Examples with LatchedActionListener org.elasticsearch.action.LatchedActionListener used on opensource projects

Example 1 with LatchedActionListener

use of org.elasticsearch.action.LatchedActionListener in project crate by crate.

the class RecoverySourceHandlerTests method testCancelRecoveryDuringPhase1.

@Test
public void testCancelRecoveryDuringPhase1() throws Exception {
    Store store = newStore(createTempDir("source"), false);
    IndexShard shard = mock(IndexShard.class);
    when(shard.store()).thenReturn(store);
    Directory dir = store.directory();
    RandomIndexWriter writer = new RandomIndexWriter(random(), dir, newIndexWriterConfig());
    int numDocs = randomIntBetween(10, 100);
    for (int i = 0; i < numDocs; i++) {
        Document document = new Document();
        document.add(new StringField("id", Integer.toString(i), Field.Store.YES));
        document.add(newField("field", randomUnicodeOfCodepointLengthBetween(1, 10), TextField.TYPE_STORED));
        writer.addDocument(document);
    }
    writer.commit();
    writer.close();
    AtomicBoolean wasCancelled = new AtomicBoolean();
    SetOnce<Runnable> cancelRecovery = new SetOnce<>();
    final TestRecoveryTargetHandler recoveryTarget = new TestRecoveryTargetHandler() {

        @Override
        public void receiveFileInfo(List<String> phase1FileNames, List<Long> phase1FileSizes, List<String> phase1ExistingFileNames, List<Long> phase1ExistingFileSizes, int totalTranslogOps, ActionListener<Void> listener) {
            recoveryExecutor.execute(() -> listener.onResponse(null));
            if (randomBoolean()) {
                wasCancelled.set(true);
                cancelRecovery.get().run();
            }
        }

        @Override
        public void writeFileChunk(StoreFileMetadata md, long position, BytesReference content, boolean lastChunk, int totalTranslogOps, ActionListener<Void> listener) {
            recoveryExecutor.execute(() -> listener.onResponse(null));
            if (rarely()) {
                wasCancelled.set(true);
                cancelRecovery.get().run();
            }
        }

        @Override
        public void cleanFiles(int totalTranslogOps, long globalCheckpoint, Store.MetadataSnapshot sourceMetadata, ActionListener<Void> listener) {
            recoveryExecutor.execute(() -> listener.onResponse(null));
            if (randomBoolean()) {
                wasCancelled.set(true);
                cancelRecovery.get().run();
            }
        }
    };
    StartRecoveryRequest startRecoveryRequest = getStartRecoveryRequest();
    final RecoverySourceHandler handler = new RecoverySourceHandler(shard, recoveryTarget, threadPool, startRecoveryRequest, between(1, 16), between(1, 4), between(1, 4)) {

        @Override
        void createRetentionLease(long startingSeqNo, ActionListener<RetentionLease> listener) {
            final String leaseId = ReplicationTracker.getPeerRecoveryRetentionLeaseId(startRecoveryRequest.targetNode().getId());
            listener.onResponse(new RetentionLease(leaseId, startingSeqNo, threadPool.absoluteTimeInMillis(), ReplicationTracker.PEER_RECOVERY_RETENTION_LEASE_SOURCE));
        }
    };
    cancelRecovery.set(() -> handler.cancel("test"));
    final StepListener<RecoverySourceHandler.SendFileResult> phase1Listener = new StepListener<>();
    try {
        final CountDownLatch latch = new CountDownLatch(1);
        handler.phase1(DirectoryReader.listCommits(dir).get(0), 0, () -> 0, new LatchedActionListener<>(phase1Listener, latch));
        latch.await();
        phase1Listener.result();
    } catch (Exception e) {
        assertTrue(wasCancelled.get());
        assertNotNull(ExceptionsHelper.unwrap(e, CancellableThreads.ExecutionCancelledException.class));
    }
    store.close();
}

Example 2 with LatchedActionListener

use of org.elasticsearch.action.LatchedActionListener in project crate by crate.

the class RecoverySourceHandlerTests method testSendFileChunksStopOnError.

@Test
public void testSendFileChunksStopOnError() throws Exception {
    final List<FileChunkResponse> unrepliedChunks = new CopyOnWriteArrayList<>();
    final AtomicInteger sentChunks = new AtomicInteger();
    final TestRecoveryTargetHandler recoveryTarget = new TestRecoveryTargetHandler() {

        final AtomicLong chunkNumberGenerator = new AtomicLong();

