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| 1 | +/* |
| 2 | +# Overview |
| 3 | +Measures the maximum throughput of `receiver.receive()` in package `@azure/event-hubs`. |
| 4 | +
|
| 5 | +# Instructions |
| 6 | +1. Create an Event Hubs namespace with `Tier=Standard` and `Throughput Units=20`. |
| 7 | +2. Create an Event Hub inside the namespace. |
| 8 | +3. Set env vars `EVENTHUB_CONNECTION_STRING`, `EVENTHUB_NAME` and `CONSUMER_GROUP_NAME` at the .env file at `eventhub\event-hubs` folder. |
| 9 | +4. This test presumes that there are no messages in the event hub. |
| 10 | +5. `ts-node receive.ts [eventBodySize] [numberOfEvents]` |
| 11 | +6. Example: `ts-node receive.ts 1024 1000000` |
| 12 | + */ |
| 13 | + |
| 14 | +import { EventHubClient, EventPosition, EventData } from "@azure/event-hubs"; |
| 15 | +import { getEnvVar } from "@azure/test-utils-perfstress"; |
| 16 | +import moment from "moment"; |
| 17 | +import { delay } from "@azure/core-amqp"; |
| 18 | + |
| 19 | +// Load the .env file if it exists |
| 20 | +import * as dotenv from "dotenv"; |
| 21 | +dotenv.config({ path: "../../../.env" }); |
| 22 | + |
| 23 | +const _start = moment(); |
| 24 | + |
| 25 | +let _messages = 0; |
| 26 | + |
| 27 | +const connectionString = getEnvVar("EVENTHUB_CONNECTION_STRING"); |
| 28 | +const eventHubName = getEnvVar("EVENTHUB_NAME"); |
| 29 | +const consumerGroup = getEnvVar("CONSUMER_GROUP_NAME"); |
| 30 | + |
| 31 | +async function main(): Promise<void> { |
| 32 | + const eventBodySize = process.argv.length > 2 ? parseInt(process.argv[2]) : 1024; |
| 33 | + const numberOfEvents = process.argv.length > 3 ? parseInt(process.argv[3]) : 500; |
| 34 | + |
| 35 | + const client = EventHubClient.createFromConnectionString(connectionString, eventHubName); |
| 36 | + const partitionIds = await client.getPartitionIds(); |
| 37 | + await client.close(); |
| 38 | + |
| 39 | + log(`Total messages: ${numberOfEvents}`); |
| 40 | + |
| 41 | + await sendBatch(numberOfEvents, partitionIds, eventBodySize); |
| 42 | + const writeResultsPromise = WriteResults(numberOfEvents); |
| 43 | + |
| 44 | + await RunTest(connectionString, eventHubName, numberOfEvents, partitionIds); |
| 45 | + await writeResultsPromise; |
| 46 | +} |
| 47 | + |
| 48 | +async function sendBatch(numberOfEvents: number, partitionIds: string[], eventBodySize: number) { |
| 49 | + const _payload = Buffer.alloc(eventBodySize); |
| 50 | + const producer = EventHubClient.createFromConnectionString(connectionString, eventHubName); |
| 51 | + const numberOfPartitions = partitionIds.length; |
| 52 | + const numberOfEventsPerPartition = Math.ceil(numberOfEvents / numberOfPartitions); |
| 53 | + |
| 54 | + for (let partitionId of partitionIds) { |
| 55 | + let numberOfEventsSent = 0; |
| 56 | + while (numberOfEventsSent <= numberOfEventsPerPartition) { |
| 57 | + await producer.send({ body: _payload }, partitionId); |
| 58 | + numberOfEventsSent++; |
| 59 | + } |
| 60 | + } |
| 61 | + await producer.close(); |
| 62 | +} |
| 63 | + |
| 64 | +async function RunTest( |
| 65 | + connectionString: string, |
| 66 | + eventHubName: string, |
| 67 | + messages: number, |
| 68 | + partitionIds: string[] |
| 69 | +): Promise<void> { |
| 70 | + const consumerClient = EventHubClient.createFromConnectionString(connectionString, eventHubName); |
| 71 | + |
| 72 | + const onMessageHandler = async (_: EventData) => { |
| 73 | + _messages++; |
| 74 | + if (_messages === messages) { |
| 75 | + await consumerClient.close(); |
| 76 | + } |
| 77 | + }; |
| 78 | + const onErrorHandler = async (err: Error) => { |
| 79 | + console.log(`Error on partition : ${err}`); |
| 80 | + }; |
| 81 | + |
| 82 | + for (let partitionId of partitionIds) { |
| 83 | + consumerClient.receive(partitionId, onMessageHandler, onErrorHandler, { |
| 84 | + eventPosition: EventPosition.fromStart(), |
| 85 | + consumerGroup |
| 86 | + }); |
| 87 | + } |
| 88 | +} |
| 89 | + |
| 90 | +async function WriteResults(messages: number): Promise<void> { |
| 91 | + let lastMessages = 0; |
| 92 | + let lastElapsed = 0; |
| 93 | + let maxMessages = 0; |
| 94 | + let maxElapsed = Number.MAX_SAFE_INTEGER; |
| 95 | + |
| 96 | + do { |
| 97 | + await delay(1000); |
| 98 | + |
| 99 | + const receivedMessages = _messages; |
| 100 | + const currentMessages = receivedMessages - lastMessages; |
| 101 | + lastMessages = receivedMessages; |
| 102 | + |
| 103 | + const elapsed = moment().diff(_start); |
| 104 | + const currentElapsed = elapsed - lastElapsed; |
| 105 | + lastElapsed = elapsed; |
| 106 | + |
| 107 | + if (currentMessages / currentElapsed > maxMessages / maxElapsed) { |
| 108 | + maxMessages = currentMessages; |
| 109 | + maxElapsed = currentElapsed; |
| 110 | + } |
| 111 | + |
| 112 | + WriteResult( |
| 113 | + receivedMessages, |
| 114 | + elapsed, |
| 115 | + currentMessages, |
| 116 | + currentElapsed, |
| 117 | + maxMessages, |
| 118 | + maxElapsed |
| 119 | + ); |
| 120 | + } while (_messages < messages); |
| 121 | +} |
| 122 | + |
| 123 | +function WriteResult( |
| 124 | + totalMessages: number, |
| 125 | + totalElapsed: number, |
| 126 | + currentMessages: number, |
| 127 | + currentElapsed: number, |
| 128 | + maxMessages: number, |
| 129 | + maxElapsed: number |
| 130 | +): void { |
| 131 | + const memoryUsage = process.memoryUsage(); |
| 132 | + log( |
| 133 | + `\tTot Msg\t${totalMessages}` + |
| 134 | + `\tCur MPS\t${Math.round((currentMessages * 1000) / currentElapsed)}` + |
| 135 | + `\tAvg MPS\t${Math.round((totalMessages * 1000) / totalElapsed)}` + |
| 136 | + `\tMax MPS\t${Math.round((maxMessages * 1000) / maxElapsed)}` + |
| 137 | + `\tRSS\t${memoryUsage.rss}` + |
| 138 | + `\tHeapUsed\t${memoryUsage.heapUsed}` |
| 139 | + ); |
| 140 | +} |
| 141 | + |
| 142 | +function log(message: string): void { |
| 143 | + console.log(`[${moment().format("hh:mm:ss.SSS")}] ${message}`); |
| 144 | +} |
| 145 | + |
| 146 | +main().catch((err) => { |
| 147 | + log(`Error occurred: ${err}`); |
| 148 | +}); |
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