Examples with HoodieTableFileSystemView org.apache.hudi.common.table.view.HoodieTableFileSystemView used on opensource projects

Example 26 with HoodieTableFileSystemView

use of org.apache.hudi.common.table.view.HoodieTableFileSystemView in project hudi by apache.

the class CompactionAdminClient method getRenamingActionsForUnschedulingCompactionOperation.

/**
 * Generate renaming actions for unscheduling a compaction operation NOTE: Can only be used safely when no writer
 * (ingestion/compaction) is running.
 *
 * @param metaClient Hoodie Table MetaClient
 * @param compactionInstant Compaction Instant
 * @param operation Compaction Operation
 * @param fsViewOpt Cached File System View
 * @param skipValidation Skip Validation
 * @return list of pairs of log-files (old, new) and for each pair, rename must be done to successfully unschedule
 *         compaction.
 */
public List<Pair<HoodieLogFile, HoodieLogFile>> getRenamingActionsForUnschedulingCompactionOperation(HoodieTableMetaClient metaClient, String compactionInstant, CompactionOperation operation, Option<HoodieTableFileSystemView> fsViewOpt, boolean skipValidation) throws IOException {
    List<Pair<HoodieLogFile, HoodieLogFile>> result = new ArrayList<>();
    HoodieTableFileSystemView fileSystemView = fsViewOpt.isPresent() ? fsViewOpt.get() : new HoodieTableFileSystemView(metaClient, metaClient.getCommitsAndCompactionTimeline());
    if (!skipValidation) {
        validateCompactionOperation(metaClient, compactionInstant, operation, Option.of(fileSystemView));
    }
    HoodieInstant lastInstant = metaClient.getCommitsAndCompactionTimeline().lastInstant().get();
    FileSlice merged = fileSystemView.getLatestMergedFileSlicesBeforeOrOn(operation.getPartitionPath(), lastInstant.getTimestamp()).filter(fs -> fs.getFileId().equals(operation.getFileId())).findFirst().get();
    List<HoodieLogFile> logFilesToRepair = merged.getLogFiles().filter(lf -> lf.getBaseCommitTime().equals(compactionInstant)).sorted(HoodieLogFile.getLogFileComparator()).collect(Collectors.toList());
    FileSlice fileSliceForCompaction = fileSystemView.getLatestFileSlicesBeforeOrOn(operation.getPartitionPath(), operation.getBaseInstantTime(), true).filter(fs -> fs.getFileId().equals(operation.getFileId())).findFirst().get();
    int maxUsedVersion = fileSliceForCompaction.getLogFiles().findFirst().map(HoodieLogFile::getLogVersion).orElse(HoodieLogFile.LOGFILE_BASE_VERSION - 1);
    String logExtn = fileSliceForCompaction.getLogFiles().findFirst().map(lf -> "." + lf.getFileExtension()).orElse(HoodieLogFile.DELTA_EXTENSION);
    String parentPath = fileSliceForCompaction.getBaseFile().map(df -> new Path(df.getPath()).getParent().toString()).orElse(fileSliceForCompaction.getLogFiles().findFirst().map(lf -> lf.getPath().getParent().toString()).get());
    for (HoodieLogFile toRepair : logFilesToRepair) {
        int version = maxUsedVersion + 1;
        HoodieLogFile newLf = new HoodieLogFile(new Path(parentPath, FSUtils.makeLogFileName(operation.getFileId(), logExtn, operation.getBaseInstantTime(), version, HoodieLogFormat.UNKNOWN_WRITE_TOKEN)));
        result.add(Pair.of(toRepair, newLf));
        maxUsedVersion = version;
    }
    return result;
}

Example 27 with HoodieTableFileSystemView

use of org.apache.hudi.common.table.view.HoodieTableFileSystemView in project hudi by apache.

the class CompactionAdminClient method getRenamingActionsForUnschedulingCompactionPlan.

