MongoDB BASICS (9) sharding and mongodb Basics
Sharding stores data on multiple servers. Mongodb uses sharding to support deployment of very large datasets and high throughput operations. The capabilities of a single server are limited in various aspects, such as CPU, IO, RAM, and storage space. To solve the expansion problem, the database provides two methods:
All content involving internal structures is abstract, but the structure of things often determines the nature of things. If you want to know mongodb in a more fundamental way, take it easy!
Let's talk nonsense and step into the topic:
MongoDB is a portable database that can be used on every popular platform, the so-called cross-platform feature.
A running MongoDB
Author: A Jian []
As we all know, Microsoft's software has a common feature, that is, close integration with operating systems, such as IE, DirectX, and Windows Media Player, microsoft does not provide us with uninstalling programs, so these components cannot be deleted directly. However, sometimes we really need to uninstall these software, such as the beta version of the higher version expires, and Windows does not allow these com
The speed of light input method is a good input method, but many users in the use of a period of time, found that how to uninstall can not uninstall. In fact, this is because we sometimes have other software to encounter rogue software, so that the speed of light input method can not unload. Small series specially for everyone to tidy up three methods, hope to unload the speed of light input method in the e
Recently, some netizens asked questions online: How to uninstall Kaspersky. Indeed, to uninstall Kaspersky does not want to uninstall the ordinary software so easy, need to uninstall the process to fill in the password. And if you've forgotten your password, it's even harder to uni
this point, the software installation is complete.
For the second, the method of installation is much simpler.
As in the first approach, copy the installation files to your directory. Then use RPM to install the file. The order is as follows:
#rpm-I. filename.i386.rpm
RPM will automatically unpack the installation files and install the software to the default directory. and register the software installation information into the RPM database. The function of the parameter i is to get the RP
A lot of friends always have some computer software on their computers, think the computer shortcut icon deleted the software is not, in fact, delete is only a shortcut, the software program is still on the computer, here to share with you how to use the Golden Hill Guards uninstall the computer software is not commonly used.
1. First open the table on the Golden Hill defender, right click icon will appear in the dialog box left click Open.
There are many ways to uninstall software, some are very convenient to uninstall, and some are very complicated. Here are some different types of software to take a different approach to uninstalling:
1, through the third party software uninstall. There are many tool software that can be used to remove stubborn software, some can record the installation process
Software for RPM Package installation1, determine the software version
Rpm-qa|grep softname*
Softname is the name of the software, the * wildcard character can be used in the indeterminate part. Then there will be a list of related packages.
2. Uninstall Package
Rpm-e softname_version
Softname_version is the full package name.
When uninstalling the RPM installation package, you will often experience the following error as prompted by the system:
Many users in response to 360 antivirus software uninstall, has been very annoyed. Here, small series to share with you a tutorial on how to uninstall 360 antivirus software. Specific uninstall steps from the Windows Start menu, click "Start-" program-"360 Security Center-" 360 Antivirus ", click on" Uninstall 360 anti
to uninstall the old version and how to install it using apt-get:
I strongly recommend that you follow the apt Method for installation !!!!
I strongly recommend that you follow the apt Method for installation !!!!
I strongly recommend that you follow the apt Method for installation !!!!
Don't learn me, a painful lesson... Follow the apt tutorial on the official mongodb website to install apsaradb for
In normal testing work, software is often installed and uninstalled, Which is cumbersome and tiring. Installation and uninstallation can be automated. For software installation, we can use the automation framework and click Next to install the software automatically. Uninstall software. We can use the msiexec command line tool to automatically uninstall the software.
Reading directory
Run the msiexec com
MongoDB cluster technology: replica set sharding, mongodb ClusterA MongoDB replica set is a process of synchronizing data to multiple servers. The replica set provides redundant backup of data and stores data copies on multiple servers, this improves data availability, ensures data security, and allows data recovery from hardware faults and service interruptions
Welcome to the Windows community forum and interact with 3 million technical staff. Everyone is always familiar with the uninstallation methods of Windows XP and Windows 7. In the control panel, uninstall the program and uninstall it, however, when using win8, we will find that the installation and uninstallation of win8 applications are not the same as those before.
Welcome to the Windows community forum a
Article Title: uninstall Mysql, Apache, and Php in Linux. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
The uninstall procedure is as follows:
Uninstall Mysql
[Root @ localhost ~] # Rpm-qa | grep mysql
Mod_auth_mysql-2.6.1-2
By modifying the registry to hide installed software on your computer, this method causes the uninstall list to fail to load the installed software, so be careful!Tip: After deleting the registry, Windows comes with the uninstall program, the other software comes with the uninstall software feature can not find this software, so the computer is not very familiar
How to install and uninstall a Win8 application
BitsCN.com
How to correctly install and uninstall Win8 applications
Netizens who have some knowledge about the win8 system must know how to install and uninstall the win8 application. However, some netizens do not know about the win8 application and do not know how to install and
Android NDK development (8)-uninstall the app listening itself, pop up user feedback survey, androidndk
Reprinted please indicate the source:Http://blog.csdn.net/allen315410/article/details/42521251Analysis of listening and uninstalling scenarios and Principles 1. Scenario Analysis
In my previous blog, I wrote about the NDK development practice project, using the open-source LAME library to transcode MP3, which is used as a deep understanding of the p
do not have sufficient permissions to uninstall Baidu Antivirus 1.8, please contact the system administrator. Baidu Antivirus default is not allowed through the control Panel to uninstall, into the Control Panel uninstall hundred antivirus will appear not enough permissions to uninstall the hint of Baidu Antivirus. But
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