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developers
21 February, 2012

Coming up in Cassandra 1.1: Row Level Isolation

Authors: Sylvain Lebresne

While Apache Cassandra does not provide ACID properties (no complex transactions support), it still provides some useful atomicity guarantees. More precisely, Cassandra has always…

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developers
15 February, 2012

Schema in Cassandra 1.1

Authors: Jonathan Ellis

The evolution of schema in Cassandra When Cassandra was first released several years ago, it followed closely the data model outlined in Google's Bigtable paper (with the notable…

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developers
11 February, 2012

Cassandra File System Design

Authors: Jake Luciani

The Cassandra File System (CFS) is an HDFS compatible filesystem built to replace the traditional Hadoop NameNode, Secondary NameNode and DataNode daemons. It is the foundation of…

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company
31 January, 2012

Getting Started with Apache Cassandra on Windows the Easy Way

Authors: Robin Schumacher
Apache Cassandra™

The legacy methods of developing with DataStax Enterprise on Windows as discussed in this blog post have evolved to using our new and improved Docker containers, which provide a…

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developers
31 January, 2012

DataStax OpsCenter Now Available on Mac

Authors: Robin Schumacher

Well, you asked and we’ve responded. You said you wanted OpsCenter on Mac on one of the polls we recently took, and now you’ve got your wish.  You can now download and run DataStax…

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company
31 January, 2012

Working with Apache Cassandra on Mac OS X

Authors: Robin Schumacher
Apache Cassandra™

If you use Mac OS X as your platform for development work, then you may be interested to know how easy it is to use Apache Cassandra on the Mac. The following shows you how to…

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company
31 January, 2012

Apache Cassandra on Windows? Absolutely!

Authors: Robin Schumacher

Outside of politics and religion, nothing can get the blood rolling in tech folk’s bodies more than a healthy debate on the merits of operating systems, such as Linux vs. Windows vs…

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30 January, 2012

What’s new in Cassandra 1.1: live traffic sampling

Authors: Brandon Williams

Cassandra 1.0 introduced an alternate compaction strategy, LeveledCompactionStrategy, in addition to the existing SizeTieredStategy.  Deciding which one to choose can be difficult…

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company
23 January, 2012

How to Set Up and Monitor a Multi-Node Cassandra Cluster on Linux

Authors: Robin Schumacher

With a long and brutal background of setting up Oracle RAC clusters and various other MPP database systems, I was enormously pleased with how easy it is to set up and monitor a…

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developers
18 January, 2012

Amazon DynamoDB

Authors: Jonathan Ellis
Amazon Web Services

Today Amazon announced DynamoDB, a hosted database for Amazon Web Services. With DynamoDB, Amazon and Cassandra come full circle: just as Cassandra was inspired by Amazon's 2007…

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developers
17 January, 2012

Introduction to Composite Columns

Authors:

Editor's note Manually dealing with composite columns is no longer necessary when modeling with the modern Cassandra Query Language. For dealing with composite columns in the…

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developers
9 January, 2012

Your Ideal Performance: Consistency Tradeoff

Authors: Paul Cannon

The term eventual consistency often seems to bother newcomers to distributed data storage systems. Hopefully this post will be able to put a more concrete face on it. (If you are…

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company
5 January, 2012

Getting Started with Apache Cassandra

Authors: Robin Schumacher
Apache Cassandra™, Get Started

If you haven't begun using Apache Cassandra yet and you wanted a little handholding to help get you started, you're in luck. This article will help you get your feet wet with…

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developers
13 December, 2011

Test driving the new CQL utility

Authors: Robin Schumacher

One very nice feature Cassandra offers over other NoSQL databases is the Cassandra Query Language (CQL). In fact, I’ll go so far as to say CQL is an unsung hero of Cassandra and…

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developers
1 November, 2011

Install Cassandra, CQL, and OpsCenter in 5 Minutes? You Bet!

Authors: Robin Schumacher

If you think that installing Cassandra software is difficult and time-consuming, well, think again. We’ve just posted a new video to our new Cassandra Essentials tutorial series …

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developers
14 October, 2011

What’s new in Cassandra 1.0: Performance

Authors: Jonathan Ellis

As we've worked towards 1.0 over the past year, Cassandra's performance has improved spectacularly. Compared to the current release this time in 2010, we've increased our write…

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developers
11 October, 2011

When to Use Leveled Compaction

Authors: Tyler Hobbs

The Leveled Compaction Strategy was introduced in Cassandra 1.0 to address shortcomings of the size-tiered compaction strategy for some use cases. Unfortunately, it's not always…

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developers
10 October, 2011

Leveled Compaction in Apache Cassandra

Authors: Jonathan Ellis
Apache Cassandra™

Introduction to Compaction Cassandra's log-structured storage engine enables Cassandra's amazing performance and features like application-transparent compression by turning all…

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developers
3 October, 2011

Hadoop MapReduce in the Cassandra Cluster

Authors: Eric Gilmore
Hadoop

NOTE: This post pre-dates our Brisk announcement. Brisk is a new distribution that enhances the Hadoop and Hive platform with scalable low-latency data capabilities. In our…

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developers
29 September, 2011

What’s New in Cassandra 1.0: Improved Memory and Disk Space Management

Authors: Jonathan Ellis

Cassandra 1.0 incorporates several improvements to how Cassandra's storage engine manages memory and disk space, bringing better performance and addressing some of the most common…

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developers
19 September, 2011

What’s new in Cassandra 1.0: Compression

Authors: Pavel Yaskevich

Cassandra 1.0 introduces support for data compression on a per-ColumnFamily basis, one of the most-requested features since the project started. Compression maximizes the storage…

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developers
1 September, 2011

Using the Cassandra Bulk Loader

Authors: Sylvain Lebresne
DataStax Bulk Loader

Bulk loading data in Cassandra has historically been difficult. Although Cassandra has had the BinaryMemtable interface from the very beginning, BinaryMemtable is hard to use and…

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developers
20 June, 2011

Brisk 1.0 Beta 2 Released

Authors: Kris Hahn

DataStax has released Brisk 1.0 Beta 2! You can download Brisk from the DataStax web site. New Features in Brisk 1.0 Beta 2 The following new features have been added in this…

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developers
17 June, 2011

What’s New in Cassandra 0.8, Part 2: Counters

Authors: Sylvain Lebresne

Deprecation warning This post covers the obsolete Cassandra 0.8. Modern Cassandra uses counters via CQL. Original post One of the features making its debut in Cassandra 0.8.0 is…

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