워드프레스 Redis Cache 설치 및 설정
Redis Cache는 비관계형 데이터베이스 관리 시스템으로, 오픈 소스 기반으로 개발된 Remote Dictionary Server의 약자입니다. 이 시스템은 키-값 구조의 비정형 데이터를 저장하고 관리합니다.
✅ Redis Cache 설치
~]# dnf -y install redis
Last metadata expiration check: 3:09:28 ago on Thu 01 Aug 2024 07:16:40 AM UTC.
Dependencies resolved.
==========================================================================================================
Package Architecture Version Repository Size
==========================================================================================================
Installing:
redis x86_64 6.2.7-1.el9 appstream 1.3 M
Transaction Summary
==========================================================================================================
Install 1 Package
Total download size: 1.3 M
Installed size: 4.7 M
Downloading Packages:
redis-6.2.7-1.el9.x86_64.rpm 28 MB/s | 1.3 MB 00:00
----------------------------------------------------------------------------------------------------------
Total 1.7 MB/s | 1.3 MB 00:00
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
Preparing : 1/1
Running scriptlet: redis-6.2.7-1.el9.x86_64 1/1
Installing : redis-6.2.7-1.el9.x86_64 1/1
Running scriptlet: redis-6.2.7-1.el9.x86_64 1/1
Verifying : redis-6.2.7-1.el9.x86_64 1/1
Installed:
redis-6.2.7-1.el9.x86_64
Complete!
~]# rpm -qa | grep redis
redis-6.2.7-1.el9.x86_64
~]# dnf -y install redis-devel
Last metadata expiration check: 3:13:27 ago on Thu 01 Aug 2024 07:16:40 AM UTC.
Dependencies resolved.
======================================================================================================================
Package Architecture Version Repository Size
======================================================================================================================
Installing:
redis-devel x86_64 6.2.7-1.el9 appstream 21 k
Transaction Summary
======================================================================================================================
Install 1 Package
Total download size: 21 k
Installed size: 67 k
Downloading Packages:
redis-devel-6.2.7-1.el9.x86_64.rpm 101 kB/s | 21 kB 00:00
----------------------------------------------------------------------------------------------------------------------
Total 26 kB/s | 21 kB 00:00
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
Preparing : 1/1
Installing : redis-devel-6.2.7-1.el9.x86_64 1/1
Running scriptlet: redis-devel-6.2.7-1.el9.x86_64 1/1
Verifying : redis-devel-6.2.7-1.el9.x86_64 1/1
Installed:
redis-devel-6.2.7-1.el9.x86_64
Complete!
~]# systemctl status redis
~]# systemctl start redis
~]# systemctl enable redis
Created symlink /etc/systemd/system/multi-user.target.wants/redis.service → /usr/lib/systemd/system/redis.service.
# 정상 작동 확인 $
~]# redis-cli ping
PONG
~]# dnf -y install php-redis
Last metadata expiration check: 0:40:38 ago on Thu 01 Aug 2024 11:39:12 AM UTC.
Dependencies resolved.
=========================================================================================================
Package Architecture Version Repository Size
=========================================================================================================
Installing:
php-pecl-redis6 x86_64 6.0.2-1.el9.remi.8.3 remi-modular 331 k
Installing dependencies:
liblzf x86_64 3.6-22.el9 epel 27 k
php-pecl-igbinary x86_64 3.2.15-1.el9.remi.8.3 remi-modular 71 k
php-pecl-msgpack x86_64 2.2.0-2.el9.remi.8.3 remi-modular 56 k
Transaction Summary
=========================================================================================================
Install 4 Packages
Total download size: 485 k
Installed size: 2.3 M
Downloading Packages:
(1/4): php-pecl-msgpack-2.2.0-2.el9.remi.8.3.x86_64.rpm 52 kB/s | 56 kB 00:01
(2/4): liblzf-3.6-22.el9.x86_64.rpm 25 kB/s | 27 kB 00:01
(3/4): php-pecl-igbinary-3.2.15-1.el9.remi.8.3.x86_64.rpm 53 kB/s | 71 kB 00:01
(4/4): php-pecl-redis6-6.0.2-1.el9.remi.8.3.x86_64.rpm 426 kB/s | 331 kB 00:00
---------------------------------------------------------------------------------------------------------
Total 169 kB/s | 485 kB 00:02
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
Preparing : 1/1
Installing : php-pecl-msgpack-2.2.0-2.el9.remi.8.3.x86_64 1/4
Installing : php-pecl-igbinary-3.2.15-1.el9.remi.8.3.x86_64 2/4
Installing : liblzf-3.6-22.el9.x86_64 3/4
Installing : php-pecl-redis6-6.0.2-1.el9.remi.8.3.x86_64 4/4
Running scriptlet: php-pecl-redis6-6.0.2-1.el9.remi.8.3.x86_64 4/4
Verifying : liblzf-3.6-22.el9.x86_64 1/4
Verifying : php-pecl-igbinary-3.2.15-1.el9.remi.8.3.x86_64 2/4
Verifying : php-pecl-msgpack-2.2.0-2.el9.remi.8.3.x86_64 3/4
Verifying : php-pecl-redis6-6.0.2-1.el9.remi.8.3.x86_64 4/4
Installed:
liblzf-3.6-22.el9.x86_64 php-pecl-igbinary-3.2.15-1.el9.remi.8.3.x86_64
php-pecl-msgpack-2.2.0-2.el9.remi.8.3.x86_64 php-pecl-redis6-6.0.2-1.el9.remi.8.3.x86_64
Complete!✅ Redis Cache 설정
🔲 redis.conf 설정
1 # 최대 메모리 사용량
2 maxmemory 512mb
3 maxmemory-policy allkeys-lru
4
5 # 내부 접속만 허용 (보안 강화)
6 bind 127.0.0.1 -::1
7 protected-mode yes
8
9 # 비밀번호 설정 (내부만 쓸 경우 비활성)
10 # requirepass MyStrongPassword123!
11
12 # 포트 - 기본 6379 (비활성해도 socket으로 통신 가능)
13 port 6379
14
15 # UNIX socket 설정
16 unixsocket /var/run/redis/redis.sock
17 unixsocketperm 777
18
19 # 지속 저장 비활성 (워드프레스 캐시 전용)
20 save ""
21 appendonly no
22
23 # 백그라운드 리클레임 및 메모리 최적화
24 activerehashing yes
25 lazyfree-lazy-eviction yes
26 lazyfree-lazy-expire yes🔲 wp-config.php 설정
## Redis 설정 ##
# socket 설정 #
define( 'WP_REDIS_PATH', '/var/run/redis/redis.sock' );
define( 'WP_REDIS_SCHEME', 'unix' );
# 3시간으로 설정
define( 'WP_REDIS_METRICS_MAX_TIME',10800);🔲 redis Service 설정
systemctl enable redis
systemctl start redis
✅ Redis Object Cache Plugin 설치 및 확인
아래 화면처럼 플러그인 설치 후 Redis Cache의 정상적인 구동을 확인할 수 있습니다.
