The Blue Gene/Q Real-time server monitors the database transaction logs and sends events to any connected clients.
16.1 Real-time server
The Real-time server provides real-time notifications of system events to client applications. Applications use the Real-time API, provided as part of the Blue Gene Scheduler APIs, to receive these notifications. By using these notifications rather than polling the database on an interval, applications can be more efficient and responsive.
The types of system events that can be monitored using ...