Repair is one of several anti-entropy mechanisms in Scylla. It is used to synchronize data across replicas. In this post, we introduce a new repair algorithm coming with Scylla Open Source 3.1 that improves performance by operating at the row-level, rather than across entire partitions.
The CTO of OpenNMS, Jesse White, joined us at our Scylla Summit last year to talk about the OpenNMS platform and specifically Newts, a time-series database embedded within the platform that relies on Scylla as a high-performance, scalable storage engine.
Indexing is a useful tool that provides more types of queries on your tables. In principle, columns we wish to be queryable should be declared when the table is created, as part of a table’s primary key. Secondary Indexing is a neat way of making other columns queryable, but it comes with a cost of additional storage space and processing power to maintain the secondary index data coherent with the primary index information.
What if your servers themselves are compromised? This is where data at rest encryption comes into play. Data at rest secures the information persisted in a computer, such as on an SSD or HDD volume.
For a highly technical product like Scylla, the success or failure of its adoption rests heavily in knowledge transfer to the community. Documentation is fundamental to that. To find out what’s new and what’s hot in Scylla documentation, I went to the source and had this exchange with Laura Novich, Senior Technical Writer for ScyllaDB.
We recently launched Scylla Cloud, allowing you to get the most out of Scylla while not having to burden yourself with cluster management tasks. In this blog post we will cover the initial onboarding process, including creating an account and spinning up a cluster.
Today, we publicly announced Scylla Cloud, our fully-managed database as a service (DBaaS). Scylla Cloud is available immediately on Amazon Web Services (AWS) Elastic Cloud 2 (EC2) instances—including a developer instance that makes prototyping incredibly affordable. It will soon also run on Google Cloud and Microsoft Azure public cloud platforms.
“Now, here, you see, it takes all the running you can do, to keep in the same place. If you want to get somewhere else, you must run at least twice as fast as that!” — The Red Queen to Alice, Alice Through the Looking Glass In the world of Big Data, if you are not constantly evolving you are already falling behind. This is at the heart of the Red Queen syndrome, which was first applied to the evolution of natural systems. It applies just as much to the evolution of technology. ‘Now! Now!’ cried the Queen. ‘Faster! Faster!’ […]
Scylla Open Source 3.0 ships with a new format for on-disk representation, SSTable 3.0. In this article, we will discuss some of the benefits that emerge from the adoption of this format and the scenarios in which they apply. We will discuss the differences between the old and new formats, and demonstrate use cases in which the new format has significant advantages, and others where the advantages are much smaller. This is truly a situation of “Your Mileage May Vary.” For example, in one test result below, we were able to show a 53% reduction in table size. Other use […]