 是在 yum install postgresql10* 自动创建的，信息如下
# cat /etc/passwd |grep -i postgres
postgres:x:26:26:PostgreSQL Server:/var/lib/pgsql:/bin/bash
# cat /etc/group |grep -i postgres
postgres:x:26:
# id postgres
uid=26(postgres) gid=26(postgres) groups=26(postgres)
postgres 用户原始的配置文件
-bash-4.2$ cat ~/.bash_profile
[ -f /etc/profile ] && source /etc/profile
PGDATA=/var/lib/pgsql/10/data
export PGDATA
# If you want to customize your settings,
# Use the file below. This is not overridden
# by the RPMS.
[ -f /var/lib/pgsql/.pgsql_profile ] && source /var/lib/pgsql/.pgsql_profile
postgres 用户修改后的配置文件
-bash-4.2$ cat ~/.bash_profile
[ -f /etc/profile ] && source /etc/profile
export PGHOME=/usr/pgsql-10
export PGDATA=/var/lib/pgsql/10/data
export MANPATH=$PGHOME/share/man:$MANPATH
export LD_LIBRARY_PATH=$PGHOME/lib
export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/lib:/usr/lib:/usr/local/lib
export PATH=$PGHOME/bin:$PATH
export TEMP=/tmp
export TMPDIR=/tmp
export PS1="[e[32;1m][u@h W]$>[e[0m]"
# If you want to customize your settings,
# Use the file below. This is not overridden
# by the RPMS.
[ -f /var/lib/pgsql/.pgsql_profile ] && source /var/lib/pgsql/.pgsql_profile
没有使用建议的 /var/lib/pgsql/.pgsql_profile 这个配置文件
最后根据情况调整 postgresql.conf 的参数值