/**
 * Generate renaming actions for unscheduling a pending compaction plan. NOTE: Can only be used safely when no writer
 * (ingestion/compaction) is running.
 *
 * @param metaClient Hoodie Table MetaClient
 * @param compactionInstant Compaction Instant to be unscheduled
 * @param fsViewOpt Cached File System View
 * @param skipValidation Skip Validation
 * @return list of pairs of log-files (old, new) and for each pair, rename must be done to successfully unschedule
 *         compaction.
 */
public List<Pair<HoodieLogFile, HoodieLogFile>> getRenamingActionsForUnschedulingCompactionPlan(HoodieTableMetaClient metaClient, String compactionInstant, int parallelism, Option<HoodieTableFileSystemView> fsViewOpt, boolean skipValidation) throws IOException {
    HoodieTableFileSystemView fsView = fsViewOpt.isPresent() ? fsViewOpt.get() : new HoodieTableFileSystemView(metaClient, metaClient.getCommitsAndCompactionTimeline());
    HoodieCompactionPlan plan = getCompactionPlan(metaClient, compactionInstant);
    if (plan.getOperations() != null) {
        LOG.info("Number of Compaction Operations :" + plan.getOperations().size() + " for instant :" + compactionInstant);
        List<CompactionOperation> ops = plan.getOperations().stream().map(CompactionOperation::convertFromAvroRecordInstance).collect(Collectors.toList());
        context.setJobStatus(this.getClass().getSimpleName(), "Generate compaction unscheduling operations");
        return context.flatMap(ops, op -> {
            try {
                return getRenamingActionsForUnschedulingCompactionOperation(metaClient, compactionInstant, op, Option.of(fsView), skipValidation).stream();
            } catch (IOException ioe) {
                throw new HoodieIOException(ioe.getMessage(), ioe);
            } catch (CompactionValidationException ve) {
                throw new HoodieException(ve);
            }
        }, parallelism);
    }
    LOG.warn("No operations for compaction instant : " + compactionInstant);
    return new ArrayList<>();
}

Example 28 with HoodieTableFileSystemView

use of org.apache.hudi.common.table.view.HoodieTableFileSystemView in project hudi by apache.

the class HoodieSnapshotCopier method snapshot.

