Stop and Start Nodes

This section explains how to stop and start individual nodes.

You can terminate and restart Exasol services on individual nodes using Exasol Deployment Tool (c4). This procedure is not recommended, as it could put the database in a corrupted state and lead to data loss. The recommended procedure is to first stop the database, then shut down the cluster nodes (hardware or virtual).

If you stop a node without first stopping the database, the database will automatically be stopped. You will then have to manually restart the database after restarting the node.

To prevent a risk of data loss, always stop the database before stopping a node, as the database may otherwise be left in a corrupted state. To safely shut down a database, see Stop a Database.