The storage Engine (Storage) is the core component of MongoDB, responsible for managing how data is stored on the hard disk and memory. Starting with the MongoDB 3.2 release, MongoDB supports the multi-data storage engine (Storage engines), and
Transferred from: http://www.cnblogs.com/cswuyg/p/4355948.html1. Count Statistics result errorThis is because the distributed cluster is migrating data, which results in a count result value error and requires the use of aggregate pipeline to obtain
The recent year is busy with data processing related work, with MongoDB very much, the following is the practice process of q&a, follow-up will not be updated regularly. 1. Count Statistics result errorThis is because the distributed cluster is
The recent year is busy with data processing related work, with MongoDB very much, the following is the practice process of q&a, follow-up will not be updated regularly.1. Count Statistics result errorThis is because the distributed cluster is
Installation files: Official Website http://www.mongodb.org/downloads
Select the file to download from the system.
1. decompress the file.
Decompress the compressed package, create a folder named mongodbon on the d Drive, and copy all the. exe files
Students who use MongoDB for a period of time will surely find that mongodb tend to occupy a lot more space than the actual data size. If you use the Db.stats () command to view, you will find that MongoDB reports several different spatial size
Using MongoDB for a while will certainly find that MongoDB tends to occupy a lot more space than the actual data size problem. If you use the Db.stats () command to view it, MongoDB will report several different spatial size information, such as
"Suzhou needs to work to add me QQ, the introduction of fee-splitting" MongoDB advanced1. Database commandsA. How the command worksDrop command to delete a collection in the shell and Execute Db.refactor.drop (). Actually, this function actually
OpenStack Ceilometer use MongoDB to solve excessive disk space problem
Background: Ceilometer uses MongoDB as a database, constantly sampling, resulting in the volume of data expansion, excessive disk space consumption.
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