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[feat][broker] PIP-264: Add OpenTelemetry consumer metrics (#22693)
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pulsar-broker/src/main/java/org/apache/pulsar/broker/stats/OpenTelemetryConsumerStats.java
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| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. The ASF licenses this file | ||
| * to you under the Apache License, Version 2.0 (the | ||
| * "License"); you may not use this file except in compliance | ||
| * with the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, | ||
| * software distributed under the License is distributed on an | ||
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | ||
| * KIND, either express or implied. See the License for the | ||
| * specific language governing permissions and limitations | ||
| * under the License. | ||
| */ | ||
| package org.apache.pulsar.broker.stats; | ||
|
|
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| import io.opentelemetry.api.common.Attributes; | ||
| import io.opentelemetry.api.metrics.BatchCallback; | ||
| import io.opentelemetry.api.metrics.ObservableLongMeasurement; | ||
| import java.util.Collection; | ||
| import java.util.Optional; | ||
| import org.apache.pulsar.broker.PulsarService; | ||
| import org.apache.pulsar.broker.service.Consumer; | ||
| import org.apache.pulsar.broker.service.Subscription; | ||
| import org.apache.pulsar.broker.service.Topic; | ||
| import org.apache.pulsar.common.naming.TopicName; | ||
| import org.apache.pulsar.opentelemetry.OpenTelemetryAttributes; | ||
|
|
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| public class OpenTelemetryConsumerStats implements AutoCloseable { | ||
|
|
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| // Replaces pulsar_consumer_msg_rate_out | ||
| public static final String MESSAGE_OUT_COUNTER = "pulsar.broker.consumer.message.outgoing.count"; | ||
| private final ObservableLongMeasurement messageOutCounter; | ||
|
|
||
| // Replaces pulsar_consumer_msg_throughput_out | ||
| public static final String BYTES_OUT_COUNTER = "pulsar.broker.consumer.message.outgoing.size"; | ||
| private final ObservableLongMeasurement bytesOutCounter; | ||
|
|
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| // Replaces pulsar_consumer_msg_ack_rate | ||
| public static final String MESSAGE_ACK_COUNTER = "pulsar.broker.consumer.message.ack.count"; | ||
| private final ObservableLongMeasurement messageAckCounter; | ||
|
|
||
| // Replaces pulsar_consumer_msg_rate_redeliver | ||
| public static final String MESSAGE_REDELIVER_COUNTER = "pulsar.broker.consumer.message.redeliver.count"; | ||
| private final ObservableLongMeasurement messageRedeliverCounter; | ||
|
|
||
| // Replaces pulsar_consumer_unacked_messages | ||
| public static final String MESSAGE_UNACKNOWLEDGED_COUNTER = "pulsar.broker.consumer.message.unack.count"; | ||
| private final ObservableLongMeasurement messageUnacknowledgedCounter; | ||
|
|
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| // Replaces pulsar_consumer_available_permits | ||
| public static final String MESSAGE_PERMITS_COUNTER = "pulsar.broker.consumer.permit.count"; | ||
| private final ObservableLongMeasurement messagePermitsCounter; | ||
|
|
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| private final BatchCallback batchCallback; | ||
|
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| public OpenTelemetryConsumerStats(PulsarService pulsar) { | ||
| var meter = pulsar.getOpenTelemetry().getMeter(); | ||
|
|
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| messageOutCounter = meter | ||
| .counterBuilder(MESSAGE_OUT_COUNTER) | ||
| .setUnit("{message}") | ||
| .setDescription("The total number of messages dispatched to this consumer.") | ||
| .buildObserver(); | ||
|
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| bytesOutCounter = meter | ||
| .counterBuilder(BYTES_OUT_COUNTER) | ||
| .setUnit("By") | ||
| .setDescription("The total number of messages bytes dispatched to this consumer.") | ||
| .buildObserver(); | ||
|
|
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| messageAckCounter = meter | ||
| .counterBuilder(MESSAGE_ACK_COUNTER) | ||
| .setUnit("{ack}") | ||
| .setDescription("The total number of message acknowledgments received from this consumer.") | ||
