an aggregator for blogs about MongoDB

Active Benchmarking in the Cloud

Recently, Joyent published a series of benchmarks using YCSB (Yahoo Cloud Service Benchmark) comparing the performance of MongoDB, PostgreSQL, and Elasticsearch between machines running in the Joyent Public Cloud and similarly configured machines running on Amazon Web Services. When I looked at the…


CHash 1.1.0 is released

TL;DR

Chash is a Clojure consistent hashing library ported from riak_core.

Changes Between 1.0.x and 1.1.0

Clojure 1.6 by Default

The library now depends on Clojure 1.6.

Change Log

Chash change log is available on GitHub.

Chash is a ClojureWerkz Project

Chash is part of the group of libraries known as ClojureWerkz, together with

  • Langohr, a Clojure client for RabbitMQ that embraces the AMQP 0.9.1 model
  • Cassaforte, a Clojure Cassandra client built around CQL
  • Monger, a Clojure MongoDB client for a more civilized age
  • Welle, a Riak client with batteries included
  • Elastisch, a minimalistic Clojure client for ElasticSearch
  • Neocons, a client for the Neo4J REST API
  • Quartzite, a powerful sche...


Explaining Ark Part 3: Why Data May Be Lost on a Failover

This is the third post in a series of posts that explains Ark, a consensus algorithm we’ve developed for TokuMX and MongoDB to fix known issues in elections and failover. The tech report… we released last week describes the


Are you still playing in the MongoHQ Sandbox?

As many of you know, MongoHQ runs free MongoDB sandboxes, mainly for experimenting and getting to know hosted MongoDB. We want you to understand what the sandboxes are designed for, what their limitations are and why you may want to start with or migrate to an Elastic Deployment. Sandboxes are all about letting people get…


Read Multiple Collections from MongoDB without Callback Hell

Your ads will be inserted here byEasy AdSense.Please go to the plugin admin page toPaste your ad code OR Suppress this ad slot. MongoDB is really fast when it comes to read from collections. But as a noSQL database, MongoDB doesn’t handle joins between them. So, if you have many collections from which you want […]