Examples with UNASSIGNED_SEQ_NO org.elasticsearch.index.seqno.SequenceNumbers.UNASSIGNED_SEQ_NO used on opensource projects

Example 6 with UNASSIGNED_SEQ_NO

use of org.elasticsearch.index.seqno.SequenceNumbers.UNASSIGNED_SEQ_NO in project crate by crate.

the class InternalEngineTests method assertOpsOnPrimary.

private int assertOpsOnPrimary(List<Engine.Operation> ops, long currentOpVersion, boolean docDeleted, InternalEngine engine) throws IOException {
    String lastFieldValue = null;
    int opsPerformed = 0;
    long lastOpVersion = currentOpVersion;
    long lastOpSeqNo = UNASSIGNED_SEQ_NO;
    long lastOpTerm = UNASSIGNED_PRIMARY_TERM;
    PrimaryTermSupplier currentTerm = (PrimaryTermSupplier) engine.engineConfig.getPrimaryTermSupplier();
    BiFunction<Long, Engine.Index, Engine.Index> indexWithVersion = (version, index) -> new Engine.Index(index.uid(), index.parsedDoc(), UNASSIGNED_SEQ_NO, currentTerm.get(), version, index.versionType(), index.origin(), index.startTime(), index.getAutoGeneratedIdTimestamp(), index.isRetry(), UNASSIGNED_SEQ_NO, 0);
    BiFunction<Long, Engine.Delete, Engine.Delete> delWithVersion = (version, delete) -> new Engine.Delete(delete.id(), delete.uid(), UNASSIGNED_SEQ_NO, currentTerm.get(), version, delete.versionType(), delete.origin(), delete.startTime(), UNASSIGNED_SEQ_NO, 0);
    TriFunction<Long, Long, Engine.Index, Engine.Index> indexWithSeq = (seqNo, term, index) -> new Engine.Index(index.uid(), index.parsedDoc(), UNASSIGNED_SEQ_NO, currentTerm.get(), index.version(), index.versionType(), index.origin(), index.startTime(), index.getAutoGeneratedIdTimestamp(), index.isRetry(), seqNo, term);
    TriFunction<Long, Long, Engine.Delete, Engine.Delete> delWithSeq = (seqNo, term, delete) -> new Engine.Delete(delete.id(), delete.uid(), UNASSIGNED_SEQ_NO, currentTerm.get(), delete.version(), delete.versionType(), delete.origin(), delete.startTime(), seqNo, term);
    Function<Engine.Index, Engine.Index> indexWithCurrentTerm = index -> new Engine.Index(index.uid(), index.parsedDoc(), UNASSIGNED_SEQ_NO, currentTerm.get(), index.version(), index.versionType(), index.origin(), index.startTime(), index.getAutoGeneratedIdTimestamp(), index.isRetry(), index.getIfSeqNo(), index.getIfPrimaryTerm());
    Function<Engine.Delete, Engine.Delete> deleteWithCurrentTerm = delete -> new Engine.Delete(delete.id(), delete.uid(), UNASSIGNED_SEQ_NO, currentTerm.get(), delete.version(), delete.versionType(), delete.origin(), delete.startTime(), delete.getIfSeqNo(), delete.getIfPrimaryTerm());
    for (Engine.Operation op : ops) {
        final boolean versionConflict = rarely();
        final boolean versionedOp = versionConflict || randomBoolean();
        final long conflictingVersion = docDeleted || randomBoolean() ? lastOpVersion + (randomBoolean() ? 1 : -1) : Versions.MATCH_DELETED;
        final long conflictingSeqNo = lastOpSeqNo == UNASSIGNED_SEQ_NO || randomBoolean() ? // use 5 to go above 0 for magic numbers
        lastOpSeqNo + 5 : lastOpSeqNo;
        final long conflictingTerm = conflictingSeqNo == lastOpSeqNo || randomBoolean() ? lastOpTerm + 1 : lastOpTerm;
        if (rarely()) {
            currentTerm.set(currentTerm.get() + 1L);
            engine.rollTranslogGeneration();
        }
        final long correctVersion = docDeleted ? Versions.MATCH_DELETED : lastOpVersion;
        logger.info("performing [{}]{}{}", op.operationType().name().charAt(0), versionConflict ? " (conflict " + conflictingVersion + ")" : "", versionedOp ? " (versioned " + correctVersion + ", seqNo " + lastOpSeqNo + ", term " + lastOpTerm + " )" : "");
        if (op instanceof Engine.Index) {
            final Engine.Index index = (Engine.Index) op;
            if (versionConflict) {
                // generate a conflict
                final Engine.IndexResult result;
                if (randomBoolean()) {
                    result = engine.index(indexWithSeq.apply(conflictingSeqNo, conflictingTerm, index));
                } else {
                    result = engine.index(indexWithVersion.apply(conflictingVersion, index));
                }
                assertThat(result.isCreated(), equalTo(false));
                assertThat(result.getVersion(), equalTo(lastOpVersion));
                assertThat(result.getResultType(), equalTo(Engine.Result.Type.FAILURE));
                assertThat(result.getFailure(), instanceOf(VersionConflictEngineException.class));
            } else {
                final Engine.IndexResult result;
                if (versionedOp) {
                    // TODO: add support for non-existing docs
                    if (randomBoolean() && lastOpSeqNo != SequenceNumbers.UNASSIGNED_SEQ_NO && docDeleted == false) {
