概述： 很多时候我们通过系统本身yum、apt等方式，安装的redis的时候，安装的版本都不是较新的版本或我们所需要的版本，这时我们需要用源码安装，这样就就可以随意的选择我们自己指定的版本了，下面我们来简单介绍通过源码包的方式，安装redis6.0版本。
版本环境：redis 6.2.1
1、准备安装目录：
#mkdir -p /usr/local/redis6csdb/6379/{conf,data,log}
2、下载安装包编译安装（需提前安装好编译工具如gcc、make）
#wget https://download.redis.io/releases/redis-6.2.1.tar.gz && tar -zxvf redis-6.2.1.tar.gz
#cd redis-6.2.1 && make && make install
3、配置文件编辑 #vim /usr/local/redis6csdb/6379/conf/redis.conf bind 0.0.0.0 protected-mode no port 6379 tcp-backlog 1024 timeout 0 tcp-keepalive 300 daemonize yes pidfile /var/run/redis_6379.pid loglevel notice logfile "/usr/local/redis6csdb/6379/log/redis.log" databases 16 always-show-logo no set-proc-title yes proc-title-template "{title} {listen-addr} {server-mode}" stop-writes-on-bgsave-error yes rdbcompression yes rdbchecksum yes dbfilename dump.rdb rdb-del-sync-files no dir "/usr/local/redis6csdb/6379/data" maxmemory 1516192760 replica-serve-stale-data yes replica-read-only yes repl-diskless-sync no repl-diskless-sync-delay 5 repl-diskless-load disabled repl-disable-tcp-nodelay no replica-priority 100 acllog-max-len 128 lazyfree-lazy-eviction no lazyfree-lazy-expire no lazyfree-lazy-server-del no replica-lazy-flush no lazyfree-lazy-user-del no lazyfree-lazy-user-flush no oom-score-adj no oom-score-adj-values 0 200 800 disable-thp yes appendonly no 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 lua-time-limit 5000 #cluster-enabled yes #cluster-config-file nodes-6379.conf #cluster-node-timeout 15000 #cluster-require-full-coverage no 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 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 4、增加redis6在系统中自启动 #vim /usr/lib/systemd/system/redis.service [Unit] Description=redis-server6379 After=network.target [Service] Type=forking ExecStart=/usr/local/bin/redis-server /usr/local/redis6csdb/6379/conf/redis.conf ExecStop=/usr/local/bin/redis-cli -h 127.0.0.1 -p 6379 shutdown PrivateTmp=true #systemctl restart redis && systemctl enable redis 5、系统参数调整 ####sysctl.conf #echo "vm.overcommit_memory = 1" >> /etc/sysctl.conf #echo "net.core.somaxconn = 2048" >> /etc/sysctl.conf #sysctl vm.overcommit_memory=1 #sysctl net.core.somaxconn=2048 #sysctl -p 6、关于自带的保护模式： 1、设置protected-mode no模式，此时外部网络可以直接访问 2、设置protected-mode yes保护模式，需配置bind ip或者设置访问密码
