Linux系统安装和卸载Redis
需要的工具：XShell、Xftp
1 安装Redis
1、下载 Redis 安装包
2、在连接 Xshell 后，使用 Xftp 工具将下载在本机上的安装包拖移到服务器（Linux系统）中；
3、解压压缩包 tar -zxf redis-5.0.14.tar.gz
4、切换到解压后的目录 cd redis-5.0.14
5、编译 sudo make
Linux中
sudo命令以系统管理者的身份执行指令
6、切换到 src 目录 cd src
7、执行安装 sudo make install
到这里安装Redis工作就结束了。但是安装过程中，没有设置安装位置，所以安装的位置为默认的位置。
2 移动和配置
可以将可执行文件和配置文件移动到指定的目录：
1、切换到对应的目录（我的路径为/home/xl，可以根据自己的路径设置） cd /home/xl
2、创建对应的目录文件夹 mkdir -p /home/xl/redis/bin
3、切换到对应的目录 cd /home/xl/redis-5.0.14
4、移动redis.conf文件到对应的目录 mv ./redis.conf /home/xl/redis/bin
5、切换到src目录 cd src
6、移动 mkreleasehdr.sh，redis-benchmark，redis-check-aof，redis-check-dump，redis-cli，redis-server，redis-sentinel 到指定目录 mv mkreleasehdr.sh redis-benchmark redis-check-aof redis-check-dump redis-cli redis-server redis-sentinel /home/xl/redis/bin
比较重要的3个可执行文件：
redis-server：Redis服务器程序
redis-cli：Redis客户端程序，它是一个命令行操作工具。也可以使用telnet根据其纯文本协议操作。
redis-benchmark：Redis性能测试工具，测试Redis在你的系统及配置下的读写性能。
可能会找不到redis-check-dump，可以先忽略，服务启动后会自动生成。
7、配置文件中 daemonize 是设置Redis服务是否需要一直在后台运行，若需要则把该项的值改为yes，不需要则no。
sudo vi /home/xl/redis/bin/redis.conf （vi 前加sudo 可以解决:wq保存时提示只读Readonly的问题），将daemonize no改为daemonize yes，:wq保存退出。
3 启动Redis服务
启动redis并指定配置文件：
/home/xl/redis/bin/redis-server或 cd /home/xl/redis/bin ./redis-server ./redis.conf
查看redis是否启动成功：
ps aux | grep redis
查看主机的6379端口是否在使用（监听）：
netstat -tlun
关闭redis服务器：
pkill redis-server
4 卸载Redis
1、首先查看redis-server是否正在运行/启动：
ps aux | grep redis
2、关闭进程：
kill -9 进程号
3、删除redis相应的文件夹
sudo rm -rf /home/xl/redis
5 报错问题
报错信息
In file included from server.c:31:0:
server.c:4999:59: error: ‘struct redisServer’ has no member named ‘cluster’
(server.cluster_enabled && nodeIsMaster(server.cluster->myself)));
^
cluster.h:58:27: note: in definition of macro ‘nodeIsMaster’
#define nodeIsMaster(n) ((n)->flags & CLUSTER_NODE_MASTER)
^
server.c: In function ‘main’:
server.c:5047:11: error: ‘struct redisServer’ has no member named ‘sentinel_mode’
server.sentinel_mode = checkForSentinelMode(argc,argv);
^
server.c:5064:15: error: ‘struct redisServer’ has no member named ‘sentinel_mode’
if (server.sentinel_mode) {
^
server.c:5131:19: error: ‘struct redisServer’ has no member named ‘sentinel_mode’
if (server.sentinel_mode && configfile && *configfile == '-') {
^
server.c:5153:168: error: ‘struct redisServer’ has no member named ‘sentinel_mode’
serverLog(LL_WARNING, "Warning: no config file specified, using the default config. In order to specify a config file use %s /path/to/%s.conf", argv[0], server.sentinel_mode ? "sentinel" : "redis");
^
server.c:5158:11: error: ‘struct redisServer’ has no member named ‘supervised’
server.supervised = redisIsSupervised(server.supervised_mode);
^
server.c:5158:49: error: ‘struct redisServer’ has no member named ‘supervised_mode’
server.supervised = redisIsSupervised(server.supervised_mode);
^
server.c:5159:28: error: ‘struct redisServer’ has no member named ‘daemonize’
int background = server.daemonize && !server.supervised;
