An application component cannot be installed on a selected node

Problem

During centralized installation of application components, there is a message stating that a node is unavailable for component installation due to failure to connect over the SSH protocol. The component is not installed on this node.

Solution

Centralized installation of an application component is impossible if the address information or network name of the computer was changed after configuring access over the SSH protocol on the node where the component will be installed. To centrally install the application component, you must restore access to the remote computer over the SSH protocol.

To restore access over the SSH protocol and install the application component:

1. On the computer from which the centralized installation of application components is performed, update the key used for connecting to the node over the SSH protocol. To do so, sign in to the system using the account credentials of the user account used to install the application, and enter the following command in the operating system console:

   sudo ssh-keygen -R <node IP address>

2. Reinstall the application with the same installation settings. During reinstallation, make sure that there is no message stating that the node is unavailable for component installation.