Starting and Stopping the Installer
Describes how and when you need to shut down and restart the Installer.
It is seldom necessary to shut down and restart the Installer, but you might need to do so in
the following scenarios:
- You are troubleshooting an Installer issue, and stopping and restarting the Installer might resolve the issue.
- You need to upgrade the OS for a node. See When Upgrading Core with the Installer Requires an OS Upgrade.
- You want to run the Installer node in FIPS-compliant mode, and you cannot leave the Installer running because the Installer is not FIPS compliant.
Checking the Installer Status
When you are not sure if the Installer is running, use the following command to check the
status:
systemctl status mapr-installer
Starting and Restarting the Installer
To start or restart the Installer (requires
root
authentication):systemctl start mapr-installer
Stopping the Installer
Note that if you stop the Installer while an installation is in progress, any passwords that you provided to the Installer user interface are lost. The Installer retains password information in memory and not in the Installer database. If you then restart the Installer to continue the installation, the installation fails. In this scenario, you must restart the Installer and the Installer user interface and re-enter the password information to resume the installation.
To stop the Installer (requires
root
authentication):systemctl stop mapr-installer