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KafkaSourceMetrics

laminar_connectors::kafka::metrics

Struct KafkaSourceMetrics 

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pub struct KafkaSourceMetrics {
    pub records_polled: IntCounter,
    pub bytes_polled: IntCounter,
    pub errors: IntCounter,
    pub batches_polled: IntCounter,
    pub commits: IntCounter,
    pub commit_failures: IntCounter,
    pub rebalances: IntCounter,
    pub lag: IntGauge,
    pub sr_discovery_successes: IntCounter,
    pub sr_discovery_failures: IntCounter,
    pub sr_discovery_timeouts: IntCounter,
}
Expand description

Prometheus-backed counters/gauges for Kafka source connector statistics.

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§records_polled: IntCounter

Total records polled from Kafka.

§bytes_polled: IntCounter

Total bytes polled from Kafka.

§errors: IntCounter

Total deserialization or consumer errors.

§batches_polled: IntCounter

Total batches returned from poll_batch().

§commits: IntCounter

Total offset commits to Kafka.

§commit_failures: IntCounter

Total offset commit failures (broker rejected, timeout, task panic).

§rebalances: IntCounter

Total consumer group rebalances.

§lag: IntGauge

Consumer lag (sum across all partitions of high_watermark - current_offset).

§sr_discovery_successes: IntCounter

Count of successful Schema Registry discoveries at DDL time.

§sr_discovery_failures: IntCounter

Count of Schema Registry discovery failures (HTTP error, parse error).

§sr_discovery_timeouts: IntCounter

Count of Schema Registry discovery timeouts.

Implementations§

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impl KafkaSourceMetrics

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pub fn new(registry: Option<&Registry>) -> Self

If registry is Some, counters are registered there (visible in the Prometheus scrape); otherwise a throwaway registry is used.

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pub fn record_poll(&self, records: u64, bytes: u64)

Records a successful poll of records records totaling bytes.

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pub fn record_error(&self)

Records a consumer or deserialization error.

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pub fn record_commit(&self)

Records a successful offset commit.

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pub fn record_commit_failure(&self)

Records an offset commit failure (broker rejection, timeout, panic).

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pub fn record_rebalance(&self)

Records a consumer group rebalance event.

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pub fn set_lag(&self, lag: u64)

Updates the consumer lag value.

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pub fn record_sr_discovery_success(&self)

Records a successful Schema Registry discovery at DDL time.

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pub fn record_sr_discovery_failure(&self)

Records a Schema Registry discovery failure.

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pub fn record_sr_discovery_timeout(&self)

Records a Schema Registry discovery timeout.

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pub fn to_connector_metrics(&self) -> ConnectorMetrics

Converts to the SDK’s ConnectorMetrics.

Trait Implementations§

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impl Clone for KafkaSourceMetrics

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fn clone(&self) -> KafkaSourceMetrics

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for KafkaSourceMetrics

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for KafkaSourceMetrics

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fn default() -> Self

Returns the “default value” for a type. Read more

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