Author: Aayushi Mangal

MongoDB Replica Set Scenarios and Internals – Part II (Elections)

mongodb node election to primaryIn this blog post, we will walk through the internals of the election process in MongoDB®, following on from a previous post on the internals of the replica set. You can read Part 1 here. For this post, I am refer to the same configurations we discussed before. Elections: As the term suggests, in MongoDB there is […]

MongoDB Replica set Scenarios and Internals

MongoDB replica sets replication internals rThe 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, and […]

MongoDB Explain – Using PMM-QAN for MongoDB Query Analytics

MongoDB explain plan with PMM-QAN

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 […]

The post MongoDB Explain – Using PMM-QAN for MongoDB Query Analytics appeared first on Percona Database Performance Blog.

Zone Based Sharding in MongoDB

MongoDB shard zones

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 particular […]

The post Zone Based Sharding in MongoDB appeared first on Percona Database Performance Blog.

MongoDB Replica Set Tag Sets

MongoDB Replica Set Tag Sets

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? […]

The post MongoDB Replica Set Tag Sets appeared first on Percona Database Performance Blog.

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