Welcome!
Hello, and welcome to Evernote’s new technology blog. Our main company blog is a great place to learn what we do, and this is the place where we’ll talk about how we do it (and, occasionally, why…)....
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A Digest of Evernote’s Architecture (*)
Let’s get things started with a coarse-grained overview of the physical makeup of the Evernote service. I won’t go into a lot of detail on each component here; we’ll aim to talk about the interesting...
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Evernote Indexing System
Evernote Indexing System is designed to extend Evernote search capabilities beyond text documents into media files. Its task is to peruse through those files and bring any textual information into the...
View ArticleEven Grittier Details on Evernote’s Indexing System
Alex’s earlier article on Evernote’s image recognition component touched on a lot of its service-level functionality — what it is, how it works, and what it provides in relation to the Evernote...
View ArticleWhySQL?
When we describe our overall service architecture to smart people who have been involved in other big services, the two most common questions are: Why is your structured data stored in SQL databases...
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Automatic Memory Machine
Evernote’s Operations department has spent a great deal of effort automating our server installs. I wanted to spend some time sharing this work and provide some hints if anyone else is interested in...
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Protecting your data: the broken drives edition
In our blog post “Evernote’s Three Laws of Data Protection”, Phil touches on some of the measures we take to protect your data and our goal of being a trusted place for it. There is much more we do, so...
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In depth: Descriptive Search in Evernote
The following is a behind the scenes walkthrough of Descriptive Search within Evernote by our Augmented Intelligence Engineer, Adam Walz. For our public announcement of Descriptive Search, click here....
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Shards Over Easy
In previous Operations architectural posts, we discussed an overview of the Evernote service, as well as a deeper dive into the improvements we’ve made to our NoteStore “shard” server infrastructure....
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