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changes.mady.by.user Magnus Edenhill

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changes.mady.by.user Magnus Edenhill

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  • 14 PushTelemetryRequests/second per broker
  • 15 kb/s requests / broker
  • 3 kb/s responses / broker
  • 112 kb/s uncompressed OTLP metrics provided to metrics plugin per broker. 1.3MB/s per cluster.


Note: A future optimization could be to cache subscription sets and identify each set by a unique id (e.g., the checksum of the set) generated by the broker and passed down to the client in the PushTelemetryResponse. The client could then quickly see if the subscription needed to be changed or not.

Metrics subscription

Metrics subscriptions are configured through the standard Kafka Admin API configuration interface with the new resource-type CLIENT_METRICS, the resource-name is a prefix-match of the client instance id (which as stated previously is a concatenation of the client.id and a unique uuid string). The configuration entry name is a prefix-matched metrics name (e.g., “client.producer.partition.”) while the configuration value is the desired collection/push interval in milliseconds.

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