Scylla Blog

Stay up to date with recent news and updates on our Users Blog, and get under the hood on our Developers Blog.

Feb21

Scylla Open Source Release 2.3.3

Scylla Software Release

The Scylla team announces the release of Scylla Open Source 2.3.3, a bugfix release of the Scylla Open Source 2.3 stable branch. Release 2.3.3, like all past and future 2.3.y releases, is backward compatible and supports rolling upgrades. Note that the latest stable release of Scylla Open Source is release 3.0 and you are encouraged to upgrade to it. Related links: Get Scylla 2.3.3 – Docker, binary packages (under “More Versions”) Get started with Scylla Upgrade from 2.x.y to 2.x.z Upgrade from 2.3.x to 3.x Please let us know if you encounter any problems. Issues solved in this release: A […]

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Feb20

ValuStor — a memcached alternative built on Scylla

Derek Ramsey, Software Engineering Manager at Sensaphone, gave an overview of ValuStor at Scylla Summit 2018. Sensaphone is a maker of remote monitoring solutions for the Industrial Internet of Things (IIoT). Their products are designed to watch over your physical plant and equipment — such as HVAC systems, oil and gas infrastructure, livestock facilities, greenhouses, food, beverage and medical cold storage. Yet there is a lot of software behind the hardware of IIoT. ValuStor is an example of ostensible “hardware guys” teaching the software guys a thing or two. Overview and Origins of ValuStor Derek began his Scylla Summit talk […]

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Feb18

Scylla Enterprise Release 2018.1.10

Scylla Enterprise Release

The Scylla team is pleased to announce the release of Scylla Enterprise 2018.1.10, a production-ready Scylla Enterprise minor release. Scylla Enterprise 2018.1.10 is a bug fix release for the 2018.1 branch, the latest stable branch of Scylla Enterprise. Scylla Enterprise customers are encouraged to upgrade to Scylla Enterprise 2018.1.10 in coordination with the Scylla support team. The major fix in this release is avoiding reactor stalls while merging MemTable into the cache. This improvement was gradually added to the open source release, and is now backported to Scylla Enterprise. Related open source issues include: #2012, #2576, #2715, #3053, #3093, #3139, […]

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Feb14

The Complex Path for a Simple Portable Python Interpreter, or Snakes on a Data Plane

Snakes on a Data Plane

We needed a Python interpreter that can be shipped everywhere. You won’t believe what happened next! “When I said I wanted portable Python, this is NOT what I meant!” In theory, Python is a portable language. You can write your script locally and distribute it to other machines with the Python interpreter. In practice, things can go wrong for a variety of reasons. The first and simpler problem is the module system: for a script to run, all of the modules it uses must be installed. For Python-savvy users, installing them is not a problem. But for a software vendor […]

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Feb13

Scylla Open Source Release 3.0.3

Scylla Release

The Scylla team announces the release of Scylla Open Source 3.0.3, a bugfix release of the Scylla Open Source 3.0 stable branch. Scylla 3.0.3, like all past and future 3.x.y releases, is backward compatible and supports rolling upgrades. Related links: Scylla Open Source 3.0 Get Scylla Open Source 3.0.3 – Docker, binary packages, and EC2 AMI Get started with Scylla Upgrade from Scylla Open Source 3.x.y to Scylla Open Source 3.x.z Upgrade from Scylla Open Source 2.3.x to 3.x Please let us know if you encounter any problems. Issues solved in this release: Counters: Scylla rejects SSTables that contain counters […]

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Feb13

Scylla Users Share Their Stories

Customer Stories: Comcast, Zenly, Grab

  “It worked out of the box. We didn’t have to tune anything. It was all just easy.” — Derek Ramsey, Sensaphone Our favorite and most important discussions are always with our users. They tell us about their experiences with our database, how they came about using our technology, what they like about it, where we could improve, and much more. These conversations take place any number of ways — on our busy Slack channel, Zoom meetings, emails, phone calls, you name it. Of course, our most customer-centric event is our Scylla Summit user conference. “What Cassandra can do with […]

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Feb7

Moving from Cassandra to Scylla via Apache Spark: The Scylla Migrator

Scylla and Spark

Welcome to a whole new chapter in our Spark and Scylla series! This post will introduce the Scylla Migrator project – a Spark-based application that will easily and efficiently migrate existing Cassandra tables into Scylla. Over the last few years, ScyllaDB has helped many customers migrate from existing Cassandra installations to a Scylla deployment. The migration approach is detailed in this document. Briefly, the process is comprised of several phases: Create an identical schema in Scylla to hold the data; Configure the application to perform dual writes; Snapshot the historical data from Cassandra and load it into Scylla; Configure the […]

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Feb5

Scylla Manager Now Available for Scylla Open Source Users

Scylla Manager Block Diagram

Today we announce the release of Scylla Manager 1.3.1, a management system that automates maintenance tasks on a Scylla cluster. This release provides support for encrypted CQL communication with Scylla nodes and improves SSH stability. We are also shipping an official, publicly available, Scylla Manager Docker image. Most importantly, while past versions of Scylla Manager supported only Scylla Enterprise clusters, Scylla Manager 1.3.1 now also supports management of Scylla Open Source clusters of up to 5 nodes. Scylla Manager joins a growing list of Scylla management and monitoring software, including the open source Scylla Monitoring Stack, which provides cluster metrics […]

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Feb4

Scylla Open Source Release 3.0.2

Scylla Release

The Scylla team announces the release of Scylla Open Source 3.0.2, a bugfix release of the Scylla Open Source 3.0 stable branch. Scylla Open Source 3.0.2, like all past and future 3.x.y releases, is backward compatible and supports rolling upgrades. Related links: Scylla Open Source 3.0 Get Scylla Open Source 3.0.2 – Docker, binary packages, and EC2 AMI Get started with Scylla Upgrade from Scylla Open Source 3.x.y to Scylla Open Source 3.x.z Upgrade from 2.3.x to 3.x Please let us know if you encounter any problems. Issues solved in this release: CQL: ALLOW FILTERING gave the wrong result when […]

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Feb1

Meshify and Scylla: an Industrial-Strength IoT Solution

Sam Kenkel, Meshify

This is a story about the Industrial Internet of Things (IIoT). But one that began long before the Internet was invented. It was early afternoon on March 2nd, 1854, when a careless accident led to the the explosion of the main boiler at the Fales & Gray Car Factory in Hartford, Connecticut. Nineteen of the factory’s workers died immediately, and twenty-three others were injured. Destruction left in the aftermath of the Fales & Gray Car Works boiler explosion in Hartford, Connecticut, 1854. This disaster led to the foundation of the Hartford Hospital and formation of the Hartford Steam Boiler Company […]

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