dombizita commented on a change in pull request #2987: URL: https://github.com/apache/ozone/pull/2987#discussion_r786569068
########## File path: hadoop-ozone/tools/src/main/java/org/apache/hadoop/ozone/debug/ReadReplicas.java ########## @@ -0,0 +1,216 @@ +/** + * 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.ozone.debug; + +import com.google.gson.*; +import org.apache.hadoop.hdds.cli.SubcommandWithParent; +import org.apache.hadoop.hdds.client.BlockID; +import org.apache.hadoop.hdds.conf.OzoneConfiguration; +import org.apache.hadoop.hdds.protocol.DatanodeDetails; +import org.apache.hadoop.hdds.scm.OzoneClientConfig; +import org.apache.hadoop.ozone.client.OzoneClient; +import org.apache.hadoop.ozone.client.OzoneClientException; +import org.apache.hadoop.ozone.client.OzoneKeyDetails; +import org.apache.hadoop.ozone.client.io.OzoneInputStream; +import org.apache.hadoop.ozone.client.protocol.ClientProtocol; +import org.apache.hadoop.ozone.client.rpc.RpcClient; +import org.apache.hadoop.ozone.common.OzoneChecksumException; +import org.apache.hadoop.ozone.om.helpers.OmKeyLocationInfo; +import org.apache.hadoop.ozone.shell.OzoneAddress; +import org.apache.hadoop.ozone.shell.keys.KeyHandler; +import org.apache.ratis.thirdparty.io.grpc.StatusRuntimeException; +import org.jetbrains.annotations.NotNull; +import org.kohsuke.MetaInfServices; +import picocli.CommandLine; + +import java.io.File; +import java.io.IOException; +import java.nio.charset.StandardCharsets; +import java.nio.file.Files; +import java.nio.file.StandardCopyOption; +import java.text.SimpleDateFormat; +import java.util.Date; +import java.util.Map; + +/** + * Class that for a given key downloads every blocks every replica and creates + * a manifest file with information about the replicas. + */ [email protected](name = "read-replicas", + description = "Reads a given keys every blocks every replica.") +@MetaInfServices(SubcommandWithParent.class) +public class ReadReplicas extends KeyHandler implements SubcommandWithParent { + + private ClientProtocol clientProtocol; + private ClientProtocol clientProtocolWithoutChecksum; + + @Override + public Class<?> getParentType() { + return OzoneDebug.class; + } + + @Override + protected void execute(OzoneClient client, OzoneAddress address) + throws IOException, OzoneClientException { + + clientProtocol = client.getObjectStore().getClientProxy(); + + OzoneConfiguration configuration = new OzoneConfiguration(); + OzoneClientConfig clientConfig = configuration + .getObject(OzoneClientConfig.class); + clientConfig.setChecksumVerify(false); + configuration.setFromObject(clientConfig); + clientProtocolWithoutChecksum = new RpcClient(configuration, null); + + address.ensureKeyAddress(); + String volumeName = address.getVolumeName(); + String bucketName = address.getBucketName(); + String keyName = address.getKeyName(); + + OzoneKeyDetails keyInfoDetails + = clientProtocol.getKeyDetails(volumeName, bucketName, keyName); + + Map<OmKeyLocationInfo, Map<DatanodeDetails, OzoneInputStream>> replicas + = clientProtocol.getKeysEveryReplicas(volumeName, bucketName, keyName); + + Map<OmKeyLocationInfo, Map<DatanodeDetails, OzoneInputStream>> + replicasWithoutChecksum = clientProtocolWithoutChecksum + .getKeysEveryReplicas(volumeName, bucketName, keyName); + + String directoryName = createDirectory(volumeName, bucketName, keyName); + + JsonObject result = new JsonObject(); + result.addProperty("filename", + volumeName + "/" + bucketName + "/" + keyName); + result.addProperty("datasize", keyInfoDetails.getDataSize()); + + JsonArray blocks = new JsonArray(); + downloadReplicasAndCreateManifest(keyName, replicas, + replicasWithoutChecksum, directoryName, blocks); + result.add("blocks", blocks); + + Gson gson = new GsonBuilder().setPrettyPrinting().create(); + String prettyJson = gson.toJson(result); + + String manifestFileName = keyName + "_manifest"; + System.out.println("Writing manifest file : " + manifestFileName); + File manifestFile + = new File("/opt/hadoop/" + directoryName + "/" + manifestFileName); + Files.write(manifestFile.toPath(), + prettyJson.getBytes(StandardCharsets.UTF_8)); + } + + private void downloadReplicasAndCreateManifest( + String keyName, + Map<OmKeyLocationInfo, Map<DatanodeDetails, OzoneInputStream>> replicas, + Map<OmKeyLocationInfo, Map<DatanodeDetails, OzoneInputStream>> + replicasWithoutChecksum, + String directoryName, JsonArray blocks) throws IOException { + int blockIndex = 0; + + for (Map.Entry<OmKeyLocationInfo, Map<DatanodeDetails, OzoneInputStream>> + block : replicas.entrySet()) { + JsonObject blockJson = new JsonObject(); + JsonArray replicasJson = new JsonArray(); + + blockIndex += 1; + blockJson.addProperty("block index", blockIndex); + blockJson.addProperty("container id", block.getKey().getContainerID()); + blockJson.addProperty("local id", block.getKey().getLocalID()); Review comment: That seems a reasonable, as it will be easier to work with JSON file. Changed it. -- 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]
