Author - David Murphy

The Anatomy of a MongoDB Replica Set

MongoDB Replica Set

In this blog post, we’re going to break down what constitutes a MongoDB replica set.
While replica sets are not a specific environment or solution, understanding what you can do with their sophisticated features helps fit a multitude of situations. With many classical databases, you would need to use services, third party software and scripts to […]

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Mass Upgrade MongoDB Versions: from 2.6 to 3.6

Upgrade MongoDB

In this blog post, we’re going to look at how to upgrade MongoDB when leaping versions.
Here at Percona, we see every type of upgrade you could imagine. Lately, however, I see an increase very old version upgrades (OVE). This is when you upgrade MongoDB from a version more than one step before the version […]

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MongoDB 3.6 Aggregation and Array Improvements

Running MongoDB

In this blog, we’ll look at MongoDB 3.6 aggregation and array improvements.
With MongoDB 3.6 out, and us having talked about security, transactions, and sessions, we can now start to talk about something much more fun. This blog is centered on the improvements around arrays, dates and aggregations. My goal here is two parts: first […]

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MongoDB 3.6 Sessions Explained

MongoDB 3.6 Sessions

In this blog post, we’ll look at MongoDB 3.6 sessions implementation.
As I mentioned in my previous post, we are going to look a bit deeper into the new sessions in MongoDB 3.6. You should know that many of the cornerstone features of 3.6 depend directly or indirectly on sessions – things such as  “retryable” writes, […]

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