[root@hadoop-master mnt]# mkdir reids
 
[root@hadoop-master redis]# cd redis
 
[root@hadoop-master redis]# wget http://download.redis.io/releases/redis-6.0.5.tar.gz
 
[root@hadoop-master redis# tar xzf redis-6.0.5.tar.gz
 
[root@hadoop-master redis]# cd redis-6.0.5
 
[root@hadoop-master redis-6.0.5]# make install PREFIX=/mnt/redis

make[1]: *** [server.o] 錯誤 1
make[1]: 離開目錄“/usr/redis-6.0.1/src”
make: *** [all] 錯誤 2
server.c:2402:11: 錯誤：‘struct redisServer'沒有名為‘assert_file'的成員
   server.assert_file = "no file>";
      ^
server.c:2403:11: 錯誤：‘struct redisServer'沒有名為‘assert_line'的成員
   server.assert_line = 0;
      ^
server.c:2404:11: 錯誤：‘struct redisServer'沒有名為‘bug_report_start'的成員
   server.bug_report_start = 0;
      ^
server.c:2405:11: 錯誤：‘struct redisServer'沒有名為‘watchdog_period'的成員
   server.watchdog_period = 0;
      ^
server.c:2411:11: 錯誤：‘struct redisServer'沒有名為‘lua_always_replicate_commands'的成員
   server.lua_always_replicate_commands = 1;

[root@hadoop-master redis-6.0.5]# gcc -v               # 查看gcc版本
[root@hadoop-master redis-6.0.5]# yum -y install centos-release-scl # 升級到9.1版本
[root@hadoop-master redis-6.0.5]# yum -y install devtoolset-9-gcc devtoolset-9-gcc-c++ devtoolset-9-binutils
[root@hadoop-master redis-6.0.5]# scl enable devtoolset-9 bash
以上為臨時啟用，如果要長期使用gcc 9.1的話：
[root@hadoop-master redis-6.0.5]# echo "source /opt/rh/devtoolset-9/enable" >>/etc/profile

#指定安裝的位置
[root@hadoop-master redis-6.0.5]# make install PREFIX=/mnt/redis

[root@localhost redis-6.0.5]# yum install tcl
[root@localhost redis-6.0.5]# make test

[root@hadoop-master redis]# cd /mnt/redis/bin/
 
#指定配置文件
[root@hadoop-master bin]# ./redis-server ../redis-6.0.5/redis.conf

# 啟動server出現的問題
src/redis-server
    
# warning 1 > 提示修改 linux內核參數
# WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.
echo 1024 >/proc/sys/net/core/somaxconn
    
# warn 2 > 提示如下
# WARNING overcommit_memory is set to 0! Background save may fail under low memory condition. To fix this issue add 'vm.overcommit_memory = 1' to /etc/sysctl.conf and then reboot or run the command 'sysctl vm.overcommit_memory=1' for this to take effect.
echo "vm.overcommit_memory = 1" >> /etc/sysctl.conf
 
sysctl vm.overcommit_memory=1
    
# warning 3
# WARNING you have Transparent Huge Pages (THP) support enabled in your kernel. This will create latency and memory usage issues with Redis. To fix this issue run the command 'echo never > /sys/kernel/mm/transparent_hugepage/enabled' as root, and add it to your /etc/rc.local in order to retain the setting after a reboot. Redis must be restarted after THP is disabled
echo never > /sys/kernel/mm/transparent_hugepage/enabled
    
# 云服務器要注意ip要寫對，端口要開放
# 虛擬機要注意防火墻要關閉 systemctl stop firewalld.service