Mark queue retry processor as deprecated. (#1821)

Signed-off-by: Bogdan Drutu <[email protected]>

processor/queuedprocessor/README.md

@@ -1,47 +1,3 @@
 # Queued Retry Processor
 
-Supported pipeline types: metrics, traces
-
-The queued retry processor uses a bounded queue to relay batches from the receiver
-or previous processor to the next processor. Received data is enqueued immediately
-if the queue is not full. At the same time, the processor has one or more workers
-which consume the data in the queue by sending them to the next processor or exporter.
-If relaying the data to the next processor or exporter in the pipeline fails, the
-processor retries after some backoff delay depending on the configuration.
-
-Some important things to keep in mind with the queued_retry processor:
-- Given that if the queue is full the data will be dropped, it is important to size
-the queue appropriately.
-- Since the queue is based on batches and batch sizes are environment specific, it may
-not be easy to understand how much memory a queue will consume.
-- Finally, the queue size is dependent on the deployment model of the collector. The
-agent deployment model typically has a smaller queue than the collector deployment
-model.
-
-It is highly recommended to configure the queued_retry processor on every collector
-as it minimizes the likelihood of data being dropped due to delays in processing or
-issues exporting the data. This processor should be the last processor defined in
-the pipeline because issues that require retry are typically due to exporting.
-
-Please refer to [config.go](./config.go) for the config spec.
-
-The following configuration options can be modified:
-- `backoff_delay` (default = 5s): Time interval to wait before retrying
-- `num_workers` (default = 10): Number of workers that dequeue batches
-- `queue_size` (default = 5000): Maximum number of batches kept in memory before data
-is dropped
-- `retry_on_failure` (default = true): Whether to retry on failure or give up and drop
-
-Examples:
-
-```yaml
-processors:
-  queued_retry/example:
-    backoff_delay: 5s
-    num_workers: 2
-    queue_size: 10
-    retry_on_failure: true
-```
-
-Refer to [config.yaml](./testdata/config.yaml) for detailed
-examples on using the processor.
+QueuedRetry processor is deprecated. Use exporter queued retry config.

processor/queuedprocessor/factory.go

@@ -57,6 +57,7 @@ func createTraceProcessor(
 	cfg configmodels.Processor,
 	nextConsumer consumer.TraceConsumer,
 ) (component.TraceProcessor, error) {
+	params.Logger.Warn("QueuedRetry processor is deprecated. Use exporter's queued retry config.")
 	return newQueuedTracesProcessor(params, nextConsumer, cfg.(*Config)), nil
 }
 
@@ -66,5 +67,6 @@ func createMetricsProcessor(
 	cfg configmodels.Processor,
 	nextConsumer consumer.MetricsConsumer,
 ) (component.MetricsProcessor, error) {
+	params.Logger.Warn("QueuedRetry processor is deprecated. Use exporter's queued retry config.")
 	return newQueuedMetricsProcessor(params, nextConsumer, cfg.(*Config)), nil
 }