retryDelay property
How long to wait before retrying a batch that was handed back through the retry buffer.
Applies only after a batch returned entries, so a handler that keeps
up pays nothing. Retries always go through the event loop, never the
microtask queue, so a permanently unavailable sink can no longer starve
timers, I/O or the application's own close call — but with the
default Duration.zero the queue still retries as fast as the event
loop allows. Set a non-zero value when the sink can be down for a
while.
Implementation
final Duration retryDelay;