| /** |
| * 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.transaction.buffer.impl; |
| |
| import io.prometheus.client.CollectorRegistry; |
| import io.prometheus.client.Counter; |
| import io.prometheus.client.Gauge; |
| import io.prometheus.client.Summary; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| import org.apache.pulsar.broker.transaction.buffer.TransactionBufferClientStats; |
| import org.apache.pulsar.client.impl.transaction.TransactionBufferHandler; |
| import org.apache.pulsar.common.naming.TopicName; |
| |
| public final class TransactionBufferClientStatsImpl implements TransactionBufferClientStats { |
| private static final double[] QUANTILES = {0.50, 0.75, 0.95, 0.99, 0.999, 0.9999, 1}; |
| private final AtomicBoolean closed = new AtomicBoolean(false); |
| |
| private final Counter abortFailed; |
| private final Counter commitFailed; |
| private final Summary abortLatency; |
| private final Summary commitLatency; |
| private final Gauge pendingRequests; |
| |
| private final boolean exposeTopicLevelMetrics; |
| |
| private static TransactionBufferClientStats instance; |
| |
| private TransactionBufferClientStatsImpl(boolean exposeTopicLevelMetrics, |
| TransactionBufferHandler handler) { |
| this.exposeTopicLevelMetrics = exposeTopicLevelMetrics; |
| String[] labelNames = exposeTopicLevelMetrics |
| ? new String[]{"namespace", "topic"} : new String[]{"namespace"}; |
| |
| this.abortFailed = Counter.build("pulsar_txn_tb_client_abort_failed", "-") |
| .labelNames(labelNames) |
| .register(); |
| this.commitFailed = Counter.build("pulsar_txn_tb_client_commit_failed", "-") |
| .labelNames(labelNames) |
| .register(); |
| this.abortLatency = |
| this.buildSummary("pulsar_txn_tb_client_abort_latency", "-", labelNames); |
| this.commitLatency = |
| this.buildSummary("pulsar_txn_tb_client_commit_latency", "-", labelNames); |
| |
| this.pendingRequests = Gauge.build("pulsar_txn_tb_client_pending_requests", "-") |
| .register() |
| .setChild(new Gauge.Child() { |
| @Override |
| public double get() { |
| return null == handler ? 0 : handler.getPendingRequestsCount(); |
| } |
| }); |
| } |
| |
| private Summary buildSummary(String name, String help, String[] labelNames) { |
| Summary.Builder builder = Summary.build(name, help) |
| .labelNames(labelNames); |
| for (double quantile : QUANTILES) { |
| builder.quantile(quantile, 0.01D); |
| } |
| return builder.register(); |
| } |
| |
| public static synchronized TransactionBufferClientStats getInstance(boolean exposeTopicLevelMetrics, |
| TransactionBufferHandler handler) { |
| if (null == instance) { |
| instance = new TransactionBufferClientStatsImpl(exposeTopicLevelMetrics, handler); |
| } |
| |
| return instance; |
| } |
| |
| @Override |
| public void recordAbortFailed(String topic) { |
| this.abortFailed.labels(labelValues(topic)).inc(); |
| } |
| |
| @Override |
| public void recordCommitFailed(String topic) { |
| this.commitFailed.labels(labelValues(topic)).inc(); |
| } |
| |
| @Override |
| public void recordAbortLatency(String topic, long nanos) { |
| this.abortLatency.labels(labelValues(topic)).observe(nanos); |
| } |
| |
| @Override |
| public void recordCommitLatency(String topic, long nanos) { |
| this.commitLatency.labels(labelValues(topic)).observe(nanos); |
| } |
| |
| private String[] labelValues(String topic) { |
| try { |
| TopicName topicName = TopicName.get(topic); |
| return exposeTopicLevelMetrics |
| ? new String[]{topicName.getNamespace(), topic} : new String[]{topicName.getNamespace()}; |
| } catch (Throwable t) { |
| return exposeTopicLevelMetrics ? new String[]{"unknown", "unknown"} : new String[]{"unknown"}; |
| } |
| } |
| |
| @Override |
| public void close() { |
| if (this.closed.compareAndSet(false, true)) { |
| instance = null; |
| CollectorRegistry.defaultRegistry.unregister(this.abortFailed); |
| CollectorRegistry.defaultRegistry.unregister(this.commitFailed); |
| CollectorRegistry.defaultRegistry.unregister(this.abortLatency); |
| CollectorRegistry.defaultRegistry.unregister(this.commitLatency); |
| CollectorRegistry.defaultRegistry.unregister(this.pendingRequests); |
| } |
| } |
| } |