The MongoDB® replica set is a group of nodes with one set as the primary node, and all other nodes set as secondary nodes. Only the primary node accepts “write” operations, while other nodes can only serve “read” operations according to the read preferences defined. In this blog post, we’ll focus on some MongoDB replica set scenarios, […]Read more
In this blog post, we will walk through PMM-Query Analytics for MongoDB. We will see how to analyze MongoDB query performance; review the initial parameters that we need to check; and find out how to compare MongoDB query performance with and without indexes with the help of EXPLAIN plan.
The Percona Monitoring and Management QAN (PMM-QAN) dashboard […]
In this blog post, we will discuss about how to use zone based sharding to deploy a sharded MongoDB cluster in a customized manner so that the queries and data will be redirected per geographical groupings. This feature of MongoDB is a part of its Data Center Awareness, that allows queries to be routed to […]Read more
In this blog post, we will look at MongoDB replica set tag sets, which enable you to use customized write concern and read preferences for replica set members.
This blog post will cover most of the questions that come to mind before using tag sets in a production environment.
What scenarios are these helpful for?
Do these […]
In this blog post, we will look at how chunks split and migrate in MongoDB sharding.
Sometimes even using good shard keys can create imbalanced chunks. Below, we’ll look at how jumbo chunks affect MongoDB sharding, how they are created and why they need to split into smaller chunks. We will also walk through the introduction […]
In this blog post, we’ll look at MongoDB 3.6 security improvements.
As we’ve already talked about in this series, MongoDB 3.6 has a number of new features in it. But we have talked less about the new security enhancements in this release. The MongoDB 3.6 security features are particularly exciting. Some of these are just […]