redis

redis 4.*

部署步骤

下载源码：wget http://download.redis.io/releases/redis-4.0.14.tar.gz

编译安装：

yum -y install gcc 
tar -xaf redis-4.0.14.tar.gz
cd redis-4.0.14
make MALLOC=libc
cp  src/redis-server src/redis-cli src/redis-trib.rb ${redispath} (redispath为目标安装位置)
# cd src;cp redis-server redis-sentinel  redis-benchmark redis-check-rdb redis-check-aof /usr/local/bin/
copy 配置文件redis.conf到安装位置，根据需要修改配置文件

代码100分

集群版：redis.conf（单节点修改cluster-enabled no）

代码100分protected-mode yes
port 6379
tcp-backlog 511
timeout 0
tcp-keepalive 300
daemonize yes
supervised no
pidfile "redis.pid"
loglevel notice
logfile "redis.log"
databases 16
always-show-logo yes   
stop-writes-on-bgsave-error yes
rdbcompression yes
rdbchecksum yes
dbfilename "dump.rdb"
dir "."
slave-serve-stale-data yes
slave-read-only yes
repl-diskless-sync no
repl-diskless-sync-delay 5
repl-disable-tcp-nodelay no
slave-priority 100
lazyfree-lazy-eviction no
lazyfree-lazy-expire no
lazyfree-lazy-server-del no
slave-lazy-flush no
appendonly yes
appendfilename "appendonly.aof"
appendfsync everysec
no-appendfsync-on-rewrite no
auto-aof-rewrite-percentage 100
auto-aof-rewrite-min-size 512mb
aof-load-truncated yes
aof-use-rdb-preamble no
lua-time-limit 5000
slowlog-log-slower-than 10000
slowlog-max-len 128
latency-monitor-threshold 0
notify-keyspace-events ""
hash-max-ziplist-entries 512
hash-max-ziplist-value 64
list-max-ziplist-size -2
list-compress-depth 0
set-max-intset-entries 512
zset-max-ziplist-entries 128
zset-max-ziplist-value 64
hll-sparse-max-bytes 3000
activerehashing yes
client-output-buffer-limit normal 0 0 0
client-output-buffer-limit slave 256mb 64mb 60
client-output-buffer-limit pubsub 32mb 8mb 60
hz 10
aof-rewrite-incremental-fsync yes
cluster-enabled yes
#绑定的ip地址
bind 0.0.0.0
#实例最大内存
maxmemory 6gb

调整内核参数：

关闭THP

echo never > /sys/kernel/mm/transparent_hugepage/enabled
echo "echo never > /sys/kernel/mm/transparent_hugepage/enabled" >>/etc/rc.local

修改sysctl.conf

代码100分vi /etc/sysctl.conf
-------------------------------
vm.overcommit_memory = 1
net.core.somaxconn = 2048

使内核参数生效
```
sysctl -p
```

新建系统服务：新建下面文件，复制下面内容

vi /lib/systemd/system/redis.service
---------------------------------------
[Unit]
Description=redis
After=network.target

[Service]
Type=forking
WorkingDirectory=/home/admin/redis
PIDFile=/home/admin/redis/redis.pid
ExecStart=/home/admin/redis/redis-server  /home/admin/redis/redis.conf
ExecReload=/bin/kill -s HUP $MAINPID
ExecStop=/bin/kill -s QUIT $MAINPID
PrivateTmp=true
LimitNOFILE=64000

[Install]
WantedBy=multi-user.target

systemctl daemon-reload
systemctl enable redis
systemctl restart redis

集群版复制二进制文件到相应节点、添加对系统服务器并启动初始化集群步骤：

安装rvm（ruby管理器）

gpg2 --keyserver hkp://pool.sks-keyservers.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB
curl -sSL https://get.rvm.io | bash -s stable
source /etc/profile.d/rvm.sh
rvm install ruby-2.6.3

yum -y install gem
gem install redis

初始化集群：

./redis-trib.rb create --replicas 1 10.8.140.43:6379 10.8.140.44:6379 10.8.140.45:6379 10.8.140.44:6380 10.8.140.45:6380 10.8.140.43:6380

redis 5.*

安装步骤和4.*一致初始化集群时直接使用redis-cli初始化，不需要使用ruby redis-cli --cluster create 127.0.0.1:7000 127.0.0.1:7001 127.0.0.1:7002 127.0.0.1:7003 127.0.0.1:7004 127.0.0.1:7005 --cluster-replicas 1

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redis 4.*部署[通俗易懂]

redis

redis 4.*

部署步骤

redis 5.*

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