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.

Featured blog posts

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 ...

Database

Why column stores?

Introduction

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

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 ...

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 ...

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 ...

Cassandra

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

Introduction

I have a ...

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Analytics

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John Schulz

Featured blog posts

So you have a broken Cassandra SSTable file?

Why column stores?

Introduction

The things I hate about Apache Cassandra

Intro

The case against auto increment in MySQL

Introduction

How to build your very own Cassandra 4.0 release

Cassandra as a time series database

Reasons

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

Introduction

Featured News

Pythian Leaders Recognized on CRN’s 2026 Women of the Channel List

Pythian and Three of Its Leaders Named Finalists for the 2025 CRN Women of the Year Awards

Pythian India Earns “Great Place to Work” Certification for Fourth Consecutive Year

Pythian’s Vanessa Simmons and Donna Williston Again Named to CRN’s 2025 Women of the Channel List

Pythian Positioned as Oracle Database @ Google Cloud Leader with Acquisition of Rittman Mead

Pythian Doubles Down on AI-Readiness, Expanding AI Practice with Valuable Services and Expertise

Pythian Launches Agentspace QuickStart

Pythian Wins 2025 Google Cloud Databases Partner of the Year for North America

Pythian and GigaOm Announce AI Partnership

Pythian Named Top Employer in Canada's National Capital Region for 2025

Pythian Welcomes Shawn Gandhi as Senior Vice President, Customer Engineering, and Country Managing Director for Canada

Pythian Announces New Oracle Database@Google Cloud Migration Services

Pythian India Earns “Great Place to Work” Certification for Third Consecutive Year

Pythian Recognized on CRN’s 2024 Solution Provider 500 List and DBTA’s 100 Companies That Matter Most in Data for 2024

Pythian Welcomes Brooks Borcherding as Chief Executive Officer

Pythian’s Vanessa Simmons and Donna Williston Honored by CRN on 2024 Women of the Channel Lists

Pythian Recognized as a Top Employer in Canada’s National Capital Region in 2024

Pythian Announces Generative AI Strategy and Offerings to Accelerate Enterprise Innovation

CRN Names Pythian’s Vanessa Simmons a 2023 Women of the Channel Power 80 Solution Provider

Award-Winning Marketing Veteran Christina O’Reilly Joins Pythian Services as Senior Vice President, Marketing

Pythian Makes Database Trends and Applications’ List of Trendsetting Solution Providers for 2023

Pythian Celebrates 25 Years of Enterprise Data, Analytics, and Cloud Success

Pythian India Achieves “Great Place to Work” Certification After Building High-Trust, High-Performance Culture

Pythian Named One of ‘The Companies That Matter Most in Data’ by Database Trends and Applications Magazine

Vanessa Simmons from Pythian Named on CRN’s 2022 Women of the Channel Power 70 Solution Providers List

Pythian Named Partner in Launch of Google Cloud Cortex Framework

Pythian’s SAP Services Practice Grows by 300 Percent in 2021

Pythian Renews Google Cloud Infrastructure Specialization in the Google Cloud Partner Advantage Program

Pythian Services Recognized on CRN’s 2022 MSP 500 List

Pythian Renews Machine Learning Partner Specialization in the Google Cloud Partner Advantage Program

Pythian Sets Company Record with Over 100 New Customers in 2021

Pythian’s CTO Paul Lewis Featured Commentary Published by InformationWeek

How to Modernize Backup Without Breaking the Bank

Pythian Launches FinOps Managed Services

Pythian Acquires SAP MSP Partner ManageServe

Pythian Taps Seasoned Cloud and Data Expert Paul Lewis as CTO

Pythian Achieves Managed Services Provider Status In the Google Cloud Partner Advantage Program

Keith Angell: Accelerating Enterprise Growth With Data And Analytics Through Remarkable Leadership

Pythian Achieves the Data Management Partner Specialization in the Google Cloud Partner Advantage Program

Pythian Adds Snowflake Data Cloud Services Suite

New CEO Keith Angell: Pythian Services A ‘Golden Nugget’

Pythian Appoints Keith Angell As CEO

Pythian Services Acquires Google Cloud Premier Partner Agosto

Pythian Announces Support For AWS Outposts As A Launch Partner

Pythian Wins 2018 Google Cloud Data Analytics Partner of the Year Award

Pythian achieves Machine Learning Partner Specialization in the Google Cloud Partner Specialization Program

Pythian achieves Cloud Migration Partner Specialization in the Google Cloud Partner Specialization Program

Pythian achieves Google Cloud Platform Partner Specialization In Infrastructure

Pythian recognized as the winner of the Microsoft Canada Application Innovation IMPACT Award

Pythian’s Vice President of Business Development recognized as one of CRN’s 2018 Women of the Channel

Pythian recognized as a leader on the 2017 IAOP Global Outsourcing 100 List

BBM Messenger selects Pythian for major Google Cloud Platform migration

Pythian launches Analytics as a Service offering

Pythian named one of Canada’s top employers for the fourth consecutive year

Pythian achieves Google Cloud Premier Partner status

Rapid sales growth drives European expansion for Pythian

Pythian announces new Board of Directors

Pythian now offers Google BigQuery services to its enterprise customers

Pythian named one of Canada’s Fastest-Growing Companies on the PROFIT 500

Pythian named Global Outsourcing 100® Rising Star for 2016

Pythian achieves Amazon Web Services Migration Competency

Pythian achieves Amazon Web Services Partner Network DevOps Competency

Pythian’s new Apache Cassandra & DataStax services

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Posts by John Schulz