# Export settings every forwarding exporter in this tree attaches, imported by
# both collector tiers (`host-modules/otel.nix`, `host-modules/swarm-otel.nix`).
#
# `sending_queue.storage` puts the queue on the `file_storage` extension, so
# batches waiting for an exporter survive a collector restart. The journald
# receiver saves its cursor before it hands an entry on: an entry sitting in an
# in-memory queue when the exporter's target is down or the collector restarts
# counts as consumed and is not read again.
#
# `queue_size` counts requests (batches), not records. When the queue is full
# the exporter refuses new data and logs the drop; the oldest queued batches
# are kept.
#
# `max_elapsed_time = "0s"` retries a failing batch until it is accepted.
# The queue bound is what limits the disk used; the default of five minutes
# gives up on a backlog that a store restart outlasts.
{
  sending_queue = {
    enabled = true;
    storage = "file_storage";
    queue_size = 5000;
  };
  retry_on_failure = {
    enabled = true;
    max_elapsed_time = "0s";
  };
}