How to install redis5.0.10 on centos7.8

Preparation

• One centos7.8 server

Modify the host name

# hostnamectl set-hostname redishost

Install redis

Download redis installation package

# cd /opt
# wget https://download.redis.io/releases/redis-5.0.10.tar.gz

Unzip the compressed package

# cd /opt
# tar -zxf redis-5.0.10.tar.gz

Compile and install

# cd /opt
# cd redis-5.0.10
## 安装gcc编译器
# yum install gcc
# make MALLOC=libc
# # make install
cd src && make install
make[1]: Entering directory `/opt/redis-5.0.10/src'


Hint: It's a good idea to run 'make test' ;)


    INSTALL install
    INSTALL install
    INSTALL install
    INSTALL install
    INSTALL install
make[1]: Leaving directory `/opt/redis-5.0.10/src

Modify system parameters

## 修改sysctl.conf
# (
cat <<EOF
net.core.somaxconn=1024
vm.overcommit_memory=1
EOF
) >> /etc/sysctl.conf

The above operations It is a durable solution to solve the first two warnings prompted by the default startup of redis-server. The two warning messages of the default startup of redis-server are as follows:

• The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.

• ##overcommit_memory is set to 0! Background save may fail under low memory condition. To fix this issue add 'vm.overcommit_memory = 1' to/etc/sysctl.conf and then reboot or run the command 'sysctl vm.overcommit_memory=1' for this to take effect.

Modify the system startup parameters to turn off TCP

## 修改/etc/default/grub
## 在指定行加 transparent_hugepage=never
# vi /etc/default/grub
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="crashkernel=auto rd.lvm.lv=centos/root rd.lvm.lv=centos/swap rhgb quiet transparent_hugepage=never"
GRUB_DISABLE_RECOVERY="true"


## 重新生成grub配置文件
# grub2-mkconfig -o /boot/grub2/grub.cfg
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-3.10.0-1127.el7.x86_64
Found initrd image: /boot/initramfs-3.10.0-1127.el7.x86_64.img
Found linux image: /boot/vmlinuz-0-rescue-385c7efe9475460c95c436866e593af3
Found initrd image: /boot/initramfs-0-rescue-385c7efe9475460c95c436866e593af3.img
done

The above operation is a long-lasting solution to solve the third warning of the default startup prompt of redis-server. Attached is the default startup of redis-server. The third warning message is as follows:

• you have Transparent Huge Pages (THP) support enabled in your kernel. This will create latency and memory usage issues with Redis. To fix thisissue run the command 'echo never > /sys/kernel/mm/transparent_hugepage/enabled' as root, and add it to your /etc/rc.local in order to retain thesetting after a reboot. Redis must be restarted after THP is disabled.

Write 'echo never > /sys/kernel/mm/transparent_hugepage/enabled' according to the prompts to /etc/rc.local. It is actually useless. Change Modifying the grub startup file can take effect.

Start redis as a background process

Modify the configuration file redis.conf

# cd /opt/redis-5.0.10
# mkdir /etc/redis
# cp redis.conf /etc/redis/redis.conf

Modify the following 3 items in /etc/redis/redis.conf

• Start as a background process

Modify daemonize no to daemonize yes

• Set up redis remote connection

Comment out bind 127.0.0.1

• Set redis connection password

##Change requirepass foobard to requirepass redis1234

Set systemctl startup program

/usr/lib/systemd/system/redis.service

[Unit]
Description=Redis 6379
After=syslog.target network.target
[Service]
Type=forking
PrivateTmp=yes
Restart=always
ExecStart=/usr/local/bin/redis-server /etc/redis/redis.conf
User=root
Group=root
LimitCORE=infinity
LimitNOFILE=100000
LimitNPROC=100000
[Install]
WantedBy=multi-user.target

Configure automatic startup

systemctl daemon-reload  
systemctl enable redis

Startup command

systemctl enable redis 
systemctl start redis
systemctl restart redis

{{o.name }}

{{m.name}}

The above is the detailed content of How to install redis5.0.10 on centos7.8. For more information, please follow other related articles on the PHP Chinese website!