Stop a cluster

Learn how to stop clusters in a native cloud deployment on AWS.

This article is only relevant for AWS native cloud deployments of Exasol.

Prerequisites

The database access node must be running.

Procedure

This procedure uses the c4 and confd_client command-line tools in a Linux terminal. To learn more about these tools, see Exasol Deployment Tool (c4) and ConfD.

Step 1: Connect to COS

Connect to the cluster operating system (COS) using c4 connect -i PLAY_ID -s cos.

Example:
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./c4 connect -i c3275f84 -s cos

To find the play ID, you can use c4 ps.

For more information about how to use c4 commands, see How to use c4.

Step 2: Stop the cluster

To stop all the nodes in a cluster, use the ConfD job infra_db_stop.

Parameter name Data type Description
db_name string The name of the cluster to be stopped.
Example:
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confd_client infra_db_stop db_name: WORKER1

Stopping the main cluster will stop the database on all worker clusters.

Step 3: Disconnect from COS

To disconnect from COS, use Control+D.

Verification

To verify that the cluster has stopped, use c4 ps.