THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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If GetTelemetrySubscriptionsResponse.RequestedMetrics indicates that no metrics are desired (RequestedMetrics is Null), the client should send a new GetTelemetrySubscriptionsRequest after the PushIntervalMs has expired. This is to avoid having to restart clients if the cluster metrics configuration is disabled temporarily by operator error or maintenance such as rolling upgrades. The default PushIntervalMs is 30000 300000 ms (5 minutes).
If GetTelemetrySubscriptionsResponse.RequestedMetrics is non-empty but does not match any metrics the client provides, then the client should send a PushTelemetryRequest at the indicated PushIntervalMs interval with an empty metrics blob. This is needed so that a broker metrics plugin can differentiate between non-responsive or buggy clients and clients that don't have metrics matching the subscription set.
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metrics- a comma-separated list of telemetry metric name prefixes, e.g.,"org.apache.kafka.producer.node.request.latency., org.apache.kafka.consumer.coordinator.rebalance.latency.max". Whitespace is ignored.interval.ms- metrics push interval in milliseconds. Defaults to 300000 ms (5 minutes if ) if not specified.match- Client matching selector that is evaluated as a list of an anchored regular expressions (i.e., "something.*" is treated as "^something.*$"). Any client that matches all of the selectors will be eligible for this metrics subscription. The regular expressions are compiled and executed using Google RE2/J. Initially supported selectors are:client_instance_id- CLIENT_INSTANCE_ID UUID string representation.client_id- client's reported client.id in the GetTelemetrySubscriptionsRequest.client_software_name- client software implementation name.client_software_version- client software implementation version.client_source_address- client connection's source address from the broker's point of view.client_source_port- client connection's source port from the broker's point of view.
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| Configuration | Description | Values |
|---|---|---|
metrics | A list of telemetry metric name prefixes which specify the metrics of interest. | An empty list means no metrics subscribed. A list containing just an empty string means all metrics subscribed. Otherwise, the list entries are prefix-matched against the metric names. |
interval.ms | The client metrics push interval in milliseconds. | Default: 30000 300000 (5 minutes) |
match | The match criteria for selecting which clients the subscription matches. If a client matches all of these criteria, the client matches the subscription. | A list of key-value pairs. The valid keys are:
The values are anchored regular expressions. |
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