Description
Apache Cassandra
The Apache Cassandra database is the right choice when you need scalability and
high availability without compromising performance. Linear scalability and
proven fault-tolerance on commodity hardware or cloud infrastructure make it the
perfect platform for mission-critical data. Cassandra's support for replicating
across multiple datacenters is best-in-class, providing lower latency for your
users and the peace of mind of knowing that you can survive regional outages.
DataStax Enterprise
The most advanced distribution of Apache Cassandra™ on the market, with the
enterprise functionality needed for serious production systems and backed up and
supported by the best-distributed experts in the world. It's one platform for
all types of applications anywhere, any cloud, any model: key-value, graph,
tabular, JSON.
DataStax Enterprise is a fully integrated and optimized database, with graph,
analytics, and search included, all with a unified security model. Simply put,
it's the only database capable of meeting today's demanding requirements.
Operator Details
cass-operator is designed as a modular operator for Apache Cassandra and
derived distributions. Apache Cassandra is a distributed database consisting of
multiple nodes working in concert to store data and process queries along a
number of fault domains. cass-operator handles the deployment of a Cassandra
cluster around the logical domain of a datacenter with the CassandraDatacenter
custom resource.
Upon submission of one of these resources, it handles provisioning the underlying
stateful sets (analogous to C\* logical racks), services, and configuration.
Additionally through monitoring pod state via Kubernetes callbacks it handles day-to-day
operations such as restarting failed processes, scaling clusters up / down, and deploying
configuration changes in a rolling, non-disruptive, fashion.
This operator may be deployed at the namespace or cluster levels. A single OpenShift cluster may
be running multiple instances of this operator, in separate namespaces, to support
a number of C* clusters and environments. Configuration is simple with the usage of
YAML-based overrides in the Custom Resource paired with an init container.
In C* clusters ordering and timing of certain operations are important to keep the system
evenly distributed. cass-operator leverages a management process within the
main container to handle the orchestration of starting the main C* processes across nodes.
