pingtimeout commented on code in PR #21: URL: https://github.com/apache/polaris-tools/pull/21#discussion_r2151822700
########## benchmarks/src/gatling/scala/org/apache/polaris/benchmarks/simulations/WeightedWorkloadOnTreeDataset.scala: ########## @@ -0,0 +1,164 @@ +/* + * 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.polaris.benchmarks.simulations + +import io.gatling.core.Predef._ +import io.gatling.core.structure.ScenarioBuilder +import io.gatling.http.Predef._ +import org.apache.polaris.benchmarks.actions._ +import org.apache.polaris.benchmarks.parameters.BenchmarkConfig.config +import org.apache.polaris.benchmarks.parameters.{ + ConnectionParameters, + DatasetParameters, + Distribution, + RandomNumberProvider, + WorkloadParameters +} +import org.slf4j.LoggerFactory + +import java.util.concurrent.atomic.AtomicReference +import scala.concurrent.duration._ + +/** + * This simulation performs reads and writes based on distributions specified in the config. It + * allows the simulation of workloads where e.g. a small fraction of tables get most writes. It is + * intended to be used against a Polaris instance with a pre-existing tree dataset. + */ +class WeightedWorkloadOnTreeDataset extends Simulation { + private val logger = LoggerFactory.getLogger(getClass) + + // -------------------------------------------------------------------------------- + // Load parameters + // -------------------------------------------------------------------------------- + val cp: ConnectionParameters = config.connectionParameters + val dp: DatasetParameters = config.datasetParameters + val wp: WorkloadParameters = config.workloadParameters + + println("### Reader distributions ###") + wp.weightedWorkloadOnTreeDataset.readers.foreach(_.printDescription(dp)) + + println("### Writer distributions ###") + wp.weightedWorkloadOnTreeDataset.writers.foreach(_.printDescription(dp)) + + // -------------------------------------------------------------------------------- + // Helper values + // -------------------------------------------------------------------------------- + private val accessToken: AtomicReference[String] = new AtomicReference() + + private val authActions = AuthenticationActions(cp, accessToken) + private val tblActions = TableActions(dp, wp, accessToken) + + // -------------------------------------------------------------------------------- + // Authentication related workloads + // -------------------------------------------------------------------------------- + val refreshOauthForDuration: ScenarioBuilder = + scenario("Authenticate every minute using the Iceberg REST API") + .during(wp.weightedWorkloadOnTreeDataset.durationInMinutes.minutes) { + feed(authActions.feeder()) + .exec(authActions.authenticateAndSaveAccessToken) + .pause(30.seconds) + } + + val waitForAuthentication: ScenarioBuilder = + scenario("Wait for the authentication token to be available") + .asLongAs(_ => accessToken.get() == null) { + pause(1.second) + } + + // -------------------------------------------------------------------------------- + // Build up the HTTP protocol configuration and set up the simulation + // -------------------------------------------------------------------------------- + private val httpProtocol = http + .baseUrl(cp.baseUrl) + .acceptHeader("application/json") + .contentTypeHeader("application/json") + .disableCaching + + // -------------------------------------------------------------------------------- + // Create all reader/writer scenarios and prepare them for injection + // -------------------------------------------------------------------------------- + private val readerScenarioBuilders: List[ScenarioBuilder] = + wp.weightedWorkloadOnTreeDataset.readers.zipWithIndex.flatMap { case (dist, i) => + (0 until dist.count).map { threadId => + val rnp = RandomNumberProvider(wp.weightedWorkloadOnTreeDataset.seed, i * 1000 + threadId) + scenario(s"Reader-$i-$threadId") + .exec(authActions.restoreAccessTokenInSession) + .during(wp.weightedWorkloadOnTreeDataset.durationInMinutes.minutes) { + exec { session => + val tableIndex = dist.sample(dp.maxPossibleTables, rnp) + val (catalog, namespace, table) = + Distribution.tableIndexToIdentifier(tableIndex, dp) + + // Checked in `fetchTable` + val expectedProperties: Map[String, String] = (0 until dp.numTableProperties) + .map(id => s"InitialAttribute_$id" -> s"$id") + .toMap + val expectedLocation = + s"${dp.defaultBaseLocation}/$catalog/${namespace.mkString("/")}/${table}" + + session + .set("catalogName", catalog) + .set("multipartNamespace", namespace.mkString(0x1f.toChar.toString)) + .set("tableName", table) + .set("initialProperties", expectedProperties) + .set("location", expectedLocation) Review Comment: Ok let's keep this version and improve later -- This is an automated message from the Apache Git Service. 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