ChenSammi commented on code in PR #5539: URL: https://github.com/apache/ozone/pull/5539#discussion_r1386708732
########## hadoop-hdds/tools/src/main/java/org/apache/hadoop/hdds/scm/cli/container/upgrade/UpgradeChecker.java: ########## @@ -0,0 +1,143 @@ +/* + * 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 + * <p> + * http://www.apache.org/licenses/LICENSE-2.0 + * <p> + * 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.cli.container.upgrade; + +import org.apache.commons.io.FileUtils; +import org.apache.commons.io.IOUtils; +import org.apache.commons.lang3.tuple.Pair; +import org.apache.hadoop.hdds.conf.OzoneConfiguration; +import org.apache.hadoop.hdds.protocol.DatanodeDetails; +import org.apache.hadoop.hdds.scm.server.SCMStorageConfig; +import org.apache.hadoop.hdds.upgrade.HDDSLayoutVersionManager; +import org.apache.hadoop.ozone.container.common.utils.StorageVolumeUtil; +import org.apache.hadoop.ozone.container.common.volume.HddsVolume; +import org.apache.hadoop.ozone.container.common.volume.MutableVolumeSet; +import org.apache.hadoop.ozone.container.common.volume.StorageVolume; + +import java.io.File; +import java.io.IOException; +import java.nio.charset.StandardCharsets; +import java.util.ArrayList; +import java.util.List; +import java.util.Map; +import java.util.concurrent.ConcurrentHashMap; +import java.util.concurrent.TimeUnit; + +import static org.apache.hadoop.ozone.OzoneConsts.CONTAINER_DB_NAME; + +/** + * This is the handler that process container upgrade checker. + */ +public class UpgradeChecker { + + /* + * Verify that the datanode is in the shutdown state. + */ + public Pair<Boolean, String> checkDatanodeNotStarted() { + String command = + "ps aux | grep org.apache.hadoop.ozone.HddsDatanodeService " + + "| grep -v grep"; + try { + Process exec = Runtime.getRuntime().exec(command); + exec.waitFor(10, TimeUnit.SECONDS); + if (exec.exitValue() != 0 && exec.exitValue() != 1) { + + return Pair.of(false, + String.format("Return code of the command %s was %d", command, + exec.exitValue())); + } else { + final boolean dnStarted = + IOUtils.toString(exec.getInputStream(), StandardCharsets.UTF_8) + .contains("proc_datanode"); + if (dnStarted) { + return Pair.of(false, + "This command needs to be executed with datanode turned off."); + } + } + } catch (IOException | InterruptedException e) { + + return Pair.of(false, + String.format("Run the command %s has error", command)); + + } + return Pair.of(true, ""); + } + + public Pair<Integer, Integer> getLayoutVersion(OzoneConfiguration conf) + throws IOException { + SCMStorageConfig scmStorageConfig = new SCMStorageConfig(conf); + HDDSLayoutVersionManager scmLayoutVersionManager = + new HDDSLayoutVersionManager( + scmStorageConfig.getLayoutVersion()); + final int metadataLayoutVersion = + scmLayoutVersionManager.getMetadataLayoutVersion(); + final int softwareLayoutVersion = + scmLayoutVersionManager.getSoftwareLayoutVersion(); + + return Pair.of(softwareLayoutVersion, metadataLayoutVersion); + } + + public List<HddsVolume> getAllVolume(DatanodeDetails detail, + OzoneConfiguration configuration) throws IOException { + final MutableVolumeSet dataVolumeSet = UpgradeUtils + .getHddsVolumes(configuration, StorageVolume.VolumeType.DATA_VOLUME, + detail.getUuidString()); + return StorageVolumeUtil.getHddsVolumesList(dataVolumeSet.getVolumesList()); + } + + public List<File> getVolumeDBPath(List<HddsVolume> hddsVolumes) { + List<File> dbPaths = new ArrayList<>(); + + for (HddsVolume storageVolume : hddsVolumes) { + File clusterIdDir = + new File(storageVolume.getStorageDir(), storageVolume.getClusterID()); + File storageIdDir = + new File(clusterIdDir, storageVolume.getStorageID()); + final File containerDBPath = + new File(storageIdDir, CONTAINER_DB_NAME); + + if (containerDBPath.exists() && containerDBPath.isDirectory()) { + dbPaths.add(containerDBPath); + } + } + + return dbPaths; + } + + public Map<File, Exception> dbBackup(List<File> dbPaths) { + Map<File, Exception> failDBDir = new ConcurrentHashMap<>(); + for (File dbPath : dbPaths) { + try { + final File backup = + new File(dbPath.getParentFile(), dbPath.getName() + ".bak"); Review Comment: Please add a random number to this backup file name, to avoid that there is already an directory with same name there. -- 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]
