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搭建高可用mongodb集群（一）——配置mongodb - 大数据 & AI - 清泛网 - 专...
...东西，所以把自己实战的步骤记录下来以备忘。我们看看如何一步一步搭建这个东东。
一、mongodb单实例。这种配置只适合简易开发时使用，生产使用不行，因为单节点挂掉整个数据业务全挂，如下图。
虽然不能生产使用，...
MySQL show current connection info
I am in a MySQL terminal session but I don't know what server I am connected to, or what database I am connected to.
3 Ans...
Create a new Ruby on Rails application using MySQL instead of SQLite
I want to create my Rails application with MySQL, because I like it so much. How can I do that in the latest version of Rails instead of the default SQLite?
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Repair all tables in one go
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from command line you can use:
mysqlcheck -A --auto-repair
http://dev.mysql.com/doc/refman/5.0/en/mysqlcheck.html
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Can I concatenate multiple MySQL rows into one field?
Using MySQL , I can do something like:
11 Answers
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C#连接有用户名密码验证的MongoDB - 更多技术 - 清泛网 - 专注C/C++及内核技术
C#连接有用户名密码验证的MongoDBMongoDB连接字符串格式如下：mongodb: [username:password@]hostname[:port][ [database][?options]]使用MongoVUE输入用户名密码能够连接M...MongoDB连接字符串格式如下：mongodb://[username:password@]hostname[:port][/[database][?option...
django test app error - Got an error creating the test database: permission denied to create databas
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Though the OP used postgresql, if you are using mysql you will have the same error. You can fix it for mysql with: => GRANT ALL ON *.* TO django@localhost; I originally tried to only GRANT CREATE... but then could not SELECT or DROP the created database. This essentia...
ERROR 2003 (HY000): Can't connect to MySQL server on '127.0.0.1' (111)
...this error(if there is no replication enabled):
run the command vim /etc/mysql/my.cnf
comment bind-address = 127.0.0.1 using the # symbol
restart your mysql server once.
Update
In Step 1, if you cannot find bind-address in the my.cnf file, look for it in /etc/mysql/mysql.conf.d/mysqld.cnf file....
Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
I have installed MySQL server and trying to connect to it, but getting the error:
18 Answers
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支撑Github的开源技术 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...取服务状态等，在2013年的QCon北京中，Giuthub的工程曾针对如何使用Hubot做运维进行过分享：《ChatOps at GitHub》。
d3
d3是使用JavaScript实现的数据可视化框架，使用HTML、SVG和CSS等，在d3的基础之上发展处诸如crossfilter、NVD3.js等一...