                        result = engine.index(indexWithSeq.apply(lastOpSeqNo, lastOpTerm, index));
                    } else {
                        result = engine.index(indexWithVersion.apply(correctVersion, index));
                    }
                } else {
                    result = engine.index(indexWithCurrentTerm.apply(index));
                }
                assertThat(result.isCreated(), equalTo(docDeleted));
                assertThat(result.getVersion(), equalTo(Math.max(lastOpVersion + 1, 1)));
                assertThat(result.getResultType(), equalTo(Engine.Result.Type.SUCCESS));
                assertThat(result.getFailure(), nullValue());
                lastFieldValue = index.docs().get(0).get("value");
                docDeleted = false;
                lastOpVersion = result.getVersion();
                lastOpSeqNo = result.getSeqNo();
                lastOpTerm = result.getTerm();
                opsPerformed++;
            }
        } else {
            final Engine.Delete delete = (Engine.Delete) op;
            if (versionConflict) {
                // generate a conflict
                Engine.DeleteResult result;
                if (randomBoolean()) {
                    result = engine.delete(delWithSeq.apply(conflictingSeqNo, conflictingTerm, delete));
                } else {
                    result = engine.delete(delWithVersion.apply(conflictingVersion, delete));
                }
                assertThat(result.isFound(), equalTo(docDeleted == false));
                assertThat(result.getVersion(), equalTo(lastOpVersion));
                assertThat(result.getResultType(), equalTo(Engine.Result.Type.FAILURE));
                assertThat(result.getFailure(), instanceOf(VersionConflictEngineException.class));
            } else {
                final Engine.DeleteResult result;
                long correctSeqNo = docDeleted ? UNASSIGNED_SEQ_NO : lastOpSeqNo;
                if (versionedOp && lastOpSeqNo != UNASSIGNED_SEQ_NO && randomBoolean()) {
                    result = engine.delete(delWithSeq.apply(correctSeqNo, lastOpTerm, delete));
                } else if (versionedOp) {
                    result = engine.delete(delWithVersion.apply(correctVersion, delete));
                } else {
                    result = engine.delete(deleteWithCurrentTerm.apply(delete));
                }
                assertThat(result.isFound(), equalTo(docDeleted == false));
                assertThat(result.getVersion(), equalTo(Math.max(lastOpVersion + 1, 1)));
                assertThat(result.getResultType(), equalTo(Engine.Result.Type.SUCCESS));
                assertThat(result.getFailure(), nullValue());
                docDeleted = true;
                lastOpVersion = result.getVersion();
                lastOpSeqNo = result.getSeqNo();
                lastOpTerm = result.getTerm();
                opsPerformed++;
            }
        }
        if (randomBoolean()) {
            // refresh and take the chance to check everything is ok so far
            assertVisibleCount(engine, docDeleted ? 0 : 1);
            // first op and it failed.
            if (docDeleted == false && lastFieldValue != null) {
                try (Searcher searcher = engine.acquireSearcher("test")) {
                    final TotalHitCountCollector collector = new TotalHitCountCollector();
                    searcher.search(new TermQuery(new Term("value", lastFieldValue)), collector);
                    assertThat(collector.getTotalHits(), equalTo(1));
                }
            }
        }
        if (randomBoolean()) {
            engine.flush();
            engine.refresh("test");
        }
        if (rarely()) {
            // simulate GC deletes
            engine.refresh("gc_simulation", Engine.SearcherScope.INTERNAL, true);
            engine.clearDeletedTombstones();
            if (docDeleted) {
                lastOpVersion = Versions.NOT_FOUND;
                lastOpSeqNo = UNASSIGNED_SEQ_NO;
                lastOpTerm = UNASSIGNED_PRIMARY_TERM;
            }
        }
    }
    assertVisibleCount(engine, docDeleted ? 0 : 1);
    if (docDeleted == false) {
        try (Searcher searcher = engine.acquireSearcher("test")) {
            final TotalHitCountCollector collector = new TotalHitCountCollector();
            searcher.search(new TermQuery(new Term("value", lastFieldValue)), collector);
            assertThat(collector.getTotalHits(), equalTo(1));
        }
    }
    return opsPerformed;
}

Example 7 with UNASSIGNED_SEQ_NO

use of org.elasticsearch.index.seqno.SequenceNumbers.UNASSIGNED_SEQ_NO in project crate by crate.

the class InternalEngineTests method testConcurrentGetAndSetOnPrimary.