| .buildObserver(); | ||
|
|
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| messageRedeliverCounter = meter | ||
| .counterBuilder(MESSAGE_REDELIVER_COUNTER) | ||
| .setUnit("{message}") | ||
| .setDescription("The total number of messages that have been redelivered to this consumer.") | ||
| .buildObserver(); | ||
|
|
||
| messageUnacknowledgedCounter = meter | ||
| .upDownCounterBuilder(MESSAGE_UNACKNOWLEDGED_COUNTER) | ||
| .setUnit("{message}") | ||
| .setDescription("The total number of messages unacknowledged by this consumer.") | ||
| .buildObserver(); | ||
|
|
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| messagePermitsCounter = meter | ||
| .upDownCounterBuilder(MESSAGE_PERMITS_COUNTER) | ||
| .setUnit("{permit}") | ||
| .setDescription("The number of permits currently available for this consumer.") | ||
| .buildObserver(); | ||
|
|
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| batchCallback = meter.batchCallback(() -> pulsar.getBrokerService() | ||
| .getTopics() | ||
| .values() | ||
| .stream() | ||
| .map(topicFuture -> topicFuture.getNow(Optional.empty())) | ||
| .filter(Optional::isPresent) | ||
| .map(Optional::get) | ||
| .map(Topic::getSubscriptions) | ||
| .flatMap(s -> s.values().stream()) | ||
| .map(Subscription::getConsumers) | ||
| .flatMap(Collection::stream) | ||
| .forEach(this::recordMetricsForConsumer), | ||
| messageOutCounter, | ||
| bytesOutCounter, | ||
| messageAckCounter, | ||
| messageRedeliverCounter, | ||
| messageUnacknowledgedCounter, | ||
| messagePermitsCounter); | ||
| } | ||
|
|
||
| @Override | ||
| public void close() { | ||
| batchCallback.close(); | ||
| } | ||
|
|
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| private void recordMetricsForConsumer(Consumer consumer) { | ||
| var subscription = consumer.getSubscription(); | ||
| var topicName = TopicName.get(subscription.getTopic().getName()); | ||
|
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| var builder = Attributes.builder() | ||
| .put(OpenTelemetryAttributes.PULSAR_CONSUMER_NAME, consumer.consumerName()) | ||
| .put(OpenTelemetryAttributes.PULSAR_CONSUMER_ID, consumer.consumerId()) | ||
| .put(OpenTelemetryAttributes.PULSAR_CONSUMER_CONNECTED_SINCE, | ||
| consumer.getConnectedSince().getEpochSecond()) | ||
| .put(OpenTelemetryAttributes.PULSAR_SUBSCRIPTION_NAME, subscription.getName()) | ||
| .put(OpenTelemetryAttributes.PULSAR_SUBSCRIPTION_TYPE, consumer.subType().toString()) | ||
| .put(OpenTelemetryAttributes.PULSAR_DOMAIN, topicName.getDomain().toString()) | ||
| .put(OpenTelemetryAttributes.PULSAR_TENANT, topicName.getTenant()) | ||
| .put(OpenTelemetryAttributes.PULSAR_NAMESPACE, topicName.getNamespace()) | ||
| .put(OpenTelemetryAttributes.PULSAR_TOPIC, topicName.getPartitionedTopicName()); | ||
| if (topicName.isPartitioned()) { | ||
| builder.put(OpenTelemetryAttributes.PULSAR_PARTITION_INDEX, topicName.getPartitionIndex()); | ||
| } | ||
| var clientAddress = consumer.getClientAddressAndPort(); | ||
| if (clientAddress != null) { | ||
| builder.put(OpenTelemetryAttributes.PULSAR_CLIENT_ADDRESS, clientAddress); | ||
| } | ||
| var clientVersion = consumer.getClientVersion(); | ||
| if (clientVersion != null) { | ||
| builder.put(OpenTelemetryAttributes.PULSAR_CLIENT_VERSION, clientVersion); | ||
| } | ||
| var metadataList = consumer.getMetadata() | ||
| .entrySet() | ||
| .stream() | ||
| .map(e -> String.format("%s:%s", e.getKey(), e.getValue())) | ||
| .toList(); | ||
| builder.put(OpenTelemetryAttributes.PULSAR_CONSUMER_METADATA, metadataList); | ||
| var attributes = builder.build(); | ||
|
|
||
| messageOutCounter.record(consumer.getMsgOutCounter(), attributes); | ||
| bytesOutCounter.record(consumer.getBytesOutCounter(), attributes); | ||
| messageAckCounter.record(consumer.getMessageAckCounter(), attributes); | ||
| messageRedeliverCounter.record(consumer.getMessageRedeliverCounter(), attributes); | ||
| messageUnacknowledgedCounter.record(consumer.getUnackedMessages(), | ||
| Attributes.builder() | ||
| .putAll(attributes) | ||
| .put(OpenTelemetryAttributes.PULSAR_CONSUMER_BLOCKED, consumer.isBlocked()) | ||
| .build()); | ||
| messagePermitsCounter.record(consumer.getAvailablePermits(), attributes); | ||
| } | ||
| } |
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