public void snapshot(JavaSparkContext jsc, String baseDir, final String outputDir, final boolean shouldAssumeDatePartitioning, final boolean useFileListingFromMetadata) throws IOException {
    FileSystem fs = FSUtils.getFs(baseDir, jsc.hadoopConfiguration());
    final SerializableConfiguration serConf = new SerializableConfiguration(jsc.hadoopConfiguration());
    final HoodieTableMetaClient tableMetadata = HoodieTableMetaClient.builder().setConf(fs.getConf()).setBasePath(baseDir).build();
    final BaseFileOnlyView fsView = new HoodieTableFileSystemView(tableMetadata, tableMetadata.getActiveTimeline().getWriteTimeline().filterCompletedInstants());
    HoodieEngineContext context = new HoodieSparkEngineContext(jsc);
    // Get the latest commit
    Option<HoodieInstant> latestCommit = tableMetadata.getActiveTimeline().getWriteTimeline().filterCompletedInstants().lastInstant();
    if (!latestCommit.isPresent()) {
        LOG.warn("No commits present. Nothing to snapshot");
        return;
    }
    final String latestCommitTimestamp = latestCommit.get().getTimestamp();
    LOG.info(String.format("Starting to snapshot latest version files which are also no-late-than %s.", latestCommitTimestamp));
    List<String> partitions = FSUtils.getAllPartitionPaths(context, baseDir, useFileListingFromMetadata, shouldAssumeDatePartitioning);
    if (partitions.size() > 0) {
        LOG.info(String.format("The job needs to copy %d partitions.", partitions.size()));
        // Make sure the output directory is empty
        Path outputPath = new Path(outputDir);
        if (fs.exists(outputPath)) {
            LOG.warn(String.format("The output path %s targetBasePath already exists, deleting", outputPath));
            fs.delete(new Path(outputDir), true);
        }
        context.setJobStatus(this.getClass().getSimpleName(), "Creating a snapshot");
        List<Tuple2<String, String>> filesToCopy = context.flatMap(partitions, partition -> {
            // Only take latest version files <= latestCommit.
            FileSystem fs1 = FSUtils.getFs(baseDir, serConf.newCopy());
            List<Tuple2<String, String>> filePaths = new ArrayList<>();
            Stream<HoodieBaseFile> dataFiles = fsView.getLatestBaseFilesBeforeOrOn(partition, latestCommitTimestamp);
            dataFiles.forEach(hoodieDataFile -> filePaths.add(new Tuple2<>(partition, hoodieDataFile.getPath())));
            // also need to copy over partition metadata
            Path partitionMetaFile = new Path(FSUtils.getPartitionPath(baseDir, partition), HoodiePartitionMetadata.HOODIE_PARTITION_METAFILE);
            if (fs1.exists(partitionMetaFile)) {
                filePaths.add(new Tuple2<>(partition, partitionMetaFile.toString()));
            }
            return filePaths.stream();
        }, partitions.size());
        context.foreach(filesToCopy, tuple -> {
            String partition = tuple._1();
            Path sourceFilePath = new Path(tuple._2());
            Path toPartitionPath = FSUtils.getPartitionPath(outputDir, partition);
            FileSystem ifs = FSUtils.getFs(baseDir, serConf.newCopy());
            if (!ifs.exists(toPartitionPath)) {
                ifs.mkdirs(toPartitionPath);
            }
            FileUtil.copy(ifs, sourceFilePath, ifs, new Path(toPartitionPath, sourceFilePath.getName()), false, ifs.getConf());
        }, filesToCopy.size());
        // Also copy the .commit files
        LOG.info(String.format("Copying .commit files which are no-late-than %s.", latestCommitTimestamp));
        FileStatus[] commitFilesToCopy = fs.listStatus(new Path(baseDir + "/" + HoodieTableMetaClient.METAFOLDER_NAME), (commitFilePath) -> {
            if (commitFilePath.getName().equals(HoodieTableConfig.HOODIE_PROPERTIES_FILE)) {
                return true;
            } else {
                String instantTime = FSUtils.getCommitFromCommitFile(commitFilePath.getName());
                return HoodieTimeline.compareTimestamps(instantTime, HoodieTimeline.LESSER_THAN_OR_EQUALS, latestCommitTimestamp);
            }
        });
        for (FileStatus commitStatus : commitFilesToCopy) {
            Path targetFilePath = new Path(outputDir + "/" + HoodieTableMetaClient.METAFOLDER_NAME + "/" + commitStatus.getPath().getName());
            if (!fs.exists(targetFilePath.getParent())) {
                fs.mkdirs(targetFilePath.getParent());
            }
            if (fs.exists(targetFilePath)) {
                LOG.error(String.format("The target output commit file (%s targetBasePath) already exists.", targetFilePath));
            }
            FileUtil.copy(fs, commitStatus.getPath(), fs, targetFilePath, false, fs.getConf());
        }
    } else {
        LOG.info("The job has 0 partition to copy.");
    }
    // Create the _SUCCESS tag
    Path successTagPath = new Path(outputDir + "/_SUCCESS");
    if (!fs.exists(successTagPath)) {
        LOG.info(String.format("Creating _SUCCESS under targetBasePath: %s", outputDir));
        fs.createNewFile(successTagPath);
    }
}

Example 29 with HoodieTableFileSystemView

use of org.apache.hudi.common.table.view.HoodieTableFileSystemView in project hudi by apache.

the class HoodieSnapshotExporter method getBaseFileOnlyView.

private BaseFileOnlyView getBaseFileOnlyView(JavaSparkContext jsc, Config cfg) {
    FileSystem fs = FSUtils.getFs(cfg.sourceBasePath, jsc.hadoopConfiguration());
    HoodieTableMetaClient tableMetadata = HoodieTableMetaClient.builder().setConf(fs.getConf()).setBasePath(cfg.sourceBasePath).build();
    return new HoodieTableFileSystemView(tableMetadata, tableMetadata.getActiveTimeline().getWriteTimeline().filterCompletedInstants());
}

Example 30 with HoodieTableFileSystemView

use of org.apache.hudi.common.table.view.HoodieTableFileSystemView in project hudi by apache.

the class TestHoodieBackedMetadata method validateMetadata.

