| /* |
| * 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.geode.internal.cache.backup; |
| |
| import java.util.Collections; |
| import java.util.Map; |
| import java.util.Properties; |
| import java.util.Set; |
| |
| import org.apache.geode.admin.internal.AdminDistributedSystemImpl; |
| import org.apache.geode.annotations.VisibleForTesting; |
| import org.apache.geode.cache.persistence.PersistentID; |
| import org.apache.geode.distributed.DistributedMember; |
| import org.apache.geode.distributed.internal.DistributionManager; |
| import org.apache.geode.distributed.internal.membership.InternalDistributedMember; |
| import org.apache.geode.internal.cache.InternalCache; |
| import org.apache.geode.management.BackupStatus; |
| import org.apache.geode.management.ManagementException; |
| import org.apache.geode.management.internal.BackupStatusImpl; |
| |
| /** |
| * Performs backup of all members. |
| */ |
| public class BackupOperation { |
| |
| private final FlushToDiskFactory flushToDiskFactory; |
| private final PrepareBackupFactory prepareBackupFactory; |
| private final AbortBackupFactory abortBackupFactory; |
| private final FinishBackupFactory finishBackupFactory; |
| private final DistributionManager dm; |
| private final InternalCache cache; |
| private final BackupLockService backupLockService; |
| private final MissingPersistentMembersProvider missingPersistentMembersProvider; |
| |
| public BackupOperation(DistributionManager dm, InternalCache cache) { |
| this(new FlushToDiskFactory(), new PrepareBackupFactory(), new AbortBackupFactory(), |
| new FinishBackupFactory(), dm, cache, new BackupLockService(), |
| new DefaultMissingPersistentMembersProvider()); |
| } |
| |
| @VisibleForTesting |
| BackupOperation(FlushToDiskFactory flushToDiskFactory, PrepareBackupFactory prepareBackupFactory, |
| AbortBackupFactory abortBackupFactory, FinishBackupFactory finishBackupFactory, |
| DistributionManager dm, InternalCache cache, BackupLockService backupLockService, |
| MissingPersistentMembersProvider missingPersistentMembersProvider) { |
| this.flushToDiskFactory = flushToDiskFactory; |
| this.prepareBackupFactory = prepareBackupFactory; |
| this.abortBackupFactory = abortBackupFactory; |
| this.finishBackupFactory = finishBackupFactory; |
| this.dm = dm; |
| this.cache = cache; |
| this.backupLockService = backupLockService; |
| this.missingPersistentMembersProvider = missingPersistentMembersProvider; |
| } |
| |
| public BackupStatus backupAllMembers(String targetDirPath, String baselineDirPath) { |
| Properties properties = new BackupConfigFactory().withTargetDirPath(targetDirPath) |
| .withBaselineDirPath(baselineDirPath).createBackupProperties(); |
| return performBackup(properties); |
| } |
| |
| private BackupStatus performBackup(Properties properties) throws ManagementException { |
| if (backupLockService.obtainLock(dm)) { |
| try { |
| return performBackupUnderLock(properties); |
| } finally { |
| backupLockService.releaseLock(dm); |
| } |
| } else { |
| throw new ManagementException( |
| "A backup is already in progress."); |
| } |
| } |
| |
| private BackupStatus performBackupUnderLock(Properties properties) { |
| Set<PersistentID> missingMembers = |
| missingPersistentMembersProvider.getMissingPersistentMembers(dm); |
| Set<InternalDistributedMember> recipients = dm.getOtherDistributionManagerIds(); |
| |
| BackupDataStoreResult result = performBackupSteps(dm.getId(), recipients, properties); |
| |
| // It's possible that when calling getMissingPersistentMembers, some members are |
| // still creating/recovering regions, and at FinishBackupRequest.send, the |
| // regions at the members are ready. Logically, since the members in successfulMembers |
| // should override the previous missingMembers |
| for (Set<PersistentID> onlineMembersIds : result.getSuccessfulMembers().values()) { |
| missingMembers.removeAll(onlineMembersIds); |
| } |
| |
| result.getExistingDataStores().keySet().removeAll(result.getSuccessfulMembers().keySet()); |
| for (Set<PersistentID> lostMembersIds : result.getExistingDataStores().values()) { |
| missingMembers.addAll(lostMembersIds); |
| } |
| return new BackupStatusImpl(result.getSuccessfulMembers(), missingMembers); |
| } |
| |
| private BackupDataStoreResult performBackupSteps(InternalDistributedMember member, |
| Set<InternalDistributedMember> recipients, Properties properties) { |
| flushToDiskFactory.createFlushToDiskStep(dm, member, cache, recipients, flushToDiskFactory) |
| .send(); |
| |
| boolean abort = true; |
| Map<DistributedMember, Set<PersistentID>> successfulMembers; |
| Map<DistributedMember, Set<PersistentID>> existingDataStores; |
| try { |
| PrepareBackupStep prepareBackupStep = |
| prepareBackupFactory.createPrepareBackupStep(dm, member, cache, recipients, |
| prepareBackupFactory, properties); |
| existingDataStores = prepareBackupStep.send(); |
| abort = false; |
| } finally { |
| if (abort) { |
| abortBackupFactory.createAbortBackupStep(dm, member, cache, recipients, abortBackupFactory) |
| .send(); |
| successfulMembers = Collections.emptyMap(); |
| } else { |
| successfulMembers = |
| finishBackupFactory.createFinishBackupStep(dm, member, cache, recipients, |
| finishBackupFactory).send(); |
| } |
| } |
| return new BackupDataStoreResult(existingDataStores, successfulMembers); |
| } |
| |
| interface MissingPersistentMembersProvider { |
| |
| Set<PersistentID> getMissingPersistentMembers(DistributionManager dm); |
| } |
| |
| private static class DefaultMissingPersistentMembersProvider |
| implements MissingPersistentMembersProvider { |
| |
| @Override |
| public Set<PersistentID> getMissingPersistentMembers(DistributionManager dm) { |
| return AdminDistributedSystemImpl.getMissingPersistentMembers(dm); |
| } |
| } |
| } |