v2.1.0

What's Changed

• Disable Batching and Force Global configuration by @Baliedge in #190
  • Batching functionality may be disabled by configuration Behaviors.DisableBatching = true.
    • Frees up some resources, goroutines.
    • Eliminates small delay in each request as batches are assembled and dispatched that may not be beneficial if batch size is typically small.
  • Force global behavior on all rate checks by configuration Behaviors.ForceGlobal = true.
    • Global behavior is unaffected by DisableBatching setting.
  • Change GlobalSyncWait default from 500µs to 500ms to reduce global sync traffic.
  • Remove unnecessary buffer from WorkerPool command channels.
  • Remove extraneous tracing detail.
  • Metric updates
    • WorkerPool metrics:
      • Renamed gubnernator_pool_queue_length to gubernator_worker_queue_length.
      • Added gubernator_command_counter: Counter of commands executed in WorkerPool.
      • Removed gubernator_check_counter.
        • Redundant. Use gubernator_getratelimit_counter{calltype="local"}.
    • Global behavior metrics:
      • Added gubernator_global_queue_length: Size of global broadcast queue.
      • Renamed gubernator_broadcast_durations to gubernator_broadcast_duration.
      • Added gubernator_broadcast_counter: Rate of global broadcasts. Label condition may be timer|queue_full to indicate what triggered the broadcast.
      • Changed gubernator_concurrent_checks_counter from summary to gauge type.
    • Batch behavior metrics:
      • Renamed gubernator_async_durations to gubernator_batch_send_duration.
      • Renamed gubernator_asyncrequest_retries to gubernator_batch_retries.
      • Renamed gubernator_queue_length to gubernator_batch_queue_length.
        • Changed from summary to gauge type.