^
server.c:5159:49: error: ‘struct redisServer’ has no member named ‘supervised’
int background = server.daemonize && !server.supervised;
^
server.c:5163:29: error: ‘struct redisServer’ has no member named ‘pidfile’
if (background || server.pidfile) createPidFile();
^
server.c:5168:16: error: ‘struct redisServer’ has no member named ‘sentinel_mode’
if (!server.sentinel_mode) {
^
server.c:5178:19: error: ‘struct redisServer’ has no member named ‘cluster_enabled’
if (server.cluster_enabled) {
^
server.c:5186:19: error: ‘struct redisServer’ has no member named ‘ipfd_count’
if (server.ipfd_count > 0 || server.tlsfd_count > 0)
^
server.c:5186:44: error: ‘struct redisServer’ has no member named ‘tlsfd_count’
if (server.ipfd_count > 0 || server.tlsfd_count > 0)
^
server.c:5188:19: error: ‘struct redisServer’ has no member named ‘sofd’
if (server.sofd > 0)
^
server.c:5189:94: error: ‘struct redisServer’ has no member named ‘unixsocket’
serverLog(LL_NOTICE,"The server is now ready to accept connections at %s", server.unixsocket);
^
server.c:5190:19: error: ‘struct redisServer’ has no member named ‘supervised_mode’
if (server.supervised_mode == SUPERVISED_SYSTEMD) {
^
server.c:5191:24: error: ‘struct redisServer’ has no member named ‘masterhost’
if (!server.masterhost) {
^
server.c:5201:19: error: ‘struct redisServer’ has no member named ‘supervised_mode’
if (server.supervised_mode == SUPERVISED_SYSTEMD) {
^
server.c:5208:15: error: ‘struct redisServer’ has no member named ‘maxmemory’
if (server.maxmemory > 0 && server.maxmemory < 1024*1024) {
^
server.c:5208:39: error: ‘struct redisServer’ has no member named ‘maxmemory’
if (server.maxmemory > 0 && server.maxmemory < 1024*1024) {
^
server.c:5209:176: error: ‘struct redisServer’ has no member named ‘maxmemory’
serverLog(LL_WARNING,"WARNING: You specified a maxmemory value that is less than 1MB (current value is %llu bytes). Are you sure this is what you really want?", server.maxmemory);
^
server.c:5212:31: error: ‘struct redisServer’ has no member named ‘server_cpulist’
redisSetCpuAffinity(server.server_cpulist);
^
server.c: In function ‘hasActiveChildProcess’:
server.c:1480:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^
server.c: In function ‘allPersistenceDisabled’:
server.c:1486:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^
server.c: In function ‘writeCommandsDeniedByDiskError’:
server.c:3826:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^
server.c: In function ‘iAmMaster’:
server.c:5000:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^
make[1]: *** [server.o] Error 1
make[1]: Leaving directory `/opt/redis-6.0.6/src'
make: *** [all] Error 2原因
自 redis 6.0.0 之后，编译 redis 需要支持 C11 特性，C11 特性在 4.9 中被引入。
Centos7 默认 gcc 版本为 4.8.5，所以需要升级gcc版本。
解决
yum -y install gcc gcc-c++ make tcl
yum -y install centos-release-scl
yum -y install devtoolset-9-gcc devtoolset-9-gcc-c++ devtoolset-9-binutils scl enable devtoolset-9 bash 1234升级之后问题解决。
