日志报错：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.

解决办法：

将vm.overcommit_memory = 1添加到/etc/sysctl.conf中，然后执行sysctl -p生效配置。