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Kiuwan On-Premises (KoP) is based on a client-server architecture that includes these major server components:

  • Apache web server
  • Wildfly application server
  • MySQL database
  • Redis in-memory data store

Kiuwan On-Premises can be installed on a single host or on multiple hosts (externalizing one, some or all of the provided infrastructure services).

You can also install Kiuwan On-Premises under your own AWS cloud, replacing the provided infrastructure services with compatible AWS services.

Kiuwan On-Premises and its roles

Kiuwan On-Premises defines three different roles for each instance:

  • Kiuwan front: receives and answers HTTPS requests, both for the web application and REST API calls.
  • Kiuwan analyzer: processes analysis results asynchronously.
  • Kiuwan scheduler: processes background tasks such as notifications and Kiuwan Insights database updates.

The default installation will create a Kiuwan instance of each role.

Supplied services

All needed services are supplied as Docker containers. The following table summarizes all the available services:

The following diagram shows the infrastructure that KoP installer will create by default:

 Image Modified

The main purpose of each piece is (service names are shown between parentheses):

  • Apache (loadbalancer): an Apache instance that balances the traffic between Kiuwan frontals (kept in the default installation to allow easy frontal scaling).
  • Kiuwan front (wildfly-f1): a Kiuwan frontal.
  • Kiuwan analyzer (wildfly-a1): a Kiuwan analyzer.
  • Kiuwan scheduler (wildfly-s1): a Kiuwan scheduler.
  • MySQL (mysql): the main Kiuwan database.
  • Redis cluster (redis_0000[n]): Redis store nodes, used by Kiuwan as data cache.
  • Redis cluster creator (clustercreator): a temporal redis container that configures each Redis node as a cluster.
  • Kiuwan updater (updater): a temporal Kiuwan instance that installs, updates and upgrades needed data or configuration.

Clustering support

Depending on your needs, the Kiuwan On-Premises architecture supports both clustered environments and single-host installations. You can:

  • Keep all services in an all-in-one host installation.
  • Under AWS, decide where each service will be installed, one by one (both Kiuwan services and infrastructure, as long as you use AWS elasticache as Redis cluster).
  • Externalize one, some or all of the provided non-Kiuwan services:
    • Apache load balancer
    • MySQL
    • Redis

All Kiuwan instance containers can be scaled up (to a limit) or down to the default configuration. This means that you can start more containers of each Kiuwan role depending on your load needs.