Examples with OpenSearchDirectoryReader org.opensearch.common.lucene.index.OpenSearchDirectoryReader used on opensource projects

Example 1 with OpenSearchDirectoryReader

use of org.opensearch.common.lucene.index.OpenSearchDirectoryReader in project OpenSearch by opensearch-project.

the class Engine method acquireSearcherSupplier.

/**
 * Acquires a point-in-time reader that can be used to create {@link Engine.Searcher}s on demand.
 */
public SearcherSupplier acquireSearcherSupplier(Function<Searcher, Searcher> wrapper, SearcherScope scope) throws EngineException {
    /* Acquire order here is store -> manager since we need
         * to make sure that the store is not closed before
         * the searcher is acquired. */
    if (store.tryIncRef() == false) {
        throw new AlreadyClosedException(shardId + " store is closed", failedEngine.get());
    }
    Releasable releasable = store::decRef;
    try {
        ReferenceManager<OpenSearchDirectoryReader> referenceManager = getReferenceManager(scope);
        OpenSearchDirectoryReader acquire = referenceManager.acquire();
        SearcherSupplier reader = new SearcherSupplier(wrapper) {

            @Override
            public Searcher acquireSearcherInternal(String source) {
                assert assertSearcherIsWarmedUp(source, scope);
                return new Searcher(source, acquire, engineConfig.getSimilarity(), engineConfig.getQueryCache(), engineConfig.getQueryCachingPolicy(), () -> {
                });
            }

            @Override
            protected void doClose() {
                try {
                    referenceManager.release(acquire);
                } catch (IOException e) {
                    throw new UncheckedIOException("failed to close", e);
                } catch (AlreadyClosedException e) {
                    // This means there's a bug somewhere: don't suppress it
                    throw new AssertionError(e);
                } finally {
                    store.decRef();
                }
            }
        };
        // success - hand over the reference to the engine reader
        releasable = null;
        return reader;
    } catch (AlreadyClosedException ex) {
        throw ex;
    } catch (Exception ex) {
        maybeFailEngine("acquire_reader", ex);
        // throw EngineCloseException here if we are already closed
        ensureOpen(ex);
        logger.error(() -> new ParameterizedMessage("failed to acquire reader"), ex);
        throw new EngineException(shardId, "failed to acquire reader", ex);
    } finally {
        Releasables.close(releasable);
    }
}

Example 2 with OpenSearchDirectoryReader

use of org.opensearch.common.lucene.index.OpenSearchDirectoryReader in project OpenSearch by opensearch-project.

the class InternalEngineTests method testNotWarmUpSearcherInEngineCtor.

public void testNotWarmUpSearcherInEngineCtor() throws Exception {
    try (Store store = createStore()) {
        List<OpenSearchDirectoryReader> warmedUpReaders = new ArrayList<>();
        Engine.Warmer warmer = reader -> {
            assertNotNull(reader);
            assertThat(reader, not(in(warmedUpReaders)));
            warmedUpReaders.add(reader);
        };
        EngineConfig config = engine.config();
        final TranslogConfig translogConfig = new TranslogConfig(config.getTranslogConfig().getShardId(), createTempDir(), config.getTranslogConfig().getIndexSettings(), config.getTranslogConfig().getBigArrays());
        EngineConfig configWithWarmer = new EngineConfig(config.getShardId(), config.getThreadPool(), config.getIndexSettings(), warmer, store, config.getMergePolicy(), config.getAnalyzer(), config.getSimilarity(), new CodecService(null, logger), config.getEventListener(), config.getQueryCache(), config.getQueryCachingPolicy(), translogConfig, config.getFlushMergesAfter(), config.getExternalRefreshListener(), config.getInternalRefreshListener(), config.getIndexSort(), config.getCircuitBreakerService(), config.getGlobalCheckpointSupplier(), config.retentionLeasesSupplier(), config.getPrimaryTermSupplier(), config.getTombstoneDocSupplier());
        try (InternalEngine engine = createEngine(configWithWarmer)) {
            assertThat(warmedUpReaders, empty());
            assertThat(expectThrows(Throwable.class, () -> engine.acquireSearcher("test")).getMessage(), equalTo("searcher was not warmed up yet for source[test]"));
            int times = randomIntBetween(1, 10);
            for (int i = 0; i < times; i++) {
                engine.refresh("test");
            }
            assertThat(warmedUpReaders, hasSize(1));
            try (Engine.Searcher internalSearcher = engine.acquireSearcher("test", Engine.SearcherScope.INTERNAL)) {
                try (Engine.Searcher externalSearcher = engine.acquireSearcher("test", Engine.SearcherScope.EXTERNAL)) {
                    assertSame(internalSearcher.getDirectoryReader(), externalSearcher.getDirectoryReader());
                    assertSame(warmedUpReaders.get(0), externalSearcher.getDirectoryReader());
                }
            }
            index(engine, randomInt());
            if (randomBoolean()) {
                engine.refresh("test", Engine.SearcherScope.INTERNAL, true);
                assertThat(warmedUpReaders, hasSize(1));
                try (Engine.Searcher internalSearcher = engine.acquireSearcher("test", Engine.SearcherScope.INTERNAL)) {
                    try (Engine.Searcher externalSearcher = engine.acquireSearcher("test", Engine.SearcherScope.EXTERNAL)) {
                        assertNotSame(internalSearcher.getDirectoryReader(), externalSearcher.getDirectoryReader());
                    }
                }
            }
            engine.refresh("test");
            assertThat(warmedUpReaders, hasSize(2));
            try (Engine.Searcher internalSearcher = engine.acquireSearcher("test", Engine.SearcherScope.INTERNAL)) {
                try (Engine.Searcher externalSearcher = engine.acquireSearcher("test", Engine.SearcherScope.EXTERNAL)) {
                    assertSame(internalSearcher.getDirectoryReader(), externalSearcher.getDirectoryReader());
                    assertSame(warmedUpReaders.get(1), externalSearcher.getDirectoryReader());
                }
            }
        }
    }
}

