Linux系统安装和卸载Redis

需要的工具：XShell、Xftp

XShell 下载地址：https://www.xshell.com/zh/xshell/

Xftp 下载地址：https://www.xshell.com/zh/xftp/

1 安装Redis

1、下载 Redis 安装包，下载地址：Download | Redis；

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（我的路劲为/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

  1. In file included from server.c:31:0:
  2. server.c:4999:59: error: ‘struct redisServer’ has no member named ‘cluster’
  3.              (server.cluster_enabled && nodeIsMaster(server.cluster->myself)));
  4.                                                            ^
  5. cluster.h:58:27: note: in definition of macro ‘nodeIsMaster’
  6.  #define nodeIsMaster(n) ((n)->flags & CLUSTER_NODE_MASTER)
  7.                            ^
  8. server.c: In function ‘main’:
  9. server.c:5047:11: error: ‘struct redisServer’ has no member named ‘sentinel_mode’
  10.      server.sentinel_mode = checkForSentinelMode(argc,argv);
  11.            ^
  12. server.c:5064:15: error: ‘struct redisServer’ has no member named ‘sentinel_mode’
  13.      if (server.sentinel_mode) {
  14.                ^
  15. server.c:5131:19: error: ‘struct redisServer’ has no member named ‘sentinel_mode’
  16.          if (server.sentinel_mode && configfile && *configfile == '-') {
  17.                    ^
  18. server.c:5153:168: error: ‘struct redisServer’ has no member named ‘sentinel_mode’
  19.          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");
  20.                                                                                                                                                                         ^
  21. server.c:5158:11: error: ‘struct redisServer’ has no member named ‘supervised’
  22.      server.supervised = redisIsSupervised(server.supervised_mode);
  23.            ^
  24. server.c:5158:49: error: ‘struct redisServer’ has no member named ‘supervised_mode’
  25.      server.supervised = redisIsSupervised(server.supervised_mode);
  26.                                                  ^
  27. server.c:5159:28: error: ‘struct redisServer’ has no member named ‘daemonize’
  28.      int background = server.daemonize && !server.supervised;
  29.                             ^
  30. server.c:5159:49: error: ‘struct redisServer’ has no member named ‘supervised’
  31.      int background = server.daemonize && !server.supervised;
  32.                                                  ^
  33. server.c:5163:29: error: ‘struct redisServer’ has no member named ‘pidfile’
  34.      if (background || server.pidfile) createPidFile();
  35.                              ^
  36. server.c:5168:16: error: ‘struct redisServer’ has no member named ‘sentinel_mode’
  37.      if (!server.sentinel_mode) {
  38.                 ^
  39. server.c:5178:19: error: ‘struct redisServer’ has no member named ‘cluster_enabled’
  40.          if (server.cluster_enabled) {
  41.                    ^
  42. server.c:5186:19: error: ‘struct redisServer’ has no member named ‘ipfd_count’
  43.          if (server.ipfd_count > 0 || server.tlsfd_count > 0)
  44.                    ^
  45. server.c:5186:44: error: ‘struct redisServer’ has no member named ‘tlsfd_count’
  46.          if (server.ipfd_count > 0 || server.tlsfd_count > 0)
  47.                                             ^
  48. server.c:5188:19: error: ‘struct redisServer’ has no member named ‘sofd’
  49.          if (server.sofd > 0)
  50.                    ^
  51. server.c:5189:94: error: ‘struct redisServer’ has no member named ‘unixsocket’
  52.              serverLog(LL_NOTICE,"The server is now ready to accept connections at %s", server.unixsocket);
  53.                                                                                               ^
  54. server.c:5190:19: error: ‘struct redisServer’ has no member named ‘supervised_mode’
  55.          if (server.supervised_mode == SUPERVISED_SYSTEMD) {
  56.                    ^
  57. server.c:5191:24: error: ‘struct redisServer’ has no member named ‘masterhost’
  58.              if (!server.masterhost) {
  59.                         ^
  60. server.c:5201:19: error: ‘struct redisServer’ has no member named ‘supervised_mode’
  61.          if (server.supervised_mode == SUPERVISED_SYSTEMD) {
  62.                    ^
  63. server.c:5208:15: error: ‘struct redisServer’ has no member named ‘maxmemory’
  64.      if (server.maxmemory > 0 && server.maxmemory < 1024*1024) {
  65.                ^
  66. server.c:5208:39: error: ‘struct redisServer’ has no member named ‘maxmemory’
  67.      if (server.maxmemory > 0 && server.maxmemory < 1024*1024) {
  68.                                        ^
  69. server.c:5209:176: error: ‘struct redisServer’ has no member named ‘maxmemory’
  70.          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);
  71.                                                                                                                                                                                 ^
  72. server.c:5212:31: error: ‘struct redisServer’ has no member named ‘server_cpulist’
  73.      redisSetCpuAffinity(server.server_cpulist);
  74.                                ^
  75. server.c: In function ‘hasActiveChildProcess’:
  76. server.c:1480:1: warning: control reaches end of non-void function [-Wreturn-type]
  77.  }
  78.  ^
  79. server.c: In function ‘allPersistenceDisabled’:
  80. server.c:1486:1: warning: control reaches end of non-void function [-Wreturn-type]
  81.  }
  82.  ^
  83. server.c: In function ‘writeCommandsDeniedByDiskError’:
  84. server.c:3826:1: warning: control reaches end of non-void function [-Wreturn-type]
  85.  }
  86.  ^
  87. server.c: In function ‘iAmMaster’:
  88. server.c:5000:1: warning: control reaches end of non-void function [-Wreturn-type]
  89.  }
  90.  ^
  91. make[1]: *** [server.o] Error 1
  92. make[1]: Leaving directory `/opt/redis-6.0.6/src'
  93. 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

  1. yum -y install gcc gcc-c++ make tcl
  2. yum -y install centos-release-scl
  3. 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。