| /* |
| * 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.asterix.replication.messaging; |
| |
| import static org.apache.hyracks.storage.am.lsm.common.impls.AbstractLSMIndexFileManager.UNINITIALIZED_COMPONENT_SEQ; |
| |
| import java.io.DataInput; |
| import java.io.DataOutputStream; |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.util.Collection; |
| |
| import org.apache.asterix.common.api.INcApplicationContext; |
| import org.apache.asterix.common.storage.DatasetResourceReference; |
| import org.apache.asterix.common.storage.IIndexCheckpointManager; |
| import org.apache.asterix.common.storage.IIndexCheckpointManagerProvider; |
| import org.apache.asterix.common.utils.StoragePathUtil; |
| import org.apache.asterix.replication.api.IReplicaTask; |
| import org.apache.asterix.replication.api.IReplicationWorker; |
| import org.apache.asterix.transaction.management.resource.PersistentLocalResourceRepository; |
| import org.apache.hyracks.api.exceptions.HyracksDataException; |
| import org.apache.hyracks.api.io.FileReference; |
| import org.apache.hyracks.api.io.IIOManager; |
| import org.apache.hyracks.storage.am.lsm.common.impls.AbstractLSMIndexFileManager; |
| import org.apache.hyracks.storage.am.lsm.common.impls.IndexComponentFileReference; |
| import org.apache.hyracks.storage.common.LocalResource; |
| |
| /** |
| * A task to initialize the checkpoints for all indexes in a partition with the replica's current LSN |
| */ |
| public class CheckpointPartitionIndexesTask implements IReplicaTask { |
| |
| private final int partition; |
| private final long maxComponentId; |
| private final String masterNodeId; |
| |
| public CheckpointPartitionIndexesTask(int partition, long maxComponentId, String masterNodeId) { |
| this.partition = partition; |
| this.maxComponentId = maxComponentId; |
| this.masterNodeId = masterNodeId; |
| } |
| |
| @Override |
| public void perform(INcApplicationContext appCtx, IReplicationWorker worker) throws HyracksDataException { |
| final IIndexCheckpointManagerProvider indexCheckpointManagerProvider = |
| appCtx.getIndexCheckpointManagerProvider(); |
| PersistentLocalResourceRepository resRepo = |
| (PersistentLocalResourceRepository) appCtx.getLocalResourceRepository(); |
| final IIOManager ioManager = appCtx.getIoManager(); |
| final Collection<LocalResource> partitionResources = resRepo.getPartitionResources(partition).values(); |
| final long currentLSN = appCtx.getTransactionSubsystem().getLogManager().getAppendLSN(); |
| for (LocalResource ls : partitionResources) { |
| DatasetResourceReference ref = DatasetResourceReference.of(ls); |
| final IIndexCheckpointManager indexCheckpointManager = indexCheckpointManagerProvider.get(ref); |
| // Get most recent sequence of existing files to avoid deletion |
| FileReference indexPath = StoragePathUtil.getIndexPath(ioManager, ref); |
| Collection<FileReference> files = |
| ioManager.list(indexPath, AbstractLSMIndexFileManager.COMPONENT_FILES_FILTER); |
| if (files == null) { |
| throw HyracksDataException |
| .create(new IOException(indexPath + " is not a directory or an IO Error occurred")); |
| } |
| long maxComponentSequence = UNINITIALIZED_COMPONENT_SEQ; |
| for (FileReference file : files) { |
| maxComponentSequence = |
| Math.max(maxComponentSequence, IndexComponentFileReference.of(file).getSequenceEnd()); |
| } |
| if (indexCheckpointManager.getCheckpointCount() > 0) { |
| indexCheckpointManager.flushed(maxComponentSequence, currentLSN, maxComponentId, masterNodeId); |
| } else { |
| indexCheckpointManager.init(maxComponentSequence, currentLSN, maxComponentId, masterNodeId); |
| } |
| } |
| ReplicationProtocol.sendAck(worker.getChannel(), worker.getReusableBuffer()); |
| } |
| |
| @Override |
| public ReplicationProtocol.ReplicationRequestType getMessageType() { |
| return ReplicationProtocol.ReplicationRequestType.CHECKPOINT_PARTITION; |
| } |
| |
| @Override |
| public void serialize(OutputStream out) throws HyracksDataException { |
| try { |
| DataOutputStream dos = new DataOutputStream(out); |
| dos.writeInt(partition); |
| dos.writeLong(maxComponentId); |
| boolean hasMaster = masterNodeId != null; |
| dos.writeBoolean(hasMaster); |
| if (hasMaster) { |
| dos.writeUTF(masterNodeId); |
| } |
| } catch (IOException e) { |
| throw HyracksDataException.create(e); |
| } |
| } |
| |
| public static CheckpointPartitionIndexesTask create(DataInput input) throws HyracksDataException { |
| try { |
| int partition = input.readInt(); |
| long maxComponentId = input.readLong(); |
| final boolean hasMaster = input.readBoolean(); |
| final String masterNodeId = hasMaster ? input.readUTF() : null; |
| return new CheckpointPartitionIndexesTask(partition, maxComponentId, masterNodeId); |
| } catch (IOException e) { |
| throw HyracksDataException.create(e); |
| } |
| } |
| } |