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

Example 6 with TableFileSystemView

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

the class TestCleaner method testInsertAndCleanByVersions.

/**
 * Test Helper for Cleaning by versions logic from HoodieWriteClient API perspective.
 *
 * @param insertFn Insert API to be tested
 * @param upsertFn Upsert API to be tested
 * @param isPreppedAPI Flag to indicate if a prepped-version is used. If true, a wrapper function will be used during
 *        record generation to also tag the regards (de-dupe is implicit as we use unique record-gen APIs)
 * @throws Exception in case of errors
 */
private void testInsertAndCleanByVersions(Function3<JavaRDD<WriteStatus>, SparkRDDWriteClient, JavaRDD<HoodieRecord>, String> insertFn, Function3<JavaRDD<WriteStatus>, SparkRDDWriteClient, JavaRDD<HoodieRecord>, String> upsertFn, boolean isPreppedAPI) throws Exception {
    // keep upto 2 versions for each file
    int maxVersions = 2;
    HoodieWriteConfig cfg = getConfigBuilder().withCompactionConfig(HoodieCompactionConfig.newBuilder().withCleanerPolicy(HoodieCleaningPolicy.KEEP_LATEST_FILE_VERSIONS).retainFileVersions(maxVersions).build()).withParallelism(1, 1).withBulkInsertParallelism(1).withFinalizeWriteParallelism(1).withDeleteParallelism(1).withConsistencyGuardConfig(ConsistencyGuardConfig.newBuilder().withConsistencyCheckEnabled(true).build()).build();
    try (SparkRDDWriteClient client = getHoodieWriteClient(cfg)) {
        final Function2<List<HoodieRecord>, String, Integer> recordInsertGenWrappedFunction = generateWrapRecordsFn(isPreppedAPI, cfg, dataGen::generateInserts);
        final Function2<List<HoodieRecord>, String, Integer> recordUpsertGenWrappedFunction = generateWrapRecordsFn(isPreppedAPI, cfg, dataGen::generateUniqueUpdates);
        insertFirstBigBatchForClientCleanerTest(cfg, client, recordInsertGenWrappedFunction, insertFn, HoodieCleaningPolicy.KEEP_LATEST_FILE_VERSIONS);
        Map<HoodieFileGroupId, FileSlice> compactionFileIdToLatestFileSlice = new HashMap<>();
        metaClient = HoodieTableMetaClient.reload(metaClient);
        HoodieTable table = HoodieSparkTable.create(getConfig(), context, metaClient);
        for (String partitionPath : dataGen.getPartitionPaths()) {
            TableFileSystemView fsView = table.getFileSystemView();
            Option<Boolean> added = Option.fromJavaOptional(fsView.getAllFileGroups(partitionPath).findFirst().map(fg -> {
                fg.getLatestFileSlice().map(fs -> compactionFileIdToLatestFileSlice.put(fg.getFileGroupId(), fs));
                return true;
            }));
            if (added.isPresent()) {
                // Select only one file-group for compaction
                break;
            }
        }
        // Create workload with selected file-slices
        List<Pair<String, FileSlice>> partitionFileSlicePairs = compactionFileIdToLatestFileSlice.entrySet().stream().map(e -> Pair.of(e.getKey().getPartitionPath(), e.getValue())).collect(Collectors.toList());
        HoodieCompactionPlan compactionPlan = CompactionUtils.buildFromFileSlices(partitionFileSlicePairs, Option.empty(), Option.empty());
        List<String> instantTimes = makeIncrementalCommitTimes(9, 1, 10);
        String compactionTime = instantTimes.get(0);
        table.getActiveTimeline().saveToCompactionRequested(new HoodieInstant(State.REQUESTED, HoodieTimeline.COMPACTION_ACTION, compactionTime), TimelineMetadataUtils.serializeCompactionPlan(compactionPlan));
        instantTimes = instantTimes.subList(1, instantTimes.size());
        // remaining.
        for (String newInstantTime : instantTimes) {
            try {
                client.startCommitWithTime(newInstantTime);
                List<HoodieRecord> records = recordUpsertGenWrappedFunction.apply(newInstantTime, 100);
                List<WriteStatus> statuses = upsertFn.apply(client, jsc.parallelize(records, 1), newInstantTime).collect();
                // Verify there are no errors
                assertNoWriteErrors(statuses);
                metaClient = HoodieTableMetaClient.reload(metaClient);
                table = HoodieSparkTable.create(getConfig(), context, metaClient);
                HoodieTimeline timeline = table.getMetaClient().getCommitsTimeline();
                TableFileSystemView fsView = table.getFileSystemView();
                // Need to ensure the following
                for (String partitionPath : dataGen.getPartitionPaths()) {
                    // compute all the versions of all files, from time 0
                    HashMap<String, TreeSet<String>> fileIdToVersions = new HashMap<>();
                    for (HoodieInstant entry : timeline.getInstants().collect(Collectors.toList())) {
                        HoodieCommitMetadata commitMetadata = HoodieCommitMetadata.fromBytes(timeline.getInstantDetails(entry).get(), HoodieCommitMetadata.class);
                        for (HoodieWriteStat wstat : commitMetadata.getWriteStats(partitionPath)) {
                            if (!fileIdToVersions.containsKey(wstat.getFileId())) {
                                fileIdToVersions.put(wstat.getFileId(), new TreeSet<>());
                            }
                            fileIdToVersions.get(wstat.getFileId()).add(FSUtils.getCommitTime(new Path(wstat.getPath()).getName()));
                        }
                    }
                    List<HoodieFileGroup> fileGroups = fsView.getAllFileGroups(partitionPath).collect(Collectors.toList());
                    for (HoodieFileGroup fileGroup : fileGroups) {
                        if (compactionFileIdToLatestFileSlice.containsKey(fileGroup.getFileGroupId())) {
                            // Ensure latest file-slice selected for compaction is retained
                            Option<HoodieBaseFile> dataFileForCompactionPresent = Option.fromJavaOptional(fileGroup.getAllBaseFiles().filter(df -> {
                                return compactionFileIdToLatestFileSlice.get(fileGroup.getFileGroupId()).getBaseInstantTime().equals(df.getCommitTime());
                            }).findAny());
                            assertTrue(dataFileForCompactionPresent.isPresent(), "Data File selected for compaction is retained");
                        } else {
                            // file has no more than max versions
                            String fileId = fileGroup.getFileGroupId().getFileId();
                            List<HoodieBaseFile> dataFiles = fileGroup.getAllBaseFiles().collect(Collectors.toList());
                            assertTrue(dataFiles.size() <= maxVersions, "fileId " + fileId + " has more than " + maxVersions + " versions");
                            // Each file, has the latest N versions (i.e cleaning gets rid of older versions)
                            List<String> commitedVersions = new ArrayList<>(fileIdToVersions.get(fileId));
                            for (int i = 0; i < dataFiles.size(); i++) {
                                assertEquals((dataFiles.get(i)).getCommitTime(), commitedVersions.get(commitedVersions.size() - 1 - i), "File " + fileId + " does not have latest versions on commits" + commitedVersions);
                            }
                        }
                    }
                }
            } catch (IOException ioe) {
                throw new RuntimeException(ioe);
            }
        }
    }
}