private void validateMetadata(SparkRDDWriteClient testClient) throws IOException {
    HoodieWriteConfig config = testClient.getConfig();
    SparkRDDWriteClient client;
    if (config.isEmbeddedTimelineServerEnabled()) {
        testClient.close();
        client = new SparkRDDWriteClient(testClient.getEngineContext(), testClient.getConfig());
    } else {
        client = testClient;
    }
    HoodieTableMetadata tableMetadata = metadata(client);
    assertNotNull(tableMetadata, "MetadataReader should have been initialized");
    if (!config.isMetadataTableEnabled()) {
        return;
    }
    HoodieTimer timer = new HoodieTimer().startTimer();
    HoodieSparkEngineContext engineContext = new HoodieSparkEngineContext(jsc);
    // Partitions should match
    FileSystemBackedTableMetadata fsBackedTableMetadata = new FileSystemBackedTableMetadata(engineContext, new SerializableConfiguration(hadoopConf), config.getBasePath(), config.shouldAssumeDatePartitioning());
    List<String> fsPartitions = fsBackedTableMetadata.getAllPartitionPaths();
    List<String> metadataPartitions = tableMetadata.getAllPartitionPaths();
    Collections.sort(fsPartitions);
    Collections.sort(metadataPartitions);
    assertEquals(fsPartitions.size(), metadataPartitions.size(), "Partitions should match");
    assertTrue(fsPartitions.equals(metadataPartitions), "Partitions should match");
    // Files within each partition should match
    metaClient = HoodieTableMetaClient.reload(metaClient);
    HoodieTable table = HoodieSparkTable.create(config, engineContext);
    TableFileSystemView tableView = table.getHoodieView();
    List<String> fullPartitionPaths = fsPartitions.stream().map(partition -> basePath + "/" + partition).collect(Collectors.toList());
    Map<String, FileStatus[]> partitionToFilesMap = tableMetadata.getAllFilesInPartitions(fullPartitionPaths);
    assertEquals(fsPartitions.size(), partitionToFilesMap.size());
    fsPartitions.forEach(partition -> {
        try {
            Path partitionPath;
            if (partition.equals("")) {
                // Should be the non-partitioned case
                partitionPath = new Path(basePath);
            } else {
                partitionPath = new Path(basePath, partition);
            }
            FileStatus[] fsStatuses = FSUtils.getAllDataFilesInPartition(fs, partitionPath);
            FileStatus[] metaStatuses = tableMetadata.getAllFilesInPartition(partitionPath);
            List<String> fsFileNames = Arrays.stream(fsStatuses).map(s -> s.getPath().getName()).collect(Collectors.toList());
            List<String> metadataFilenames = Arrays.stream(metaStatuses).map(s -> s.getPath().getName()).collect(Collectors.toList());
            Collections.sort(fsFileNames);
            Collections.sort(metadataFilenames);
            assertEquals(fsStatuses.length, partitionToFilesMap.get(partitionPath.toString()).length);
            // File sizes should be valid
            Arrays.stream(metaStatuses).forEach(s -> assertTrue(s.getLen() > 0));
            if ((fsFileNames.size() != metadataFilenames.size()) || (!fsFileNames.equals(metadataFilenames))) {
                LOG.info("*** File system listing = " + Arrays.toString(fsFileNames.toArray()));
                LOG.info("*** Metadata listing = " + Arrays.toString(metadataFilenames.toArray()));
                for (String fileName : fsFileNames) {
                    if (!metadataFilenames.contains(fileName)) {
                        LOG.error(partition + "FsFilename " + fileName + " not found in Meta data");
                    }
                }
                for (String fileName : metadataFilenames) {
                    if (!fsFileNames.contains(fileName)) {
                        LOG.error(partition + "Metadata file " + fileName + " not found in original FS");
                    }
                }
            }
            // Block sizes should be valid
            Arrays.stream(metaStatuses).forEach(s -> assertTrue(s.getBlockSize() > 0));
            List<Long> fsBlockSizes = Arrays.stream(fsStatuses).map(FileStatus::getBlockSize).collect(Collectors.toList());
            Collections.sort(fsBlockSizes);
