| /* |
| * 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; |
| |
| import java.io.IOException; |
| import java.util.List; |
| import java.util.stream.Collectors; |
| |
| import org.apache.hadoop.hdds.cli.GenericParentCommand; |
| import org.apache.hadoop.hdds.cli.HddsVersionProvider; |
| import org.apache.hadoop.hdds.protocol.DatanodeDetails; |
| import org.apache.hadoop.hdds.scm.cli.ScmSubcommand; |
| import org.apache.hadoop.hdds.scm.client.ScmClient; |
| import org.apache.hadoop.hdds.scm.container.ContainerInfo; |
| import org.apache.hadoop.hdds.scm.container.ContainerReplicaInfo; |
| import org.apache.hadoop.hdds.scm.container.common.helpers |
| .ContainerWithPipeline; |
| |
| import com.google.common.base.Preconditions; |
| import org.apache.hadoop.hdds.scm.pipeline.Pipeline; |
| import org.apache.hadoop.hdds.server.JsonUtils; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| import picocli.CommandLine; |
| import picocli.CommandLine.Command; |
| import picocli.CommandLine.Model.CommandSpec; |
| import picocli.CommandLine.Parameters; |
| import picocli.CommandLine.Spec; |
| |
| /** |
| * This is the handler that process container info command. |
| */ |
| @Command( |
| name = "info", |
| description = "Show information about a specific container", |
| mixinStandardHelpOptions = true, |
| versionProvider = HddsVersionProvider.class) |
| public class InfoSubcommand extends ScmSubcommand { |
| |
| private static final Logger LOG = |
| LoggerFactory.getLogger(InfoSubcommand.class); |
| |
| @Spec |
| private CommandSpec spec; |
| |
| @CommandLine.Option(names = { "--json" }, |
| defaultValue = "false", |
| description = "Format output as JSON") |
| private boolean json; |
| |
| @Parameters(description = "Decimal id of the container.") |
| private long containerID; |
| |
| @Override |
| public void execute(ScmClient scmClient) throws IOException { |
| final ContainerWithPipeline container = scmClient. |
| getContainerWithPipeline(containerID); |
| Preconditions.checkNotNull(container, "Container cannot be null"); |
| List<ContainerReplicaInfo> replicas = null; |
| try { |
| replicas = scmClient.getContainerReplicas(containerID); |
| } catch (IOException e) { |
| LOG.error("Unable to retrieve the replica details", e); |
| } |
| |
| if (json) { |
| ContainerWithPipelineAndReplicas wrapper = |
| new ContainerWithPipelineAndReplicas(container.getContainerInfo(), |
| container.getPipeline(), replicas); |
| LOG.info(JsonUtils.toJsonStringWithDefaultPrettyPrinter(wrapper)); |
| } else { |
| // Print container report info. |
| LOG.info("Container id: {}", containerID); |
| boolean verbose = spec != null |
| && spec.root().userObject() instanceof GenericParentCommand |
| && ((GenericParentCommand) spec.root().userObject()).isVerbose(); |
| if (verbose) { |
| LOG.info("Pipeline Info: {}", container.getPipeline()); |
| } else { |
| LOG.info("Pipeline id: {}", container.getPipeline().getId().getId()); |
| } |
| LOG.info("Container State: {}", container.getContainerInfo().getState()); |
| |
| // Print pipeline of an existing container. |
| String machinesStr = container.getPipeline().getNodes().stream().map( |
| InfoSubcommand::buildDatanodeDetails) |
| .collect(Collectors.joining(",\n")); |
| LOG.info("Datanodes: [{}]", machinesStr); |
| |
| // Print the replica details if available |
| if (replicas != null) { |
| String replicaStr = replicas.stream().map( |
| InfoSubcommand::buildReplicaDetails) |
| .collect(Collectors.joining(",\n")); |
| LOG.info("Replicas: [{}]", replicaStr); |
| } |
| } |
| } |
| |
| private static String buildDatanodeDetails(DatanodeDetails details) { |
| return details.getUuidString() + "/" + details.getHostName(); |
| } |
| |
| private static String buildReplicaDetails(ContainerReplicaInfo replica) { |
| StringBuilder sb = new StringBuilder(); |
| sb.append("State: " + replica.getState() + ";"); |
| if (replica.getReplicaIndex() != -1) { |
| sb.append(" ReplicaIndex: " + replica.getReplicaIndex() + ";"); |
| } |
| sb.append(" Origin: " + replica.getPlaceOfBirth().toString() + ";"); |
| sb.append(" Location: " |
| + buildDatanodeDetails(replica.getDatanodeDetails())); |
| return sb.toString(); |
| } |
| |
| private static class ContainerWithPipelineAndReplicas { |
| |
| private ContainerInfo containerInfo; |
| private Pipeline pipeline; |
| private List<ContainerReplicaInfo> replicas; |
| |
| ContainerWithPipelineAndReplicas(ContainerInfo container, Pipeline pipeline, |
| List<ContainerReplicaInfo> replicas) { |
| this.containerInfo = container; |
| this.pipeline = pipeline; |
| this.replicas = replicas; |
| } |
| |
| public ContainerInfo getContainerInfo() { |
| return containerInfo; |
| } |
| |
| public Pipeline getPipeline() { |
| return pipeline; |
| } |
| |
| public List<ContainerReplicaInfo> getReplicas() { |
| return replicas; |
| } |
| } |
| } |