Heartbeat | 1

In time-based media, "heartbeat 1" is the downbeat, the reference clock, the base frequency (e.g., 1 Hz = 60 BPM).

Unlike modern cluster managers (such as Pacemaker or Corosync) which separate messaging and resource management, Heartbeat 1 utilized a monolithic architecture where messaging and resource management were tightly integrated. heartbeat 1

A single, complete cycle of contraction and relaxation. In time-based media, "heartbeat 1" is the downbeat,