Posts tagged nosql

All Your Voter Data Are Belong To H4x0rz

nosql mongo hyperdex security data breach December 28, 2015 at 07:00 PM Emin Gün Sirer
The biggest data breach of the year. Of course, it involves Mongo.

More Mongo than Mongo

mongo hyperdex nosql January 12, 2015 at 01:45 PM Kai Mast, Robert Escriva, and Emin Gün Sirer
HyperDex now does Mongo better and faster than MongoDB.

To Shard or Not To Shard (A Graph)?

weaver graph stores nosql December 19, 2014 at 10:55 AM Ayush Dubey and Emin Gün Sirer
In this post, we discuss when and why it makes sense to shard a graph.

Introducing Weaver

weaver graph stores nosql release docker December 16, 2014 at 11:02 AM Ayush Dubey, Robert Escriva, and Emin Gün Sirer
We built a new distributed graph store, called Weaver, that can perform ACID transactions on graphs. The alpha version is available, this post shows the first few steps on how to use it.

On the Futility of Custom Consistency Models

hyperdex nosql consistency November 28, 2014 at 09:57 PM Emin Gün Sirer
Custom consistency models, which differ on how weak they are, are no good if they can't outperform strong consistency.

Time for Better Security for NoSQL

nosql hyperdex security opsec release November 23, 2014 at 11:25 AM Robert Escriva and Emin Gün Sirer
It's time to secure data in NoSQL databases with strong guarantees, at fine granularity, and with low overhead. Macaroons, from Google, are designed for this purpose. This post shows have Macaroons can be used in HyperDex to secure NoSQL data.

Storing Documents in HyperDex with Node.JS

nosql hyperdex nodejs October 23, 2014 at 02:36 PM Robert Escriva and Emin Gün Sirer
HyperDex now supports documents and Node.js. This post describes how to write Node programs using HyperDex as a document store.

NoSQL Meets Bitcoin and Brings Down Two Exchanges: The Story of Flexcoin and Poloniex

nosql bitcoin mongo broken April 06, 2014 at 12:15 PM Emin Gün Sirer
The real story of how weak NoSQL systems allowed users to make money out of the thin air and brought down two Bitcoin exchanges, one permanently.

Back That NoSQL Up

hyperdex backup nosql January 14, 2014 at 05:00 PM Robert Escriva and Emin Gün Sirer
HyperDex gets a fast, flexible, incremental backup manager.

The Consistency Alphabet Soup

consistency nosql March 23, 2013 at 03:10 PM Emin Gün Sirer
There are many conflicting definitions for Consistency. This post provides a clear definition for each, without rehashing any tired old arguments about eventual consistency.

What is NoSQL and is it pornography?

nosql definition February 14, 2013 at 08:24 AM Emin Gün Sirer
We have a huge, emerging industry called NoSQL, and yet there is no proper definition of what it is. This post identifies the problem and proposes a constructive, useful definition.

Broken by Design: MongoDB Fault Tolerance

mongo nosql fault-tolerance bolt-on engineering broken January 29, 2013 at 02:15 PM Emin Gün Sirer
MongoDB claims that it provides fault-tolerance. In this note, I explain why and how it falls short.