Example 3 with OpenSearchDirectoryReader

use of org.opensearch.common.lucene.index.OpenSearchDirectoryReader in project OpenSearch by opensearch-project.

the class ReadOnlyEngineTests method testReadOnlyEngine.

public void testReadOnlyEngine() throws Exception {
    IOUtils.close(engine, store);
    Engine readOnlyEngine = null;
    final AtomicLong globalCheckpoint = new AtomicLong(SequenceNumbers.NO_OPS_PERFORMED);
    try (Store store = createStore()) {
        EngineConfig config = config(defaultSettings, store, createTempDir(), newMergePolicy(), null, null, globalCheckpoint::get);
        int numDocs = scaledRandomIntBetween(10, 1000);
        final SeqNoStats lastSeqNoStats;
        final List<DocIdSeqNoAndSource> lastDocIds;
        try (InternalEngine engine = createEngine(config)) {
            Engine.Get get = null;
            for (int i = 0; i < numDocs; i++) {
                ParsedDocument doc = testParsedDocument(Integer.toString(i), null, testDocument(), new BytesArray("{}"), null);
                engine.index(new Engine.Index(newUid(doc), doc, i, primaryTerm.get(), 1, null, Engine.Operation.Origin.REPLICA, System.nanoTime(), -1, false, SequenceNumbers.UNASSIGNED_SEQ_NO, 0));
                if (get == null || rarely()) {
                    get = newGet(randomBoolean(), doc);
                }
                if (rarely()) {
                    engine.flush();
                }
                globalCheckpoint.set(randomLongBetween(globalCheckpoint.get(), engine.getPersistedLocalCheckpoint()));
            }
            engine.syncTranslog();
            globalCheckpoint.set(randomLongBetween(globalCheckpoint.get(), engine.getPersistedLocalCheckpoint()));
            engine.flush();
            readOnlyEngine = new ReadOnlyEngine(engine.engineConfig, engine.getSeqNoStats(globalCheckpoint.get()), engine.getTranslogStats(), false, Function.identity(), true);
            lastSeqNoStats = engine.getSeqNoStats(globalCheckpoint.get());
            lastDocIds = getDocIds(engine, true);
            assertThat(readOnlyEngine.getPersistedLocalCheckpoint(), equalTo(lastSeqNoStats.getLocalCheckpoint()));
            assertThat(readOnlyEngine.getSeqNoStats(globalCheckpoint.get()).getMaxSeqNo(), equalTo(lastSeqNoStats.getMaxSeqNo()));
            assertThat(getDocIds(readOnlyEngine, false), equalTo(lastDocIds));
            for (int i = 0; i < numDocs; i++) {
                if (randomBoolean()) {
                    String delId = Integer.toString(i);
                    engine.delete(new Engine.Delete("test", delId, newUid(delId), primaryTerm.get()));
                }
                if (rarely()) {
                    engine.flush();
                }
            }
            Engine.Searcher external = readOnlyEngine.acquireSearcher("test", Engine.SearcherScope.EXTERNAL);
            Engine.Searcher internal = readOnlyEngine.acquireSearcher("test", Engine.SearcherScope.INTERNAL);
            assertSame(external.getIndexReader(), internal.getIndexReader());
            assertThat(external.getIndexReader(), instanceOf(DirectoryReader.class));
            DirectoryReader dirReader = external.getDirectoryReader();
            OpenSearchDirectoryReader esReader = getOpenSearchDirectoryReader(dirReader);
            IndexReader.CacheHelper helper = esReader.getReaderCacheHelper();
            assertNotNull(helper);
            assertEquals(helper.getKey(), dirReader.getReaderCacheHelper().getKey());
            IOUtils.close(external, internal);
            // the locked down engine should still point to the previous commit
            assertThat(readOnlyEngine.getPersistedLocalCheckpoint(), equalTo(lastSeqNoStats.getLocalCheckpoint()));
            assertThat(readOnlyEngine.getSeqNoStats(globalCheckpoint.get()).getMaxSeqNo(), equalTo(lastSeqNoStats.getMaxSeqNo()));
            assertThat(getDocIds(readOnlyEngine, false), equalTo(lastDocIds));
            try (Engine.GetResult getResult = readOnlyEngine.get(get, readOnlyEngine::acquireSearcher)) {
                assertTrue(getResult.exists());
            }
        }
        // Close and reopen the main engine
        try (InternalEngine recoveringEngine = new InternalEngine(config)) {
            recoveringEngine.recoverFromTranslog(translogHandler, Long.MAX_VALUE);
            // the locked down engine should still point to the previous commit
            assertThat(readOnlyEngine.getPersistedLocalCheckpoint(), equalTo(lastSeqNoStats.getLocalCheckpoint()));
            assertThat(readOnlyEngine.getSeqNoStats(globalCheckpoint.get()).getMaxSeqNo(), equalTo(lastSeqNoStats.getMaxSeqNo()));
            assertThat(getDocIds(readOnlyEngine, false), equalTo(lastDocIds));
        }
    } finally {
        IOUtils.close(readOnlyEngine);
    }
}

