Heartbeat Loop — heartbeat • rush

The heartbeat loop updates the heartbeat key if the worker is still alive. If the kill key is set, the worker is killed. This function is called in a callr session.

Usage

heartbeat(
  network_id,
  config,
  worker_id,
  heartbeat_period,
  heartbeat_expire,
  pid
)

Arguments

network_id: (character(1))
Identifier of the rush network. Controller and workers must have the same instance id. Keys in Redis are prefixed with the instance id.
config: (redux::redis_config)
Redis configuration options.
worker_id: (character(1))
Identifier of the worker. Keys in redis specific to the worker are prefixed with the worker id.
heartbeat_period: (integer(1))
Period of the heartbeat in seconds. The heartbeat is updated every heartbeat_period seconds.
heartbeat_expire: (integer(1))
Time to live of the heartbeat in seconds. The heartbeat key is set to expire after heartbeat_expire seconds.
pid: (integer(1))
Process ID of the worker.

Value

NULL