John Schulz

John has 40 of years experience working with data. Data in files and in Databases from flat files through ISAM to relational databases and, most recently, NoSQL. For the last 15 year he's worked on a variety of Open source technologies including MySQL, PostgreSQL, Cassandra, Riak, Hadoop, and Hbase. As a Chief Database Architect at AOL he brought MySQL in to replace Sybase and has worked hands on with MySQL databases holding hundreds of billions of rows and running millions of transactions per second. For the last three years he has been working for Pythian to help their customers improve their existing databases and select new ones for new applications.

Cassandra

So you have a broken Cassandra SSTable file?

Every few months I have a customer come to me with the following concern: my compactions for one of my Cassandra tables ...

Database

Why column stores?

Introduction I’ve been working with data in many forms for my entire career. During this time, I have occasionally ...

Cassandra

The things I hate about Apache Cassandra

Intro First, let me start by saying I do not hate Cassandra. I love Cassandra. In its place, Cassandra is a powerful ...

MySQL

The case against auto increment in MySQL

Introduction In my travels to visit many customers over the last few years, I often see my customers creating many or ...

Cassandra

How to build your very own Cassandra 4.0 release

Over the last few months, I have been seeing references to Cassandra 4.0 and some of its new features. When that ...

Cassandra

Cassandra as a time series database

Reasons When I think of Time series databases, my first thoughts go to my own experiences using a relational database ...

Cassandra

Cassandra use cases: when to use and when not to use Cassandra

Introduction I have a database server that has these features: High available by design. Can be globally distributed. ...

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John Schulz

Posts by John Schulz

So you have a broken Cassandra SSTable file?

Why column stores?

The things I hate about Apache Cassandra

The case against auto increment in MySQL

How to build your very own Cassandra 4.0 release

Cassandra as a time series database

Cassandra use cases: when to use and when not to use Cassandra

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