| /* |
| * 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.iotdb.db.engine.storagegroup; |
| |
| import org.apache.iotdb.db.conf.IoTDBDescriptor; |
| import org.apache.iotdb.db.rescon.SystemInfo; |
| import org.apache.iotdb.db.utils.MmapUtil; |
| import org.apache.iotdb.db.utils.TestOnly; |
| |
| import java.nio.ByteBuffer; |
| import java.nio.MappedByteBuffer; |
| import java.util.List; |
| import java.util.concurrent.CopyOnWriteArrayList; |
| import java.util.concurrent.atomic.AtomicLong; |
| import java.util.function.Consumer; |
| import java.util.function.Supplier; |
| |
| /** The storageGroupInfo records the total memory cost of the Storage Group. */ |
| public class StorageGroupInfo { |
| |
| private VirtualStorageGroupProcessor virtualStorageGroupProcessor; |
| |
| /** |
| * The total Storage group memory cost, including unsealed TsFileResource, ChunkMetadata, WAL, |
| * primitive arrays and TEXT values |
| */ |
| private AtomicLong memoryCost; |
| |
| /** The threshold of reporting it's size to SystemInfo */ |
| private long storageGroupSizeReportThreshold = |
| IoTDBDescriptor.getInstance().getConfig().getStorageGroupSizeReportThreshold(); |
| |
| private AtomicLong lastReportedSize = new AtomicLong(); |
| |
| /** A set of all unclosed TsFileProcessors in this SG */ |
| private List<TsFileProcessor> reportedTsps = new CopyOnWriteArrayList<>(); |
| |
| public StorageGroupInfo(VirtualStorageGroupProcessor virtualStorageGroupProcessor) { |
| this.virtualStorageGroupProcessor = virtualStorageGroupProcessor; |
| memoryCost = new AtomicLong(); |
| } |
| |
| public VirtualStorageGroupProcessor getVirtualStorageGroupProcessor() { |
| return virtualStorageGroupProcessor; |
| } |
| |
| /** When create a new TsFileProcessor, call this method */ |
| public void initTsFileProcessorInfo(TsFileProcessor tsFileProcessor) { |
| reportedTsps.add(tsFileProcessor); |
| } |
| |
| public void addStorageGroupMemCost(long cost) { |
| memoryCost.getAndAdd(cost); |
| } |
| |
| public void releaseStorageGroupMemCost(long cost) { |
| memoryCost.getAndAdd(-cost); |
| } |
| |
| public long getMemCost() { |
| return memoryCost.get(); |
| } |
| |
| public List<TsFileProcessor> getAllReportedTsp() { |
| return reportedTsps; |
| } |
| |
| public boolean needToReportToSystem() { |
| return memoryCost.get() - lastReportedSize.get() > storageGroupSizeReportThreshold; |
| } |
| |
| public void setLastReportedSize(long size) { |
| lastReportedSize.set(size); |
| } |
| |
| /** |
| * When a TsFileProcessor is closing, remove it from reportedTsps, and report to systemInfo to |
| * update SG cost. |
| * |
| * @param tsFileProcessor |
| */ |
| public void closeTsFileProcessorAndReportToSystem(TsFileProcessor tsFileProcessor) { |
| reportedTsps.remove(tsFileProcessor); |
| SystemInfo.getInstance().resetStorageGroupStatus(this); |
| } |
| |
| public Supplier<ByteBuffer[]> getWalSupplier() { |
| if (virtualStorageGroupProcessor != null) { |
| return virtualStorageGroupProcessor::getWalDirectByteBuffer; |
| } else { // only happens in test |
| return this::walSupplier; |
| } |
| } |
| |
| @TestOnly |
| private ByteBuffer[] walSupplier() { |
| ByteBuffer[] buffers = new ByteBuffer[2]; |
| buffers[0] = |
| ByteBuffer.allocateDirect(IoTDBDescriptor.getInstance().getConfig().getWalBufferSize() / 2); |
| buffers[1] = |
| ByteBuffer.allocateDirect(IoTDBDescriptor.getInstance().getConfig().getWalBufferSize() / 2); |
| return buffers; |
| } |
| |
| public Consumer<ByteBuffer[]> getWalConsumer() { |
| if (virtualStorageGroupProcessor != null) { |
| return virtualStorageGroupProcessor::releaseWalBuffer; |
| } else { // only happens in test |
| return this::walConsumer; |
| } |
| } |
| |
| @TestOnly |
| private void walConsumer(ByteBuffer[] buffers) { |
| for (ByteBuffer byteBuffer : buffers) { |
| MmapUtil.clean((MappedByteBuffer) byteBuffer); |
| } |
| } |
| } |