CentOS版linux中redis启动遇到错误

CentOS版linux中redis启动遇到错误:

22805:M 02 Jan 15:39:48.072 # WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.
22805:M 02 Jan 15:39:48.072 # Server initialized
22805:M 02 Jan 15:39:48.072 # 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.
22805:M 02 Jan 15:39:48.072 * DB loaded from disk: 0.000 seconds
22805:M 02 Jan 15:39:48.072 * Ready to accept connections

解决方法:
1.cd /etc
2.vim sysctl.conf设置vm.overcommit_memory=1 #保存并退出
3.sysctl -p  #让内核参数立即生效;

ps: 到此为止已经解决我遇到的redis启动不成功问题,如果你们还不能解决的话,就关闭shell重新打开看下。

sysctl -p启动时会出现错误,和本问题无关,此时不需解决:
error: "net.ipv6.conf.all.disable_ipv6" is an unknown key
error: "net.ipv6.conf.default.disable_ipv6" is an unknown key
error: "net.ipv6.conf.lo.disable_ipv6" is an unknown key


*期间不用重启服务器