@Test
public void testConcurrentGetAndSetOnPrimary() throws IOException, InterruptedException {
    Thread[] thread = new Thread[randomIntBetween(3, 5)];
    CountDownLatch startGun = new CountDownLatch(thread.length);
    final int opsPerThread = randomIntBetween(10, 20);
    class OpAndVersion {

        final long version;

        final String removed;

        final String added;

        OpAndVersion(long version, String removed, String added) {
            this.version = version;
            this.removed = removed;
            this.added = added;
        }
    }
    final AtomicInteger idGenerator = new AtomicInteger();
    final Queue<OpAndVersion> history = ConcurrentCollections.newQueue();
    ParsedDocument doc = testParsedDocument("1", null, testDocument(), bytesArray(""), null);
    final Term uidTerm = newUid(doc);
    engine.index(indexForDoc(doc));
    final BiFunction<String, Engine.SearcherScope, Searcher> searcherFactory = engine::acquireSearcher;
    for (int i = 0; i < thread.length; i++) {
        thread[i] = new Thread(() -> {
            startGun.countDown();
            try {
                startGun.await();
            } catch (InterruptedException e) {
                throw new AssertionError(e);
            }
            for (int op = 0; op < opsPerThread; op++) {
                try (Engine.GetResult get = engine.get(new Engine.Get(doc.id(), uidTerm), searcherFactory)) {
                    FieldsVisitor visitor = new FieldsVisitor(true);
                    get.docIdAndVersion().reader.document(get.docIdAndVersion().docId, visitor);
                    List<String> values = new ArrayList<>(Strings.commaDelimitedListToSet(visitor.source().utf8ToString()));
                    String removed = op % 3 == 0 && values.size() > 0 ? values.remove(0) : null;
                    String added = "v_" + idGenerator.incrementAndGet();
                    values.add(added);
                    Engine.Index index = new Engine.Index(uidTerm, testParsedDocument("1", null, testDocument(), bytesArray(Strings.collectionToCommaDelimitedString(values)), null), UNASSIGNED_SEQ_NO, 2, get.docIdAndVersion().version, VersionType.INTERNAL, PRIMARY, System.currentTimeMillis(), -1, false, UNASSIGNED_SEQ_NO, 0);
                    Engine.IndexResult indexResult = engine.index(index);
                    if (indexResult.getResultType() == Engine.Result.Type.SUCCESS) {
                        history.add(new OpAndVersion(indexResult.getVersion(), removed, added));
                    }
                } catch (IOException e) {
                    throw new AssertionError(e);
                }
            }
        });
        thread[i].start();
    }
    for (int i = 0; i < thread.length; i++) {
        thread[i].join();
    }
    List<OpAndVersion> sortedHistory = new ArrayList<>(history);
    sortedHistory.sort(Comparator.comparing(o -> o.version));
    Set<String> currentValues = new HashSet<>();
    for (int i = 0; i < sortedHistory.size(); i++) {
        OpAndVersion op = sortedHistory.get(i);
        if (i > 0) {
            assertThat("duplicate version", op.version, not(equalTo(sortedHistory.get(i - 1).version)));
        }
        boolean exists = op.removed == null ? true : currentValues.remove(op.removed);
        assertTrue(op.removed + " should exist", exists);
        exists = currentValues.add(op.added);
        assertTrue(op.added + " should not exist", exists);
    }
    try (Engine.GetResult get = engine.get(new Engine.Get(doc.id(), uidTerm), searcherFactory)) {
        FieldsVisitor visitor = new FieldsVisitor(true);
        get.docIdAndVersion().reader.document(get.docIdAndVersion().docId, visitor);
        List<String> values = Arrays.asList(Strings.commaDelimitedListToStringArray(visitor.source().utf8ToString()));
        assertThat(currentValues, equalTo(new HashSet<>(values)));
    }
}

Example 8 with UNASSIGNED_SEQ_NO

use of org.elasticsearch.index.seqno.SequenceNumbers.UNASSIGNED_SEQ_NO in project crate by crate.

the class InternalEngineTests method testTreatDocumentFailureAsFatalError.

