mcvsubbu commented on code in PR #15109: URL: https://github.com/apache/pinot/pull/15109#discussion_r2112949489
########## pinot-common/src/main/java/org/apache/pinot/common/utils/config/QueryWorkloadConfigUtils.java: ########## @@ -0,0 +1,237 @@ +/** + * 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.pinot.common.utils.config; + +import com.fasterxml.jackson.core.type.TypeReference; +import com.google.common.base.Preconditions; +import java.net.URI; +import java.util.Collections; +import java.util.List; +import java.util.ArrayList; +import java.util.concurrent.atomic.AtomicReference; +import org.apache.hc.core5.http.ClassicHttpRequest; +import org.apache.hc.core5.http.HttpHeaders; +import org.apache.hc.core5.http.HttpStatus; +import org.apache.hc.core5.http.HttpVersion; +import org.apache.hc.core5.http.io.support.ClassicRequestBuilder; +import org.apache.helix.zookeeper.datamodel.ZNRecord; +import org.apache.pinot.common.messages.QueryWorkloadRefreshMessage; +import org.apache.pinot.common.utils.SimpleHttpResponse; +import org.apache.pinot.common.utils.http.HttpClient; +import org.apache.pinot.common.utils.http.HttpClientConfig; +import org.apache.pinot.common.utils.tls.TlsUtils; +import org.apache.pinot.spi.config.workload.EnforcementProfile; +import org.apache.pinot.spi.config.workload.InstanceCost; +import org.apache.pinot.spi.config.workload.NodeConfig; +import org.apache.pinot.spi.config.workload.PropagationScheme; +import org.apache.pinot.spi.config.workload.QueryWorkloadConfig; +import org.apache.pinot.spi.utils.JsonUtils; +import org.apache.pinot.spi.utils.retry.RetryPolicies; +import org.apache.pinot.spi.utils.retry.RetryPolicy; +import org.slf4j.Logger; + + +public class QueryWorkloadConfigUtils { + private QueryWorkloadConfigUtils() { + } + + private static final Logger LOGGER = org.slf4j.LoggerFactory.getLogger(QueryWorkloadConfigUtils.class); + private static final HttpClient HTTP_CLIENT = new HttpClient(HttpClientConfig.DEFAULT_HTTP_CLIENT_CONFIG, + TlsUtils.getSslContext()); + + /** + * Converts a ZNRecord into a QueryWorkloadConfig object by extracting mapFields. + * + * @param znRecord The ZNRecord containing workload config data. + * @return A QueryWorkloadConfig object. + */ + public static QueryWorkloadConfig fromZNRecord(ZNRecord znRecord) { + Preconditions.checkNotNull(znRecord, "ZNRecord cannot be null"); + String queryWorkloadName = znRecord.getSimpleField(QueryWorkloadConfig.QUERY_WORKLOAD_NAME); + Preconditions.checkNotNull(queryWorkloadName, "queryWorkloadName cannot be null"); + String nodeConfigsJson = znRecord.getSimpleField(QueryWorkloadConfig.NODE_CONFIGS); + Preconditions.checkNotNull(nodeConfigsJson, "nodeConfigs cannot be null"); + try { + List<NodeConfig> nodeConfigs = JsonUtils.stringToObject(nodeConfigsJson, new TypeReference<>() { }); + return new QueryWorkloadConfig(queryWorkloadName, nodeConfigs); + } catch (Exception e) { + String errorMessage = String.format("Failed to convert ZNRecord : %s to QueryWorkloadConfig", znRecord); + throw new RuntimeException(errorMessage, e); + } + } + + /** + * Updates a ZNRecord with the fields from a WorkloadConfig object. + * + * @param queryWorkloadConfig The QueryWorkloadConfig object to convert. + * @param znRecord The ZNRecord to update. + */ + public static void updateZNRecordWithWorkloadConfig(ZNRecord znRecord, QueryWorkloadConfig queryWorkloadConfig) { + znRecord.setSimpleField(QueryWorkloadConfig.QUERY_WORKLOAD_NAME, queryWorkloadConfig.getQueryWorkloadName()); + try { + znRecord.setSimpleField(QueryWorkloadConfig.NODE_CONFIGS, + JsonUtils.objectToString(queryWorkloadConfig.getNodeConfigs())); + } catch (Exception e) { + String errorMessage = String.format("Failed to convert QueryWorkloadConfig : %s to ZNRecord", + queryWorkloadConfig); + throw new RuntimeException(errorMessage, e); + } + } + + public static void updateZNRecordWithInstanceCost(ZNRecord znRecord, String queryWorkloadName, + InstanceCost instanceCost) { + Preconditions.checkNotNull(znRecord, "ZNRecord cannot be null"); + Preconditions.checkNotNull(instanceCost, "InstanceCost cannot be null"); + try { + znRecord.setSimpleField(QueryWorkloadConfig.QUERY_WORKLOAD_NAME, queryWorkloadName); + znRecord.setSimpleField(QueryWorkloadRefreshMessage.INSTANCE_COST, JsonUtils.objectToString(instanceCost)); + } catch (Exception e) { + String errorMessage = String.format("Failed to convert InstanceCost : %s to ZNRecord", + instanceCost); + throw new RuntimeException(errorMessage, e); + } + } + + public static InstanceCost getInstanceCostFromZNRecord(ZNRecord znRecord) { + Preconditions.checkNotNull(znRecord, "ZNRecord cannot be null"); + String instanceCostJson = znRecord.getSimpleField(QueryWorkloadRefreshMessage.INSTANCE_COST); + Preconditions.checkNotNull(instanceCostJson, "InstanceCost cannot be null"); + try { + return JsonUtils.stringToObject(instanceCostJson, InstanceCost.class); + } catch (Exception e) { + String errorMessage = String.format("Failed to convert ZNRecord : %s to InstanceCost", znRecord); + throw new RuntimeException(errorMessage, e); + } + } + + public static List<QueryWorkloadConfig> getQueryWorkloadConfigsFromController(String controllerUrl, String instanceId, + NodeConfig.Type nodeType) { + try { + if (controllerUrl == null || controllerUrl.isEmpty()) { + LOGGER.warn("Controller URL is empty, cannot fetch query workload configs for instance: {}", instanceId); + return Collections.emptyList(); + } + URI queryWorkloadURI = new URI(controllerUrl + "/queryWorkloadConfigs/instance/" + instanceId + "?nodeType=" + + nodeType); + ClassicHttpRequest request = ClassicRequestBuilder.get(queryWorkloadURI) + .setVersion(HttpVersion.HTTP_1_1) + .setHeader(HttpHeaders.CONTENT_TYPE, HttpClient.JSON_CONTENT_TYPE) + .build(); + AtomicReference<List<QueryWorkloadConfig>> workloadConfigs = new AtomicReference<>(null); + RetryPolicy retryPolicy = RetryPolicies.exponentialBackoffRetryPolicy(3, 3000L, 1.2f); + retryPolicy.attempt(() -> { + try { + SimpleHttpResponse response = HttpClient.wrapAndThrowHttpException( + HTTP_CLIENT.sendRequest(request, HttpClient.DEFAULT_SOCKET_TIMEOUT_MS) + ); + if (response.getStatusCode() == HttpStatus.SC_OK) { + workloadConfigs.set(QueryWorkloadConfigUtils.getQueryWorkloadConfigs(response.getResponse())); + LOGGER.info("Successfully fetched query workload configs from controller: {}, Instance: {}", + controllerUrl, instanceId); + return true; + } else if (response.getStatusCode() == HttpStatus.SC_NOT_FOUND) { + LOGGER.info("No query workload configs found for controller: {}, Instance: {}", controllerUrl, instanceId); + workloadConfigs.set(Collections.emptyList()); + return true; + } else { + LOGGER.warn("Failed to fetch query workload configs from controller: {}, Instance: {}, Status: {}", + controllerUrl, instanceId, response.getStatusCode()); + return false; + } + } catch (Exception e) { + LOGGER.warn("Failed to fetch query workload configs from controller: {}, Instance: {}", + controllerUrl, instanceId, e); + return false; + } + }); + return workloadConfigs.get(); + } catch (Exception e) { + LOGGER.warn("Failed to fetch query workload configs from controller: {}, Instance: {}", + controllerUrl, instanceId, e); + return Collections.emptyList(); + } + } + + public static List<QueryWorkloadConfig> getQueryWorkloadConfigs(String queryWorkloadConfigsJson) { + Preconditions.checkNotNull(queryWorkloadConfigsJson, "Query workload configs JSON cannot be null"); + try { + return JsonUtils.stringToObject(queryWorkloadConfigsJson, new TypeReference<>() { }); + } catch (Exception e) { + String errorMessage = String.format("Failed to convert query workload configs: %s to list of QueryWorkloadConfig", + queryWorkloadConfigsJson); + throw new RuntimeException(errorMessage, e); + } + } + + /** + * Validates the given QueryWorkloadConfig and returns a list of validation error messages. + * + * @param config the QueryWorkloadConfig to validate + * @return a list of validation errors; empty if config is valid + */ + public static List<String> validateQueryWorkloadConfig(QueryWorkloadConfig config) { Review Comment: Do we need to consider a situation where controllers are in the midst of upgrade (i.e. some controllers have been upgraded but others have not) -- This is an automated message from the Apache Git Service. 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