** WARNING: Access control is not enabled for the database. 原因分析:新版本的MongDB增加了安全性设计,推荐用户创建使用数据库时进行验证.如果用户想建立简单连接,则会提示警示信息. 解决方案: 创建管理员并设置密码 >use admin>db.createUser( { user: "admin", //用户名 pwd: "passwd", //密码 roles: [ { role: &qu…

Redis 启动警告错误解决 启动错误 1.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'…

[root@centos224]# service redisd start :M Nov :: (it was originally set to ). _._ _.-``__ ''-._ _.-`` `. `_. (/) bit .-`` .-```. ```\/ _.,_ ''-._ ( ' , .-` | `, ) Running in standalone mode |`-._`-...-` __...-.``-._| | `-._ `._ / _.-' | PID: 21985 `-…

Redis 启动警告解决[转] [root@centos224]# service redisd start 21985:M 24 Nov 04:07:20.376 * Increased maximum number of open files to 10032 (it was originally set to 1024). _._ _.-``__ ''-._ _.-`` `. `_. ''-._ Redis 3.2.1 (00000000/0) 64 bit .-`` .-```. ```…

启动错误 (1)WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.(2)WARNING overcommit_memory is set to 0! Background save may fail under low memory condition. To fix this issue…

CentOS7安装Redis,启动时会出现如下图3个警告. 问题1:WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128. 解决方式:在“/etc/sysctl.conf”文件中增加“net.core.somaxconn = 1024”配置 问题2:WARNING overcommit_memo…

启动错误 1.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 tak…

vim /etc/rc.localecho never > /sys/kernel/mm/transparent_hugepage/enabled加入上面那句到/etc/rc.local,开机启动,并且直接执行上面那句或者sudo /etc/rc.local,直接生效vim /etc/sysctl.confvm.overcommit_memory = 1net.core.somaxconn = 1024sysctl -p生效…

bootsnap依赖问题 You should add gem 'bootsnap' to your gemfile to install it or remove the line require 'bootsnap/setup' in config/boot.rb or using rails new myapp --skip-bootsnap If the app doesn’t contain the bootsnap gem already then we will need to a…

添加一个配置文件config.properties ,即便是空的也是可以的…