Hello pulsar community, I've opened `PIP-231: Add metric for topic load failed` to discuss.
Motivation: Currently, we have topic_load_times <https://pulsar.apache.org/docs/next/reference-metrics/#broker-metrics> metric to tracking how long a topic load succeed. But when loading a topic, there are may have some chances the topic load failed due to MetadataStore or Bookkeeper, and we don't have related metrics to track it. For more details, please read the PIP at https://github.com/apache/pulsar/issues/18979 I'm looking forward to hearing what you think. Thanks, Tao Jiuming
