Package org.apache.beam.sdk.io.kafka

Class KafkaMetrics.KafkaMetricsImpl

java.lang.Object

org.apache.beam.sdk.io.kafka.KafkaMetrics.KafkaMetricsImpl

All Implemented Interfaces:

KafkaMetrics

Enclosing interface:

KafkaMetrics

public abstract static class KafkaMetrics.KafkaMetricsImpl
extends java.lang.Object
implements KafkaMetrics

Metrics of a batch of RPCs. Member variables are thread safe; however, this class does not have atomicity across member variables.

Expected usage: A number of threads record metrics in an instance of this class with the member methods. Afterwards, a single thread should call updateStreamingInsertsMetrics which will export all counters metrics and RPC latency distribution metrics to the underlying perWorkerMetrics container. Afterwards, metrics should not be written/read from this object.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.beam.sdk.io.kafka.KafkaMetrics

KafkaMetrics.KafkaMetricsImpl, KafkaMetrics.NoOpKafkaMetrics

Constructor Summary

Constructors

Constructor	Description
KafkaMetricsImpl()

Method Summary

Modifier and Type	Method	Description
static KafkaMetrics.KafkaMetricsImpl	create()
void	updateKafkaMetrics()	Export all metrics recorded in this instance to the underlying perWorkerMetrics containers.
void	updateSuccessfulRpcMetrics(java.lang.String topic, java.time.Duration elapsedTime)	Record the rpc status and latency of a successful Kafka poll RPC call.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

KafkaMetricsImpl

public KafkaMetricsImpl()

Method Detail

create

public static KafkaMetrics.KafkaMetricsImpl create()

updateSuccessfulRpcMetrics

public void updateSuccessfulRpcMetrics(java.lang.String topic,
                                       java.time.Duration elapsedTime)

Record the rpc status and latency of a successful Kafka poll RPC call.

Specified by:

updateSuccessfulRpcMetrics in interface KafkaMetrics

updateKafkaMetrics

public void updateKafkaMetrics()

Export all metrics recorded in this instance to the underlying perWorkerMetrics containers. This function will only report metrics once per instance. Subsequent calls to this function will no-op.

Specified by:

updateKafkaMetrics in interface KafkaMetrics