@RunLLM which metric can be used to identify the oldest unacknowledged message in a topic?

The metric pulsar_storage_backlog_age_seconds can be used to identify the age (in seconds) of the oldest unacknowledged message in a topic. This metric is available at the topic level and represents the time since the earliest unacknowledged message was published, based on all subscriptions for that topic, and is updated at each backlog quota check interval. According to PIP-248: Add metrics for backlog quota event, this is the recommended metric for this purpose. Would you like more detail on how to access or interpret this metric? Sources: - PIP-248: Add metrics for backlog quota event 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.