            List<Long> metadataBlockSizes = Arrays.stream(metaStatuses).map(FileStatus::getBlockSize).collect(Collectors.toList());
            Collections.sort(metadataBlockSizes);
            assertEquals(fsBlockSizes, metadataBlockSizes);
            assertEquals(fsFileNames.size(), metadataFilenames.size(), "Files within partition " + partition + " should match");
            assertTrue(fsFileNames.equals(metadataFilenames), "Files within partition " + partition + " should match");
            // FileSystemView should expose the same data
            List<HoodieFileGroup> fileGroups = tableView.getAllFileGroups(partition).collect(Collectors.toList());
            fileGroups.addAll(tableView.getAllReplacedFileGroups(partition).collect(Collectors.toList()));
            fileGroups.forEach(g -> LogManager.getLogger(TestHoodieBackedMetadata.class).info(g));
            fileGroups.forEach(g -> g.getAllBaseFiles().forEach(b -> LogManager.getLogger(TestHoodieBackedMetadata.class).info(b)));
            fileGroups.forEach(g -> g.getAllFileSlices().forEach(s -> LogManager.getLogger(TestHoodieBackedMetadata.class).info(s)));
            long numFiles = fileGroups.stream().mapToLong(g -> g.getAllBaseFiles().count() + g.getAllFileSlices().mapToLong(s -> s.getLogFiles().count()).sum()).sum();
            assertEquals(metadataFilenames.size(), numFiles);
        } catch (IOException e) {
            e.printStackTrace();
            assertTrue(false, "Exception should not be raised: " + e);
        }
    });
    HoodieBackedTableMetadataWriter metadataWriter = metadataWriter(client);
    assertNotNull(metadataWriter, "MetadataWriter should have been initialized");
    // Validate write config for metadata table
    HoodieWriteConfig metadataWriteConfig = metadataWriter.getWriteConfig();
    assertFalse(metadataWriteConfig.isMetadataTableEnabled(), "No metadata table for metadata table");
    // Metadata table should be in sync with the dataset
    HoodieTableMetaClient metadataMetaClient = HoodieTableMetaClient.builder().setConf(hadoopConf).setBasePath(metadataTableBasePath).build();
    // Metadata table is MOR
    assertEquals(metadataMetaClient.getTableType(), HoodieTableType.MERGE_ON_READ, "Metadata Table should be MOR");
    // Metadata table is HFile format
    assertEquals(metadataMetaClient.getTableConfig().getBaseFileFormat(), HoodieFileFormat.HFILE, "Metadata Table base file format should be HFile");
    // Metadata table has a fixed number of partitions
    // Cannot use FSUtils.getAllFoldersWithPartitionMetaFile for this as that function filters all directory
    // in the .hoodie folder.
    List<String> metadataTablePartitions = FSUtils.getAllPartitionPaths(engineContext, HoodieTableMetadata.getMetadataTableBasePath(basePath), false, false);
    assertEquals(metadataWriter.getEnabledPartitionTypes().size(), metadataTablePartitions.size());
    final Map<String, MetadataPartitionType> metadataEnabledPartitionTypes = new HashMap<>();
    metadataWriter.getEnabledPartitionTypes().forEach(e -> metadataEnabledPartitionTypes.put(e.getPartitionPath(), e));
    // Metadata table should automatically compact and clean
    // versions are +1 as autoclean / compaction happens end of commits
    int numFileVersions = metadataWriteConfig.getCleanerFileVersionsRetained() + 1;
    HoodieTableFileSystemView fsView = new HoodieTableFileSystemView(metadataMetaClient, metadataMetaClient.getActiveTimeline());
    metadataTablePartitions.forEach(partition -> {
        List<FileSlice> latestSlices = fsView.getLatestFileSlices(partition).collect(Collectors.toList());
        assertTrue(latestSlices.stream().map(FileSlice::getBaseFile).count() <= metadataEnabledPartitionTypes.get(partition).getFileGroupCount(), "Should have a single latest base file per file group");
        assertTrue(latestSlices.size() <= metadataEnabledPartitionTypes.get(partition).getFileGroupCount(), "Should have a single latest file slice per file group");
        assertTrue(latestSlices.size() <= (numFileVersions * metadataEnabledPartitionTypes.get(partition).getFileGroupCount()), "Should limit file slice to " + numFileVersions + " per file group, but was " + latestSlices.size());
    });
    LOG.info("Validation time=" + timer.endTimer());
}