When a Cloud Server node loses the connection to its parent server, it terminates the related running sessions.

Due to an issue with accessing session data during this process, nxserver may repeatedly print warning messages, potentially flooding the system logs, if logging to system logs is enabled.

NXSERVER ServerSession/ServerSession: WARNING! Cannot send message '738 Terminate session immediately reason=iGUITerminateReasonLostConnectionWithCS ...'

As a temporary workaround, disable logging to the system log (if enabled), use NoMachine internal logs only, and decrease the log level to 5 or lower to prevent these warning messages from being logged.

This will prevent the logs from growing, but the affected process must still be terminated manually.