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Redis 是一个开源的内存数据结构存储系统,可用作数据库、缓存和消息代理。它以高性能、灵活的数据结构和丰富的功能集而闻名。本文将详细介绍在 Ubuntu 和 Debian 系统中安装、配置和优化 Redis 的完整流程。
# 更新包列表sudo apt update
# 升级已安装的包sudo apt upgrade -y
# 安装必要的依赖sudo apt install curl wget software-properties-common gnupg2 -y
# 检查是否已安装 Redis
redis-cli --version
redis-server --version
# 检查服务状态sudo systemctl status redissudo systemctl status redis-server
# 如果已有旧版本,先备份数据然后卸载sudo systemctl stop redissudo systemctl stop redis-serversudo apt purge redis-server redis-tools -ysudo apt autoremove -ysudo rm -rf /etc/redissudo rm -rf /var/lib/redissudo rm -rf /var/log/redis
# 添加 Redis 官方仓库
curl -fsSL /gpg | sudo gpg --dearmor -o /usr/share/keyrings/redis-archive-keyring.gpg
# 验证密钥指纹echo "fingers" | sudo gpg --no-default-keyring --keyring /usr/share/keyrings/redis-archive-keyring.gpg --list-keys
# 添加仓库到源列表echo "deb [signed-by=/usr/share/keyrings/redis-archive-keyring.gpg] /deb $(lsb_release -cs) main" | sudo tee /etc/apt/sources.list.d/redis.list
# 更新包列表sudo apt update
# 安装 Redissudo apt install redis redis-server redis-tools -y
# Ubuntu/Debian 系统仓库包含较新的 Redissudo apt updatesudo apt install redis-server redis-tools -y
# 安装管理工具sudo apt install redis-sentinel redis-cli -y
# 安装编译依赖sudo apt install build-essential tcl tcl-tls tcllib -y
# 下载源码cd /tmp
wget /redis-stable.tar.gz
tar -xzf redis-stable.tar.gzcd redis-stable
# 编译和安装
make -j$(nproc)sudo make install
# 运行测试
make test
# 创建系统用户sudo adduser --system --group --no-create-home redissudo mkdir -p /var/lib/redissudo chown redis:redis /var/lib/redissudo chmod 770 /var/lib/redis
# 启动 Redis 服务sudo systemctl start redis-serversudo systemctl enable redis-server
# 检查服务状态sudo systemctl status redis-serversudo systemctl is-active redis-server
# 验证安装
redis-cli --version
redis-server --version
# 测试连接
redis-cli ping# 应该返回 PONG
# 基本测试
redis-cli set test "hello"
redis-cli get test
redis-cli del test
# 查看服务器信息
redis-cli info
redis-cli info server
redis-cli info stats
redis-cli info memory
redis-cli info replication
# 查看配置
redis-cli config get *
redis-cli config get maxmemory
redis-cli config get port
# 查看客户端连接
redis-cli client list
redis-cli info clients
# 主配置文件
/etc/redis/redis.conf
/etc/redis/redis-server.conf
# 哨兵配置文件
/etc/redis/sentinel.conf
# 数据目录
/var/lib/redis/
/var/lib/redis/dump.rdb
/var/lib/redis/appendonly.aof
# 日志目录
/var/log/redis/
/var/log/redis/redis-server.log
# 运行目录
/var/run/redis/
/var/run/redis/redis-server.pid
# 备份原始配置sudo cp /etc/redis/redis.conf /etc/redis/redis.conf.backup
# 编辑配置文件sudo nano /etc/redis/redis.conf
配置示例:
# 基本设置
daemonize yes
pidfile /var/run/redis/redis-server.pid
port 6379
bind 127.0.0.1 ::1
timeout 300
tcp-keepalive 60
tcp-backlog 511
unixsocket /var/run/redis/redis.sock
unixsocketperm 770
# 常规设置
loglevel notice
logfile /var/log/redis/redis-server.log
databases 16
always-show-logo noset-proc-title yes
proc-title-template "{title} {listen-addr} {server-mode}"
# 快照设置
save 900 1
save 300 10
save 60 10000
stop-writes-on-bgsave-error yes
rdbcompression yes
rdbchecksum yes
dbfilename dump.rdb
rdb-del-sync-files nodir /var/lib/redis
# 复制设置
replica-serve-stale-data yes
replica-read-only yes
repl-diskless-sync yes
repl-diskless-sync-delay 5
repl-diskless-load disabled
repl-disable-tcp-nodelay no
replica-priority 100
acllog-max-len 128
# 安全设置
requirepass "YourStrongPassword123!"
masterauth "ReplicationPassword123!"
rename-command FLUSHDB ""
rename-command FLUSHALL ""
rename-command CONFIG ""
# 客户端设置
maxclients 10000
maxmemory 2gb
maxmemory-policy allkeys-lru
maxmemory-samples 5
lazyfree-lazy-eviction no
lazyfree-lazy-expire no
lazyfree-lazy-server-del no
replica-lazy-flush no
lazyfree-lazy-user-del no
oom-score-adj no
oom-score-adj-values 0 200 800
# 持久化设置
appendonly yes
appendfilename "appendonly.aof"
appendfsync everysec
no-appendfsync-on-rewrite no
auto-aof-rewrite-percentage 100
auto-aof-rewrite-min-size 64mb
aof-load-truncated yes
aof-use-rdb-preamble yes
# 慢日志设置
slowlog-log-slower-than 10000
slowlog-max-len 128
latency-monitor-threshold 0
# 事件通知
notify-keyspace-events ""
# 高级配置hash-max-ziplist-entries 512hash-max-ziplist-value 64list-max-ziplist-size -2list-compress-depth 0set-max-intset-entries 512
zset-max-ziplist-entries 128
zset-max-ziplist-value 64
hll-sparse-max-bytes 3000
stream-node-max-bytes 4096
stream-node-max-entries 100
activerehashing yes
client-output-buffer-limit normal 0 0 0
client-output-buffer-limit replica 256mb 64mb 60
client-output-buffer-limit pubsub 32mb 8mb 60
hz 10
dynamic-hz yes
aof-rewrite-incremental-fsync yes
rdb-save-incremental-fsync yes
jemalloc-bg-thread yes
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