Spawn a worker

Usage

worker_spawn(queue_name, logfile, redis_host = "127.0.0.1", redis_port = 6379, n = 1, timeout = 20, time_poll = 1, heartbeat_period = NULL, heartbeat_expire = NULL, path = ".")

Arguments

queue_name

Name of the queue to connect to

logfile

Name of a log file to write to (consider tempfile()). If n > 1, then n log files must be provided.

redis_host

Host name/IP for the Redis server

redis_port

Port for the Redis server

n

Number of workers to spawn

timeout

Time to wait for the worker to appear

time_poll

Period to poll for the worker (must be in seconds)

heartbeat_period

Period between heartbeat pulses

heartbeat_expire

Time that heartbeat pulses will persist

path

Path to start the worker in. By default workers will start in the current working directory, but you can start them elsewhere by providing a path here. If the path does not exist, an error will be thrown. If n is greater than 1, all workers will start in the same working directory. The logfile argument will be interpreted relative to current working directory (not the worker working directory); use normalizePath to convert into an absolute path name to prevent this.