Software

Overview

An Exasol on-premises installation is deployed as an application in a Linux host operating system, which can be running on hardware or as cloud instances. Each node will contain the Exasol database engine, the cluster operating system (COS), the storage engine (EXAStorage), and software for system administration.

Exasol cluster operating system (COS) manages and monitors the nodes in the cluster. COS also manages communication between the nodes over the private (internal) network, and between the database and the database users and administrators over the public (external) network.

EXAStorage is a distributed storage engine that manages the data storage and the failover mechanisms in an Exasol deployment. Data is stored in data volumes, which can be located on either local or remote storage devices. Database backups are stored on separate backup volumes, which can be created either in the cluster or on remote storage. To learn how to create and manage volumes, see Storage Management.

Exasol Admin is an easy-to-use web interface that allows you to carry out common administration tasks such as monitoring your database, generating and analyzing logs, creating backup schedules, updating Exasol, and managing files in BucketFS. To learn more, see Exasol Admin.

ConfD is a low-level API that can be used to perform all administrative actions in Exasol. The ConfD API is available on all nodes in a deployment. You can interact with ConfD directly using the command-line tool confd_client, or indirectly through XML-RPC in your own Python programs.

Exasol Deployment Tool (c4) is a multi-purpose command line tool that is used to create, configure, and manage Exasol deployments on all supported platforms. You can also use c4 to access other administration interfaces in Exasol. For more information, see Exasol Deployment Tool (c4).

Since Exasol does not include a host operating system, you must prepare the host machines according to the system requirements for your installation platform before you deploy Exasol. To learn more, see Installation.

Connect to Exasol

Once your Exasol database is up and running, you can connect to it using various compatible database clients and other tools. To learn more about how to download and install drivers and how to connect to an Exasol database using different tools, see Connect to Exasol.