robertzych commented on code in PR #10463: URL: https://github.com/apache/pinot/pull/10463#discussion_r1161031933
########## pinot-plugins/pinot-minion-tasks/pinot-minion-builtin-tasks/src/main/java/org/apache/pinot/plugin/minion/tasks/upsertcompaction/UpsertCompactionTaskGenerator.java: ########## @@ -0,0 +1,193 @@ +/** + * 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.plugin.minion.tasks.upsertcompaction; + +import com.google.common.annotations.VisibleForTesting; +import com.google.common.base.Preconditions; +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.metadata.segment.SegmentZKMetadata; +import org.apache.pinot.common.utils.SegmentUtils; +import org.apache.pinot.controller.helix.core.minion.generator.BaseTaskGenerator; +import org.apache.pinot.core.common.MinionConstants; +import org.apache.pinot.core.common.MinionConstants.UpsertCompactionTask; +import org.apache.pinot.core.minion.PinotTaskConfig; +import org.apache.pinot.spi.annotations.minion.TaskGenerator; +import org.apache.pinot.spi.config.table.IndexingConfig; +import org.apache.pinot.spi.config.table.TableConfig; +import org.apache.pinot.spi.config.table.TableTaskConfig; +import org.apache.pinot.spi.config.table.TableType; +import org.apache.pinot.spi.utils.CommonConstants; +import org.apache.pinot.spi.utils.TimeUtils; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + + +@TaskGenerator +public class UpsertCompactionTaskGenerator extends BaseTaskGenerator { + private static final Logger LOGGER = LoggerFactory.getLogger(UpsertCompactionTaskGenerator.class); + @Override + public String getTaskType() { + return MinionConstants.UpsertCompactionTask.TASK_TYPE; + } + + @Override + public List<PinotTaskConfig> generateTasks(List<TableConfig> tableConfigs) { + String taskType = MinionConstants.UpsertCompactionTask.TASK_TYPE; + List<PinotTaskConfig> pinotTaskConfigs = new ArrayList<>(); + for (TableConfig tableConfig: tableConfigs) { + if (!validate(tableConfig)) { + continue; + } + + String tableNameWithType = tableConfig.getTableName(); + LOGGER.info("Start generating task configs for table: {} for task: {}", + tableNameWithType, taskType); + + Map<String, String> taskConfigs = tableConfig.getTaskConfig().getConfigsForTaskType(taskType); + Map<String, String> compactionConfigs = getCompactionConfigs(taskConfigs); + String bufferPeriod = compactionConfigs.get(UpsertCompactionTask.BUFFER_TIME_PERIOD_KEY); + long bufferMs = TimeUtils.convertPeriodToMillis(bufferPeriod); + List<SegmentZKMetadata> completedSegments = new ArrayList<>(); + List<SegmentZKMetadata> allSegments = _clusterInfoAccessor.getSegmentsZKMetadata(tableNameWithType); + for (SegmentZKMetadata segment : allSegments) { + CommonConstants.Segment.Realtime.Status status = segment.getStatus(); + // only compact the completed segments that are older than the bufferTimePeriod + if (status.isCompleted() && segment.getEndTimeMs() <= (System.currentTimeMillis() - bufferMs)) { + completedSegments.add(segment); + } + } + if (completedSegments.isEmpty()) { + LOGGER.info("No segments were selected for compaction for table: {}", tableNameWithType); + continue; + } + + // map each completedSegment to its partition + Map<Integer, List<String>> partitionToSegmentNames = new HashMap<>(); + for (SegmentZKMetadata completedSegment : completedSegments) { + String segmentName = completedSegment.getSegmentName(); + Integer partitionId = SegmentUtils.getRealtimeSegmentPartitionId( + segmentName, tableNameWithType, completedSegment); + + Preconditions.checkState(partitionId != null, + "Unable to find partitionId for completedSegment"); + + partitionToSegmentNames.computeIfAbsent(partitionId, k -> new ArrayList<>()).add(segmentName); + } + int numTaskConfigsForTable = 0; + for (Map.Entry<Integer, List<String>> entry : partitionToSegmentNames.entrySet()) { + List<String> completedSegmentNames = entry.getValue(); + PinotTaskConfig pinotTaskConfig = + getPinotTaskConfig(tableNameWithType, compactionConfigs, completedSegmentNames); + pinotTaskConfigs.add(pinotTaskConfig); + numTaskConfigsForTable++; + } + LOGGER.info("Finished generating {} tasks configs for table: {} " + "for task: {}", + numTaskConfigsForTable, tableNameWithType, taskType); + } + return pinotTaskConfigs; + } + + private static PinotTaskConfig getPinotTaskConfig(String tableNameWithType, Map<String, String> compactionConfigs, + List<String> completedSegmentNames) { + Map<String, String> configs = new HashMap<>(); + configs.put(MinionConstants.TABLE_NAME_KEY, tableNameWithType); + configs.put(MinionConstants.SEGMENT_NAME_KEY, + StringUtils.join(completedSegmentNames, MinionConstants.SEGMENT_NAME_SEPARATOR)); + // TODO: use default values if the keys below aren't supplied + configs.put(UpsertCompactionTask.BUCKET_TIME_PERIOD_KEY, + compactionConfigs.get(UpsertCompactionTask.BUCKET_TIME_PERIOD_KEY)); + configs.put(UpsertCompactionTask.MAX_NUM_RECORDS_PER_SEGMENT_KEY, + compactionConfigs.get(UpsertCompactionTask.MAX_NUM_RECORDS_PER_SEGMENT_KEY)); + configs.put(UpsertCompactionTask.INVALID_RECORDS_THRESHOLD, + compactionConfigs.get(UpsertCompactionTask.INVALID_RECORDS_THRESHOLD)); + PinotTaskConfig pinotTaskConfig = new PinotTaskConfig(UpsertCompactionTask.TASK_TYPE, configs); + return pinotTaskConfig; + } + + private static final String[] VALID_CONFIG_KEYS = { + UpsertCompactionTask.BUCKET_TIME_PERIOD_KEY, + UpsertCompactionTask.BUFFER_TIME_PERIOD_KEY, + UpsertCompactionTask.MAX_NUM_RECORDS_PER_SEGMENT_KEY, + UpsertCompactionTask.INVALID_RECORDS_THRESHOLD, + }; + + private Map<String, String> getCompactionConfigs(Map<String, String> taskConfig) { + Map<String, String> compactionConfigs = new HashMap<>(); + + for (Map.Entry<String, String> entry : taskConfig.entrySet()) { Review Comment: As `subset` requires a common prefix it doesn't appear to apply in this case. -- This is an automated message from the Apache Git Service. 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