| /* |
| * 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.recon.fsck; |
| |
| import org.apache.hadoop.hdds.protocol.DatanodeDetails; |
| import org.apache.hadoop.hdds.protocol.proto.HddsProtos; |
| import org.apache.hadoop.hdds.protocol.proto.StorageContainerDatanodeProtocolProtos.ContainerReplicaProto; |
| import org.apache.hadoop.hdds.scm.ContainerPlacementStatus; |
| import org.apache.hadoop.hdds.scm.PlacementPolicy; |
| import org.apache.hadoop.hdds.scm.container.ContainerInfo; |
| import org.apache.hadoop.hdds.scm.container.ContainerReplica; |
| import java.util.List; |
| import java.util.Set; |
| import java.util.stream.Collectors; |
| |
| /** |
| * Class which encapsulates all the information required to determine if a |
| * container and its replicas are correctly replicated and placed. |
| */ |
| |
| public class ContainerHealthStatus { |
| |
| private ContainerInfo container; |
| private int replicaDelta; |
| private Set<ContainerReplica> replicas; |
| private ContainerPlacementStatus placementStatus; |
| |
| ContainerHealthStatus(ContainerInfo container, |
| Set<ContainerReplica> replicas, PlacementPolicy placementPolicy) { |
| this.container = container; |
| int repFactor = container.getReplicationFactor().getNumber(); |
| this.replicas = replicas |
| .stream() |
| .filter(r -> !r.getState() |
| .equals((ContainerReplicaProto.State.UNHEALTHY))) |
| .collect(Collectors.toSet()); |
| this.replicaDelta = repFactor - this.replicas.size(); |
| this.placementStatus = getPlacementStatus(placementPolicy, repFactor); |
| } |
| |
| public long getContainerID() { |
| return this.container.getContainerID(); |
| } |
| |
| public ContainerInfo getContainer() { |
| return this.container; |
| } |
| |
| public int getReplicationFactor() { |
| return container.getReplicationFactor().getNumber(); |
| } |
| |
| public boolean isHealthy() { |
| return replicaDelta == 0 && !isMisReplicated(); |
| } |
| |
| public boolean isDeleted() { |
| return container.getState() == HddsProtos.LifeCycleState.DELETED || |
| container.getState() == HddsProtos.LifeCycleState.DELETING; |
| } |
| |
| public boolean isOverReplicated() { |
| return replicaDelta < 0; |
| } |
| |
| public boolean isUnderReplicated() { |
| return !isMissing() && replicaDelta > 0; |
| } |
| |
| public int replicaDelta() { |
| return replicaDelta; |
| } |
| |
| public int getReplicaCount() { |
| return replicas.size(); |
| } |
| |
| public boolean isMisReplicated() { |
| return !isMissing() && !placementStatus.isPolicySatisfied(); |
| } |
| |
| public int misReplicatedDelta() { |
| return placementStatus.misReplicationCount(); |
| } |
| |
| public int expectedPlacementCount() { |
| return placementStatus.expectedPlacementCount(); |
| } |
| |
| public int actualPlacementCount() { |
| return placementStatus.actualPlacementCount(); |
| } |
| |
| public String misReplicatedReason() { |
| return placementStatus.misReplicatedReason(); |
| } |
| |
| public boolean isMissing() { |
| return replicas.size() == 0; |
| } |
| |
| private ContainerPlacementStatus getPlacementStatus( |
| PlacementPolicy policy, int repFactor) { |
| List<DatanodeDetails> dns = replicas.stream() |
| .map(ContainerReplica::getDatanodeDetails) |
| .collect(Collectors.toList()); |
| return policy.validateContainerPlacement(dns, repFactor); |
| } |
| } |