Example 4 with OpenSearchDirectoryReader

use of org.opensearch.common.lucene.index.OpenSearchDirectoryReader in project OpenSearch by opensearch-project.

the class ShardUtilsTests method testExtractShardId.

public void testExtractShardId() throws IOException {
    BaseDirectoryWrapper dir = newDirectory();
    IndexWriter writer = new IndexWriter(dir, newIndexWriterConfig());
    writer.commit();
    ShardId id = new ShardId("foo", "_na_", random().nextInt());
    try (DirectoryReader reader = DirectoryReader.open(writer)) {
        OpenSearchDirectoryReader wrap = OpenSearchDirectoryReader.wrap(reader, id);
        assertEquals(id, ShardUtils.extractShardId(wrap));
    }
    final int numDocs = 1 + random().nextInt(5);
    for (int i = 0; i < numDocs; i++) {
        Document d = new Document();
        d.add(newField("name", "foobar", StringField.TYPE_STORED));
        writer.addDocument(d);
        if (random().nextBoolean()) {
            writer.commit();
        }
    }
    try (DirectoryReader reader = DirectoryReader.open(writer)) {
        OpenSearchDirectoryReader wrap = OpenSearchDirectoryReader.wrap(reader, id);
        assertEquals(id, ShardUtils.extractShardId(wrap));
        CompositeReaderContext context = wrap.getContext();
        for (LeafReaderContext leaf : context.leaves()) {
            assertEquals(id, ShardUtils.extractShardId(leaf.reader()));
        }
    }
    IOUtils.close(writer, dir);
}

Example 5 with OpenSearchDirectoryReader

use of org.opensearch.common.lucene.index.OpenSearchDirectoryReader in project OpenSearch by opensearch-project.

the class InternalEngine method createReaderManager.

private ExternalReaderManager createReaderManager(RefreshWarmerListener externalRefreshListener) throws EngineException {
    boolean success = false;
    OpenSearchReaderManager internalReaderManager = null;
    try {
        try {
            final OpenSearchDirectoryReader directoryReader = OpenSearchDirectoryReader.wrap(DirectoryReader.open(indexWriter), shardId);
            internalReaderManager = new OpenSearchReaderManager(directoryReader);
            lastCommittedSegmentInfos = store.readLastCommittedSegmentsInfo();
            ExternalReaderManager externalReaderManager = new ExternalReaderManager(internalReaderManager, externalRefreshListener);
            success = true;
            return externalReaderManager;
        } catch (IOException e) {
            maybeFailEngine("start", e);
            try {
                indexWriter.rollback();
            } catch (IOException inner) {
                // iw is closed below
                e.addSuppressed(inner);
            }
            throw new EngineCreationFailureException(shardId, "failed to open reader on writer", e);
        }
    } finally {
        if (success == false) {
            // release everything we created on a failure
            IOUtils.closeWhileHandlingException(internalReaderManager, indexWriter);
        }
    }
}