Hi Liu Rui,

1) If we just want to have those metrics, we still have to collect all
logging data through the Loggregator system. It is a huge network overhead
for our system because our CF system is large.

You can use a metrics nozzle that only passes metrics and not logs. For
example, here is the Datadog nozzle
<https://github.com/cloudfoundry-incubator/datadog-firehose-nozzle>.

2) We will migrate to CF release 233 soon. And the /varz support for
HM9000 will be sunset. Do we have the corresponding metrics of statistics
flowing through the Loggregator system? Do we have some document for that?

<https://docs.cloudfoundry.org/loggregator/all_metrics.html>
List of CF metrics
<https://docs.cloudfoundry.org/loggregator/all_metrics.html>


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Jim Campbell | Product Manager | Cloud Foundry | Pivotal.io | 303.618.0963