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Welcome to the NuoDB Blog

The Various Flavors of Two-Phase Commits — Explained
May 14 2019
Martin Kysel
Internally, NuoDB uses the two-phase commit protocol to manage durability of user data. NuoDB also supports the X/Open XA protocol for synchronizing global transactions across multiple data stores. XA is also sometimes referred to as two-phase commit. The fundamental principles in both protocols are similar, but serve different purposes. Let us explore the difference between these two protocols.
A Single Transaction Across Two Resources
Let us explore a simple use case. A simple application takes messages from one data source (outgoing_messages) and writes them to a new data source
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Simplify Your Database Deployment with NuoDB, OpenShift, and Operators
May 8 2019
Joe Leslie
The beauty of Kubernetes Operators and the new OpenShift OperatorHub (different from OperatorHub.io, a catalog for native K8s operators) is that OperatorHub is integrated into the OpenShift 4 experience, which is how it takes truly complicated technical solutions and makes deploying them so easy. When Operators were first made public in a 2016 CoreOS blog post , the goal of Operators was to make the software itself include operational knowledge that previously resided outside of the Kubernetes cluster.
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Learn How to Run Containerized Enterprise SQL Applications in the Cloud
May 6 2019
Joe Leslie
In April, Murat Karslioglu and I presented a webinar on the challenges of deploying an enterprise SQL database across multiple geographical locations in OpenShift or Kubernetes clusters. We had a lot to show, and unfortunately ran out of time to answer questions. We put together answers to those questions here for you, but if you have more, please reach out — we’d be happy to discuss any other questions or ideas you have.
How easy is it to set up NuoDB to use OpenEBS?
It’s very easy.
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Sofia Engineering Summit Builds Connections
Apr 17 2019
Martin Gallwey
As the reality of our Sofia office moved from concept (one engineer working from home) to reality (six engineers working together in a real office), it seemed that the time was ripe to have one of our almost-quarterly Engineering Summits in Bulgaria. We still have several open positions there so I felt it was a good opportunity to meet some of our recruitment partners and personally reaffirm our commitment to investing in, and growing, our office there. We believe that the strong engineering talent we are continuing to find in Sofia will
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NuoDB & Temenos at TCF2019: Your On-Ramp to Next-Gen Core Banking
Apr 3 2019
Ariff Kassam
This week we’re excited to join Temenos at the Temenos Community Forum, our first public event since partnering with them in November . Since then we’ve been working closely to deliver the cloud innovation that will help banks migrate their critical applications to the cloud. Global consumer demands are driving organizations to rethink how they architect their systems — today, customers of banks and financial
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Benchmarking Google Cloud Spanner, CockroachDB, and NuoDB
Mar 22 2019
Boris Bulanov
Interested in NuoDB's distributed SQL database and want to know how it all works? Download our white paper on NuoDB's database architecture .
Looking for the next-generation database
As a NuoDB solution architect, I constantly talk to people about what they’re looking for in a database. More and more often, architects and CTOs tell us that they’re building their next-generation data center – often using containers or cloud infrastructure - and they need a database that fits this model.

In their
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Cloud RDBMS architecture cloud architecture Google Cloud Spanner CockroachDB performance benchmark Google Cloud Platform elastic SQL cloud databases next-gen data center database performance
JDBC & Hibernate Package & Version Changes
Mar 5 2019
Ariff Kassam
With NuoDB v3.4 , we changed how we package and version our JDBC and Hibernate drivers.

Previously, we have always versioned and packaged the JDBC and Hibernate drivers with the NuoDB database. This tight coupling with the NuoDB database version has led to a lot of confusion on which driver version to use with which release. Customers assumed that the version shipped with the NuoDB database is the only version that can be used with that database version.

This is not correct. In fact, it hasn’t been
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techblog drivers product release
Deploy the NuoDB Database in Docker Containers
Jan 7 2019
Joe Leslie
At NuoDB , we’ve not only been working hard to improve upon on our distributed SQL database engine, but also to make it easier to adopt NuoDB into CI/CD pipelines. NuoDB is an ANSI standard and ACID compliant SQL database that is suitable for all common deployment models, such as bare-metal, virtual machines, cloud and hybrid-cloud, and most recently container-based environments, such as Red Hat OpenShift Container Platform. At its core, NuoDB is designed to be highly scalable and fault-
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docker Containers install
Distributed Transactional Locks
Nov 13 2018
Martin Kysel
As I explained in a previous blog post , sometimes MVCC is not sufficient and an operation needs to block out all other concurrent modifications. NuoDB is able to lock three types of lockable resources: tables, schemas, and sequences. A resource can either be locked in SHARED mode (which still allows record modification, but no metadata modification) or EXCLUSIVE which prevents any concurrent modification.

EXCLUSIVE access is required for DDL that visits all records (various index operations for
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locks chairman transactions
NuoDB 3.3: Community Edition (CE) on Red Hat OpenShift!
Oct 4 2018
Joe Leslie
Try our Community Edition (CE) on Red Hat OpenShift!
We are pleased to announce that with NuoDB v3.3, our leading distributed SQL database is now integrated into Red Hat OpenShift. This enables customers to fully develop, test, deploy and operate applications needing a SQL database fully within OpenShift. OpenShift is Red Hat’s open source container application platform based on the Kubernetes for enterprise application development and deployment.

The NuoDB Community Edition (CE) is a full featured, free to use version of
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nuodb 3.3 Community Edition update product release Ephemeral openshift red hat dashboard Containers

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