ScyllaDB is a lightning fast, low-latency NoSQL column-store that boasts 1 million transactions per second per node. As a drop-in replacement for Cassandra, ScyllaDB is ready to run your app with blazingly fast reads and writes.
ScyllaDB for All is a general introduction to ScyllaDB on Compose.
Are you wondering what you'll get, or can get, with a Compose ScyllaDB deployment? Want to know what you'll need to do to manage it? Check out some of the implementation features and details down in ScyllaDB for Ops and Admins.
Just deployed ScyllaDB and want to get coding with it? Developing an application or want to try a new stack? Then see the
ScyllaDB for Developers section for resources on how to connect from different languages, command line tools and more information to get you started.
When deployed on Compose, ScyllaDB comes with these standard Compose features.
- Automatically scaling server stack that scales RAM, CPU, and I/O as your ScyllaDB data grows.
- Daily, weekly, monthly, and on-demand backups.
- Metrics displayed in the Compose UI
- Deploy, manage, backup, and otherwise automate database tasks through The Compose API.
- Guaranteed resources per deployment.
- Daily logs available for download.
Compose deployments of ScyllaDB also come with a number of ScyllaDB specific features:
- Data Browser For ScyllaDB.
- An optional add-on for real-time log access.
- Drop-in replacement for Cassandra 2.1.8, supporting the tool chain, drivers, and built in query language, cql.
- Start with 10GB storage for $193.50 - as you grow each additional gigabyte costs $18.
ScyllaDB requires fast IO and as much RAM as the total data size. For ScyllaDB to do its thing, it needs a good chunk of memory so we start your deployment off with 1GB RAM and 10GBs storage across 3 member nodes on an SSD backed cluster. Access is provided through three haproxy capsules that have 128MB each and support authentication, HTTPS, and IP whitelisting for enhanced security.
For standard deployments automatic vertical scaling occurs as your data set grows. You can also manually scale up your haproxy portals and ScyllaDB deployment from the deployment's Resources panel. A 10:1 ratio of disk to RAM is maintained, so by increasing the disk allocated to the deployment, you increase the RAM allocated. Additional resources are available in 5GB storage/510 MB memory chunks.
It is also possible to add additional TCP/haproxy portals from the Security panel.
For more information see the ScyllaDB Resources and Scaling page.
See Compose Datacenter Availability for current location availability.
Compose deployments are billed on hourly basis and grouped into a single monthly billing cycle. This means that any scaling or add-on usage will be charged from when the new resource was provisioned; not just for the month.
Depending on which scaling and add-ons options you choose, the cost will increase. For example, if you wish to add extra storage and RAM, it is billed at an additional $18/month per unit of 1GB storage/102MB memory, so an additional 5GB storage/510MB memory will cost an additional $90/month.
General billing information, answers, and details can be found in the Billing FAQ page.
ScyllaDB stores replicas on multiple nodes to ensure reliability and fault tolerance. All replicas are equally important; there is no primary or master replica, and each node knows about the other nodes. The total number of replicas across the cluster is referred to as the replication factor. A replication factor of 1 means that there is only one copy of each row on one node. A replication factor of 3 means three copies of each row, where each copy is on a different node, which is the standard configuration that Compose ScyllaDB deployment offers.
The three haproxy servers load-balance requests and provide failover stability as well as authentication, HTTPS, and IP whitelisting for additional security.
ScyallDB backups are taken using the nodetool
snapshot utility, backing up all the on-disk data files stored in the data directory. The snapshot can run while your databases are on-line. Incremental backups are not enabled on Compose deployments (which is also the default for ScyallDB), so any one backup can be used to make a full restore of your deployment.
Should something happen to your current deployment; ScyallDB backups can be restored directly into a new ScyllaDB deployment. The Backups panel has all the available daily, weekly, monthly, or on-demand backups for you to restore from. It is also possible to trigger a restore operation from the Compose API.
For more details see the Backups page and the Managing Backups via the Compose API page.
The two tools that are used to communicate with and administrate ScyllaDB are the CQL shell,
nodetool. There are installation and usage instructions over on the ScyllaDB Tools page.
The Overview panel of the Compose UI provides the basic information you need to get connected to your databases. In the section Connection info you will find Credentials and Connection Strings for your application. Cqlsh Command Line strings for connecting from your local machine or development environment. For specific connection information and examples, see the Connecting to ScyllaDB page.
This section also has the Address Translation Map for your deployment for drivers that support this type of connection. Usage information is on the Address Translation Maps page.
The full list of documentation for ScyllaDB is in the sidebar, in addition to all things Compose.
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