nsivabalan commented on a change in pull request #4693: URL: https://github.com/apache/hudi/pull/4693#discussion_r835778402
########## File path: hudi-utilities/src/main/java/org/apache/hudi/utilities/HoodieIndexer.java ########## @@ -0,0 +1,276 @@ +/* + * 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.hudi.utilities; + +import org.apache.hudi.avro.model.HoodieIndexCommitMetadata; +import org.apache.hudi.avro.model.HoodieIndexPartitionInfo; +import org.apache.hudi.client.SparkRDDWriteClient; +import org.apache.hudi.common.config.TypedProperties; +import org.apache.hudi.common.model.HoodieRecordPayload; +import org.apache.hudi.common.table.HoodieTableMetaClient; +import org.apache.hudi.common.table.timeline.HoodieInstant; +import org.apache.hudi.common.util.Option; +import org.apache.hudi.common.util.StringUtils; +import org.apache.hudi.exception.HoodieIndexException; +import org.apache.hudi.metadata.MetadataPartitionType; + +import com.beust.jcommander.JCommander; +import com.beust.jcommander.Parameter; +import org.apache.hadoop.fs.Path; +import org.apache.log4j.LogManager; +import org.apache.log4j.Logger; +import org.apache.spark.api.java.JavaSparkContext; +import org.jetbrains.annotations.TestOnly; + +import java.io.Serializable; +import java.util.ArrayList; +import java.util.Arrays; +import java.util.List; +import java.util.Locale; +import java.util.stream.Collectors; + +import static org.apache.hudi.common.table.timeline.HoodieInstant.State.INFLIGHT; +import static org.apache.hudi.utilities.UtilHelpers.EXECUTE; +import static org.apache.hudi.utilities.UtilHelpers.SCHEDULE; +import static org.apache.hudi.utilities.UtilHelpers.SCHEDULE_AND_EXECUTE; + +/** + * A tool to run metadata indexing asynchronously. + * <p> + * Example command (assuming indexer.properties contains related index configs, see {@link org.apache.hudi.common.config.HoodieMetadataConfig} for configs): + * <p> + * spark-submit \ + * --class org.apache.hudi.utilities.HoodieIndexer \ + * /path/to/hudi/packaging/hudi-utilities-bundle/target/hudi-utilities-bundle_2.11-0.11.0-SNAPSHOT.jar \ + * --props /path/to/indexer.properties \ + * --mode scheduleAndExecute \ + * --base-path /tmp/hudi_trips_cow \ + * --table-name hudi_trips_cow \ + * --index-types COLUMN_STATS \ + * --parallelism 1 \ + * --spark-memory 1g + * <p> + * A sample indexer.properties file: + * <p> + * hoodie.metadata.index.async=true + * hoodie.metadata.index.column.stats.enable=true + * hoodie.metadata.index.check.timeout.seconds=60 + * hoodie.write.concurrency.mode=optimistic_concurrency_control + * hoodie.write.lock.provider=org.apache.hudi.client.transaction.lock.ZookeeperBasedLockProvider + */ +public class HoodieIndexer { + + private static final Logger LOG = LogManager.getLogger(HoodieIndexer.class); + private static final String DROP_INDEX = "dropindex"; + + private final HoodieIndexer.Config cfg; + private TypedProperties props; + private final JavaSparkContext jsc; + private final HoodieTableMetaClient metaClient; + + public HoodieIndexer(JavaSparkContext jsc, HoodieIndexer.Config cfg) { + this.cfg = cfg; + this.jsc = jsc; + this.props = StringUtils.isNullOrEmpty(cfg.propsFilePath) + ? UtilHelpers.buildProperties(cfg.configs) + : readConfigFromFileSystem(jsc, cfg); + this.metaClient = UtilHelpers.createMetaClient(jsc, cfg.basePath, true); + } + + private TypedProperties readConfigFromFileSystem(JavaSparkContext jsc, HoodieIndexer.Config cfg) { + return UtilHelpers.readConfig(jsc.hadoopConfiguration(), new Path(cfg.propsFilePath), cfg.configs) + .getProps(true); + } + + public static class Config implements Serializable { + @Parameter(names = {"--base-path", "-sp"}, description = "Base path for the table", required = true) + public String basePath = null; + @Parameter(names = {"--table-name", "-tn"}, description = "Table name", required = true) + public String tableName = null; + @Parameter(names = {"--instant-time", "-it"}, description = "Indexing Instant time") + public String indexInstantTime = null; + @Parameter(names = {"--parallelism", "-pl"}, description = "Parallelism for hoodie insert", required = true) + public int parallelism = 1; + @Parameter(names = {"--spark-master", "-ms"}, description = "Spark master") + public String sparkMaster = null; + @Parameter(names = {"--spark-memory", "-sm"}, description = "spark memory to use", required = true) + public String sparkMemory = null; + @Parameter(names = {"--retry", "-rt"}, description = "number of retries") + public int retry = 0; + @Parameter(names = {"--index-types", "-ixt"}, description = "Comma-separated index types to be built, e.g. BLOOM_FILTERS,COLUMN_STATS", required = true) + public String indexTypes = null; + @Parameter(names = {"--mode", "-m"}, description = "Set job mode: Set \"schedule\" to generate an indexing plan; " + + "Set \"execute\" to execute the indexing plan at the given instant, which means --instant-time is required here; " + + "Set \"scheduleandExecute\" to generate an indexing plan first and execute that plan immediately;" + + "Set \"dropindex\" to drop the index types specified in --index-types;") + public String runningMode = null; + @Parameter(names = {"--help", "-h"}, help = true) + public Boolean help = false; + + @Parameter(names = {"--props"}, description = "path to properties file on localfs or dfs, with configurations for hoodie client for indexing") + public String propsFilePath = null; + + @Parameter(names = {"--hoodie-conf"}, description = "Any configuration that can be set in the properties file " + + "(using the CLI parameter \"--props\") can also be passed command line using this parameter. This can be repeated", + splitter = IdentitySplitter.class) + public List<String> configs = new ArrayList<>(); + } + + public static void main(String[] args) { + final HoodieIndexer.Config cfg = new HoodieIndexer.Config(); + JCommander cmd = new JCommander(cfg, null, args); + + if (cfg.help || args.length == 0) { + cmd.usage(); + System.exit(1); + } + + final JavaSparkContext jsc = UtilHelpers.buildSparkContext("indexing-" + cfg.tableName, cfg.sparkMaster, cfg.sparkMemory); Review comment: lets also think through what is a user wants to initialize the entire MDT via hoodieIndexer. i.e. they are not bringing up any regular writers. But first bring up HoodieIndexer and wait for everything to be built out. and then start other regular writers. from what I see, its taken care of. but do verify it once. -- 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. 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