9aman commented on code in PR #15008: URL: https://github.com/apache/pinot/pull/15008#discussion_r1955634725
########## pinot-controller/src/main/java/org/apache/pinot/controller/validation/DiskUtilizationChecker.java: ########## @@ -0,0 +1,134 @@ +/** + * 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.controller.validation; + +import com.google.common.collect.BiMap; +import java.util.ArrayList; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import org.apache.commons.lang3.StringUtils; +import org.apache.pinot.common.restlet.resources.DiskUsageInfo; +import org.apache.pinot.controller.ControllerConf; +import org.apache.pinot.controller.helix.core.PinotHelixResourceManager; +import org.apache.pinot.controller.util.CompletionServiceHelper; +import org.apache.pinot.spi.config.table.TableConfig; +import org.apache.pinot.spi.config.table.TableType; +import org.apache.pinot.spi.utils.JsonUtils; +import org.apache.pinot.spi.utils.builder.TableNameBuilder; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + + +public class DiskUtilizationChecker { + private static final Logger LOGGER = LoggerFactory.getLogger(DiskUtilizationChecker.class); + private final int _resourceUtilizationCheckTimeoutMs; + private final long _resourceUtilizationCheckerFrequency; + private final double _diskUtilizationThreshold; + private final String _diskUtilizationPath; + private static final String DISK_UTILIZATION_API_PATH = "/instance/diskUtilization"; + + private final PinotHelixResourceManager _helixResourceManager; + + public DiskUtilizationChecker(PinotHelixResourceManager helixResourceManager, ControllerConf controllerConf) { + _helixResourceManager = helixResourceManager; + _diskUtilizationPath = controllerConf.getDiskUtilizationPath(); + _diskUtilizationThreshold = controllerConf.getDiskUtilizationThreshold(); + _resourceUtilizationCheckTimeoutMs = controllerConf.getDiskUtilizationCheckTimeoutMs(); + _resourceUtilizationCheckerFrequency = controllerConf.getResourceUtilizationCheckerFrequency(); + } + + public static String getDiskUtilizationApiPath() { + return DISK_UTILIZATION_API_PATH; + } + + /** + * Check if disk utilization for the requested table is within the configured limits. + */ + public boolean isDiskUtilizationWithinLimits(String tableNameWithType) { + if (StringUtils.isEmpty(tableNameWithType)) { + throw new IllegalArgumentException("Table name found to be null or empty while computing disk utilization."); + } + TableConfig tableConfig = _helixResourceManager.getTableConfig(tableNameWithType); + if (tableConfig == null) { + return true; // table does not exist + } + List<String> instances; + if (TableNameBuilder.isOfflineTableResource(tableNameWithType)) { + instances = _helixResourceManager.getServerInstancesForTable(tableNameWithType, TableType.OFFLINE); + } else { + instances = _helixResourceManager.getServerInstancesForTable(tableNameWithType, TableType.REALTIME); + } + return isDiskUtilizationWithinLimits(instances); + } + + private boolean isDiskUtilizationWithinLimits(List<String> instances) { + for (String instance : instances) { + DiskUsageInfo diskUsageInfo = ResourceUtilizationInfo.getDiskUsageInfo(instance); + if (diskUsageInfo == null) { + LOGGER.warn("Disk utilization info for server: {} is null", instance); + continue; + } + // Ignore if the disk utilization info is stale. The info is considered stale if it is older than the + // ResourceUtilizationChecker tasks frequency. + if (diskUsageInfo.getLastUpdatedTimeInEpochMs() Review Comment: What would happen in the scenario when the controller is not able to fetch the disk info and the ingestion remains paused ? Do we have to disable this periodic task and unpause tables ? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@pinot.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@pinot.apache.org For additional commands, e-mail: commits-h...@pinot.apache.org
