MongoDB and CouchBase are both document stores that together dominate the market of document databases. MongoDB is a clear leader in terms of market share and CouchBase is the Challenger. I wanted to check which performs better and if CouchBase is a real alternative to MongoDB. The answer to “which is a better database” is… Read More »
MongoDB provides two ways for storing binary data. The first one is the Binary data type which can store objects up to 16KB in size in a regular document. However, for larger files MongoDB offers GridFS, a filesystem like collection that can store very large files and can also be sharded and distributed across the… Read More »
For this post I used MongoDB 3.4 community edition. MongoDB has a native support for storing, indexing and querying geospatial data. Until version 2.4 it could only deal with Longitude/Latitude pairs and some basic functions. Some support for GeoJSON was added in version 2.4 and version 2.6 added full support for GeoJSON, but the legacy… Read More »
For this post I used MongoDB 3.4 open source edition and Centos 6.8 machines. OS Preparations First, we have to increase some default OS limits, mainly number of threads and number of open files: vi /etc/security/limits.conf mongod hard nproc 64000 mongod soft nproc 32000 mongod hard nofile 64000 mongod soft nofule 64000 Then we have… Read More »