sarvekshayr commented on code in PR #10673: URL: https://github.com/apache/ozone/pull/10673#discussion_r3549606448
########## hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/container/export/ContainerExportManager.java: ########## @@ -0,0 +1,499 @@ +/* + * 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.hadoop.hdds.scm.container.export; + +import java.io.BufferedWriter; +import java.io.File; +import java.io.IOException; +import java.nio.charset.StandardCharsets; +import java.nio.file.Files; +import java.nio.file.Path; +import java.nio.file.Paths; +import java.time.Instant; +import java.time.ZoneOffset; +import java.time.format.DateTimeFormatter; +import java.util.ArrayList; +import java.util.List; +import java.util.Map; +import java.util.UUID; +import java.util.concurrent.ConcurrentHashMap; +import java.util.concurrent.ExecutorService; +import java.util.concurrent.Executors; +import java.util.concurrent.Future; +import java.util.concurrent.TimeUnit; +import org.apache.commons.io.FileUtils; +import org.apache.hadoop.hdds.conf.OzoneConfiguration; +import org.apache.hadoop.hdds.protocol.proto.HddsProtos.LifeCycleState; +import org.apache.hadoop.hdds.scm.container.ContainerHealthState; +import org.apache.hadoop.hdds.scm.container.ContainerID; +import org.apache.hadoop.hdds.scm.container.ContainerManager; +import org.apache.hadoop.hdds.server.ServerUtils; +import org.apache.hadoop.hdds.utils.Archiver; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * Manages asynchronous container ID export jobs on SCM leader. + */ +public class ContainerExportManager { + + private static final Logger LOG = LoggerFactory.getLogger(ContainerExportManager.class); + + private static final DateTimeFormatter METADATA_TIMESTAMP_FORMAT = + DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss'Z'").withZone(ZoneOffset.UTC); + private static final DateTimeFormatter FILENAME_TIMESTAMP_FORMAT = + DateTimeFormatter.ofPattern("yyyyMMdd'T'HHmmss'Z'").withZone(ZoneOffset.UTC); + + private static final String EXPORT_SUBDIR = "exports"; + private static final int DEFAULT_SHARD_SIZE = 500_000; + private static final int DEFAULT_PAGE_SIZE = 100_000; + private static final int MAX_SHARD_SIZE = 5_000_000; + private static final int MAX_PAGE_SIZE = 1_000_000; + + private final Map<String, ExportJob> jobTracker = new ConcurrentHashMap<>(); + private final ExecutorService workerPool; + private final Map<String, Future<?>> runningTasks = new ConcurrentHashMap<>(); + private final ContainerManager containerManager; + private final String exportDirectory; + private final int defaultShardSize; + private final int defaultPageSize; + private final Object submitLock = new Object(); + + public ContainerExportManager(ContainerManager containerManager, + OzoneConfiguration conf) { + this(containerManager, resolveExportDirectory(conf), + DEFAULT_SHARD_SIZE, DEFAULT_PAGE_SIZE); + } + + ContainerExportManager(ContainerManager containerManager, + String exportDirectory, int defaultShardSize, int defaultPageSize) { + this.containerManager = containerManager; + this.exportDirectory = exportDirectory; + this.defaultShardSize = defaultShardSize; + this.defaultPageSize = defaultPageSize; + this.workerPool = Executors.newSingleThreadExecutor(r -> { + Thread t = new Thread(r, "ContainerExportWorker"); Review Comment: Added check to run only on SCM leader. -- 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: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
