Update opentelemetry-agents.md

Author: craigshoemaker

articles/container-apps/opentelemetry-agents.md

@@ -4,7 +4,7 @@ description: Learn to record and query data collected using OpenTelemetry in Azu
 services: container-apps
 author: craigshoemaker
 ms.service: azure-container-apps
-ms.date: 06/16/2025
+ms.date: 07/07/2025
 ms.author: cshoe
 ms.topic: how-to
 ms.custom:
@@ -745,6 +745,13 @@ resource environment 'Microsoft.App/managedEnvironments@2024-10-02-preview' = {
 
 For more information, see [Microsoft.App/managedEnvironments](/azure/templates/microsoft.app/2024-02-02-preview/managedenvironments).
 
+## Data resilience
+
+In the event of a messaging inturruptions to an endpoint, the OpenTelemetry agent uses the following procedure to support data resilience: 
+
+- **In-memory buffering and retries**: The agent holds data in memory and keeps retrying (with backoff) for up to five minutes by default.
+- **Dropping data**: If the buffered queue fills up, or the endpoint is still down after retries, the agent discards the oldest batches to avoid running out of memory.
+
 ## Environment variables
 
 The OpenTelemetry agent automatically injects a set of environment variables into your application at runtime.