@Test
public void testTreatDocumentFailureAsFatalError() throws Exception {
    AtomicReference<IOException> addDocException = new AtomicReference<>();
    IndexWriterFactory indexWriterFactory = (dir, iwc) -> new IndexWriter(dir, iwc) {

        @Override
        public long addDocument(Iterable<? extends IndexableField> doc) throws IOException {
            final IOException ex = addDocException.getAndSet(null);
            if (ex != null) {
                throw ex;
            }
            return super.addDocument(doc);
        }
    };
    try (Store store = createStore();
        InternalEngine engine = createEngine(defaultSettings, store, createTempDir(), NoMergePolicy.INSTANCE, indexWriterFactory)) {
        final ParsedDocument doc = testParsedDocument("1", null, testDocumentWithTextField(), SOURCE, null);
        Engine.Operation.Origin origin = randomFrom(REPLICA, LOCAL_RESET, PEER_RECOVERY);
        Engine.Index index = new Engine.Index(newUid(doc), doc, randomNonNegativeLong(), primaryTerm.get(), randomNonNegativeLong(), null, origin, System.nanoTime(), -1, false, UNASSIGNED_SEQ_NO, UNASSIGNED_PRIMARY_TERM);
        addDocException.set(new IOException("simulated"));
        expectThrows(IOException.class, () -> engine.index(index));
        assertTrue(engine.isClosed.get());
        assertNotNull(engine.failedEngine.get());
    }
}

Example 9 with UNASSIGNED_SEQ_NO

use of org.elasticsearch.index.seqno.SequenceNumbers.UNASSIGNED_SEQ_NO in project crate by crate.

the class InternalEngineTests method testTrimUnsafeCommits.

@Test
public void testTrimUnsafeCommits() throws Exception {
    final AtomicLong globalCheckpoint = new AtomicLong(SequenceNumbers.NO_OPS_PERFORMED);
    final int maxSeqNo = 40;
    final List<Long> seqNos = LongStream.rangeClosed(0, maxSeqNo).boxed().collect(Collectors.toList());
    Collections.shuffle(seqNos, random());
    try (Store store = createStore()) {
        EngineConfig config = config(defaultSettings, store, createTempDir(), newMergePolicy(), null, null, globalCheckpoint::get);
        final List<Long> commitMaxSeqNo = new ArrayList<>();
        final long minTranslogGen;
        try (InternalEngine engine = createEngine(config)) {
            for (int i = 0; i < seqNos.size(); i++) {
                ParsedDocument doc = testParsedDocument(Long.toString(seqNos.get(i)), null, testDocument(), new BytesArray("{}"), null);
                Engine.Index index = new Engine.Index(newUid(doc), doc, seqNos.get(i), 0, 1, null, REPLICA, System.nanoTime(), -1, false, UNASSIGNED_SEQ_NO, 0);
                engine.index(index);
                if (randomBoolean()) {
                    engine.flush();
                    final Long maxSeqNoInCommit = seqNos.subList(0, i + 1).stream().max(Long::compareTo).orElse(-1L);
                    commitMaxSeqNo.add(maxSeqNoInCommit);
                }
            }
            globalCheckpoint.set(randomInt(maxSeqNo));
            engine.syncTranslog();
            minTranslogGen = engine.getTranslog().getMinFileGeneration();
        }
        store.trimUnsafeCommits(globalCheckpoint.get(), minTranslogGen, config.getIndexSettings().getIndexVersionCreated());
        long safeMaxSeqNo = commitMaxSeqNo.stream().filter(s -> s <= globalCheckpoint.get()).reduce(// get the last one.
        (s1, s2) -> s2).orElse(SequenceNumbers.NO_OPS_PERFORMED);
        final List<IndexCommit> commits = DirectoryReader.listCommits(store.directory());
        assertThat(commits, hasSize(1));
        assertThat(commits.get(0).getUserData().get(SequenceNumbers.MAX_SEQ_NO), equalTo(Long.toString(safeMaxSeqNo)));
        try (IndexReader reader = DirectoryReader.open(commits.get(0))) {
            for (LeafReaderContext context : reader.leaves()) {
                final NumericDocValues values = context.reader().getNumericDocValues(SeqNoFieldMapper.NAME);
                if (values != null) {
                    for (int docID = 0; docID < context.reader().maxDoc(); docID++) {
                        if (values.advanceExact(docID) == false) {
                            throw new AssertionError("Document does not have a seq number: " + docID);
                        }
                        assertThat(values.longValue(), lessThanOrEqualTo(globalCheckpoint.get()));
                    }
                }
            }
        }
    }
}