        @Override
        public void writeFileChunk(StoreFileMetadata md, long position, BytesReference content, boolean lastChunk, int totalTranslogOps, ActionListener<Void> listener) {
            final long chunkNumber = chunkNumberGenerator.getAndIncrement();
            logger.info("--> write chunk name={} seq={}, position={}", md.name(), chunkNumber, position);
            unrepliedChunks.add(new FileChunkResponse(chunkNumber, listener));
            sentChunks.incrementAndGet();
        }
    };
    final int maxConcurrentChunks = between(1, 4);
    final int chunkSize = between(1, 16);
    final RecoverySourceHandler handler = new RecoverySourceHandler(null, new AsyncRecoveryTarget(recoveryTarget, recoveryExecutor), threadPool, getStartRecoveryRequest(), chunkSize, maxConcurrentChunks, between(1, 5));
    Store store = newStore(createTempDir(), false);
    List<StoreFileMetadata> files = generateFiles(store, between(1, 10), () -> between(1, chunkSize * 20));
    int totalChunks = files.stream().mapToInt(md -> ((int) md.length() + chunkSize - 1) / chunkSize).sum();
    SetOnce<Exception> sendFilesError = new SetOnce<>();
    CountDownLatch sendFilesLatch = new CountDownLatch(1);
    handler.sendFiles(store, files.toArray(new StoreFileMetadata[0]), () -> 0, new LatchedActionListener<>(ActionListener.wrap(r -> sendFilesError.set(null), e -> sendFilesError.set(e)), sendFilesLatch));
    assertBusy(() -> assertThat(sentChunks.get(), equalTo(Math.min(totalChunks, maxConcurrentChunks))));
    List<FileChunkResponse> failedChunks = randomSubsetOf(between(1, unrepliedChunks.size()), unrepliedChunks);
    CountDownLatch replyLatch = new CountDownLatch(failedChunks.size());
    failedChunks.forEach(c -> {
        c.listener.onFailure(new IllegalStateException("test chunk exception"));
        replyLatch.countDown();
    });
    replyLatch.await();
    unrepliedChunks.removeAll(failedChunks);
    unrepliedChunks.forEach(c -> {
        if (randomBoolean()) {
            c.listener.onFailure(new RuntimeException("test"));
        } else {
            c.listener.onResponse(null);
        }
    });
    sendFilesLatch.await();
    assertThat(sendFilesError.get(), instanceOf(IllegalStateException.class));
    assertThat(sendFilesError.get().getMessage(), containsString("test chunk exception"));
    assertThat("no more chunks should be sent", sentChunks.get(), equalTo(Math.min(totalChunks, maxConcurrentChunks)));
    store.close();
}

Example 3 with LatchedActionListener

use of org.elasticsearch.action.LatchedActionListener in project crate by crate.

the class RecoverySourceHandlerTests method testHandleCorruptedIndexOnSendSendFiles.

@Test
public void testHandleCorruptedIndexOnSendSendFiles() throws Throwable {
    Settings settings = Settings.builder().put("indices.recovery.concurrent_streams", 1).put("indices.recovery.concurrent_small_file_streams", 1).build();
    final RecoverySettings recoverySettings = new RecoverySettings(settings, service);
    final StartRecoveryRequest request = getStartRecoveryRequest();
    Path tempDir = createTempDir();
    Store store = newStore(tempDir, false);
    AtomicBoolean failedEngine = new AtomicBoolean(false);
    Directory dir = store.directory();
    RandomIndexWriter writer = new RandomIndexWriter(random(), dir, newIndexWriterConfig());
    int numDocs = randomIntBetween(10, 100);
    for (int i = 0; i < numDocs; i++) {
        Document document = new Document();
        document.add(new StringField("id", Integer.toString(i), Field.Store.YES));
        document.add(newField("field", randomUnicodeOfCodepointLengthBetween(1, 10), TextField.TYPE_STORED));
        writer.addDocument(document);
    }
    writer.commit();
    writer.close();
    Store.MetadataSnapshot metadata = store.getMetadata(null);
    List<StoreFileMetadata> metas = new ArrayList<>();
    for (StoreFileMetadata md : metadata) {
        metas.add(md);
    }
    CorruptionUtils.corruptFile(random(), FileSystemUtils.files(tempDir, (p) -> (p.getFileName().toString().equals("write.lock") || p.getFileName().toString().startsWith("extra")) == false));
    Store targetStore = newStore(createTempDir(), false);
    MultiFileWriter multiFileWriter = new MultiFileWriter(targetStore, mock(RecoveryState.Index.class), "", logger, () -> {
    });
    RecoveryTargetHandler target = new TestRecoveryTargetHandler() {

        @Override
        public void writeFileChunk(StoreFileMetadata md, long position, BytesReference content, boolean lastChunk, int totalTranslogOps, ActionListener<Void> listener) {
            ActionListener.completeWith(listener, () -> {
                multiFileWriter.writeFileChunk(md, position, content, lastChunk);
                return null;
            });
        }
    };
    RecoverySourceHandler handler = new RecoverySourceHandler(null, new AsyncRecoveryTarget(target, recoveryExecutor), threadPool, request, Math.toIntExact(recoverySettings.getChunkSize().getBytes()), between(1, 8), between(1, 8)) {

        @Override
        protected void failEngine(IOException cause) {
            assertFalse(failedEngine.get());
            failedEngine.set(true);
        }
    };
    SetOnce<Exception> sendFilesError = new SetOnce<>();
    CountDownLatch latch = new CountDownLatch(1);
    handler.sendFiles(store, metas.toArray(new StoreFileMetadata[0]), () -> 0, new LatchedActionListener<>(ActionListener.wrap(r -> sendFilesError.set(null), e -> sendFilesError.set(e)), latch));
    latch.await();
    assertThat(sendFilesError.get(), instanceOf(IOException.class));
    assertNotNull(ExceptionsHelper.unwrapCorruption(sendFilesError.get()));
    assertTrue(failedEngine.get());
    // ensure all chunk requests have been completed; otherwise some files on the target are left open.
    IOUtils.close(() -> terminate(threadPool), () -> threadPool = null);
    IOUtils.close(store, multiFileWriter, targetStore);
}