| /** |
| * 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.hadoop.hbase.util.compaction; |
| |
| import java.io.IOException; |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.Optional; |
| import java.util.Set; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FileStatus; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.hbase.client.Admin; |
| import org.apache.hadoop.hbase.client.Connection; |
| import org.apache.hadoop.hbase.client.ConnectionFactory; |
| import org.apache.hadoop.hbase.client.RegionInfo; |
| import org.apache.hadoop.hbase.regionserver.HRegionFileSystem; |
| import org.apache.hadoop.hbase.regionserver.StoreFileInfo; |
| import org.apache.hadoop.hbase.util.CommonFSUtils; |
| import org.apache.hadoop.hbase.util.FSUtils; |
| import org.apache.yetus.audience.InterfaceAudience; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import org.apache.hbase.thirdparty.com.google.common.collect.Sets; |
| |
| @InterfaceAudience.Private |
| class MajorCompactionRequest { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(MajorCompactionRequest.class); |
| |
| protected final Configuration configuration; |
| protected final RegionInfo region; |
| private Set<String> stores; |
| |
| MajorCompactionRequest(Configuration configuration, RegionInfo region) { |
| this.configuration = configuration; |
| this.region = region; |
| } |
| |
| MajorCompactionRequest(Configuration configuration, RegionInfo region, |
| Set<String> stores) { |
| this(configuration, region); |
| this.stores = stores; |
| } |
| |
| static Optional<MajorCompactionRequest> newRequest(Configuration configuration, RegionInfo info, |
| Set<String> stores, long timestamp) throws IOException { |
| MajorCompactionRequest request = |
| new MajorCompactionRequest(configuration, info, stores); |
| return request.createRequest(configuration, stores, timestamp); |
| } |
| |
| RegionInfo getRegion() { |
| return region; |
| } |
| |
| Set<String> getStores() { |
| return stores; |
| } |
| |
| void setStores(Set<String> stores) { |
| this.stores = stores; |
| } |
| |
| Optional<MajorCompactionRequest> createRequest(Configuration configuration, |
| Set<String> stores, long timestamp) throws IOException { |
| Set<String> familiesToCompact = getStoresRequiringCompaction(stores, timestamp); |
| MajorCompactionRequest request = null; |
| if (!familiesToCompact.isEmpty()) { |
| request = new MajorCompactionRequest(configuration, region, familiesToCompact); |
| } |
| return Optional.ofNullable(request); |
| } |
| |
| Set<String> getStoresRequiringCompaction(Set<String> requestedStores, long timestamp) |
| throws IOException { |
| try(Connection connection = getConnection(configuration)) { |
| HRegionFileSystem fileSystem = getFileSystem(connection); |
| Set<String> familiesToCompact = Sets.newHashSet(); |
| for (String family : requestedStores) { |
| if (shouldCFBeCompacted(fileSystem, family, timestamp)) { |
| familiesToCompact.add(family); |
| } |
| } |
| return familiesToCompact; |
| } |
| } |
| |
| boolean shouldCFBeCompacted(HRegionFileSystem fileSystem, String family, long ts) |
| throws IOException { |
| |
| // do we have any store files? |
| Collection<StoreFileInfo> storeFiles = fileSystem.getStoreFiles(family); |
| if (storeFiles == null) { |
| LOG.info("Excluding store: " + family + " for compaction for region: " + fileSystem |
| .getRegionInfo().getEncodedName(), " has no store files"); |
| return false; |
| } |
| // check for reference files |
| if (fileSystem.hasReferences(family) && familyHasReferenceFile(fileSystem, family, ts)) { |
| LOG.info("Including store: " + family + " with: " + storeFiles.size() |
| + " files for compaction for region: " + fileSystem.getRegionInfo().getEncodedName()); |
| return true; |
| } |
| // check store file timestamps |
| boolean includeStore = this.shouldIncludeStore(fileSystem, family, storeFiles, ts); |
| if (!includeStore) { |
| LOG.info("Excluding store: " + family + " for compaction for region: " + fileSystem |
| .getRegionInfo().getEncodedName() + " already compacted"); |
| } |
| return includeStore; |
| } |
| |
| protected boolean shouldIncludeStore(HRegionFileSystem fileSystem, String family, |
| Collection<StoreFileInfo> storeFiles, long ts) throws IOException { |
| |
| for (StoreFileInfo storeFile : storeFiles) { |
| if (storeFile.getModificationTime() < ts) { |
| LOG.info("Including store: " + family + " with: " + storeFiles.size() |
| + " files for compaction for region: " |
| + fileSystem.getRegionInfo().getEncodedName()); |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| Connection getConnection(Configuration configuration) throws IOException { |
| return ConnectionFactory.createConnection(configuration); |
| } |
| |
| protected boolean familyHasReferenceFile(HRegionFileSystem fileSystem, String family, long ts) |
| throws IOException { |
| List<Path> referenceFiles = |
| getReferenceFilePaths(fileSystem.getFileSystem(), fileSystem.getStoreDir(family)); |
| for (Path referenceFile : referenceFiles) { |
| FileStatus status = fileSystem.getFileSystem().getFileLinkStatus(referenceFile); |
| if (status.getModificationTime() < ts) { |
| LOG.info("Including store: " + family + " for compaction for region: " + fileSystem |
| .getRegionInfo().getEncodedName() + " (reference store files)"); |
| return true; |
| } |
| } |
| return false; |
| |
| } |
| |
| List<Path> getReferenceFilePaths(FileSystem fileSystem, Path familyDir) |
| throws IOException { |
| return FSUtils.getReferenceFilePaths(fileSystem, familyDir); |
| } |
| |
| HRegionFileSystem getFileSystem(Connection connection) throws IOException { |
| Admin admin = connection.getAdmin(); |
| return HRegionFileSystem.openRegionFromFileSystem(admin.getConfiguration(), |
| CommonFSUtils.getCurrentFileSystem(admin.getConfiguration()), CommonFSUtils.getTableDir( |
| CommonFSUtils.getRootDir(admin.getConfiguration()), region.getTable()), |
| region, true); |
| } |
| |
| @Override |
| public String toString() { |
| return "region: " + region.getEncodedName() + " store(s): " + stores; |
| } |
| } |