Examples with BlobStoreService org.apache.flink.runtime.blob.BlobStoreService used on opensource projects

Example 6 with BlobStoreService

use of org.apache.flink.runtime.blob.BlobStoreService in project flink by apache.

the class BlobLibraryCacheRecoveryITCase method testRecoveryRegisterAndDownload.

/**
 * Tests that with {@link HighAvailabilityMode#ZOOKEEPER} distributed JARs are recoverable from
 * any participating BlobLibraryCacheManager.
 */
@Test
public void testRecoveryRegisterAndDownload() throws Exception {
    Random rand = new Random();
    BlobServer[] server = new BlobServer[2];
    InetSocketAddress[] serverAddress = new InetSocketAddress[2];
    BlobLibraryCacheManager[] libServer = new BlobLibraryCacheManager[2];
    PermanentBlobCache cache = null;
    BlobStoreService blobStoreService = null;
    Configuration config = new Configuration();
    config.setString(HighAvailabilityOptions.HA_MODE, "ZOOKEEPER");
    config.setString(HighAvailabilityOptions.HA_STORAGE_PATH, temporaryFolder.newFolder().getAbsolutePath());
    config.setLong(BlobServerOptions.CLEANUP_INTERVAL, 3_600L);
    final ExecutorService executorService = Executors.newSingleThreadExecutor();
    try {
        blobStoreService = BlobUtils.createBlobStoreFromConfig(config);
        final BlobLibraryCacheManager.ClassLoaderFactory classLoaderFactory = BlobLibraryCacheManager.defaultClassLoaderFactory(FlinkUserCodeClassLoaders.ResolveOrder.CHILD_FIRST, new String[0], null, true);
        for (int i = 0; i < server.length; i++) {
            server[i] = new BlobServer(config, temporaryFolder.newFolder(), blobStoreService);
            server[i].start();
            serverAddress[i] = new InetSocketAddress("localhost", server[i].getPort());
            libServer[i] = new BlobLibraryCacheManager(server[i], classLoaderFactory);
        }
        // Random data
        byte[] expected = new byte[1024];
        rand.nextBytes(expected);
        ArrayList<PermanentBlobKey> keys = new ArrayList<>(2);
        JobID jobId = new JobID();
        // Upload some data (libraries)
        // Request 1
        keys.add(server[0].putPermanent(jobId, expected));
        byte[] expected2 = Arrays.copyOfRange(expected, 32, 288);
        // Request 2
        keys.add(server[0].putPermanent(jobId, expected2));
        // The cache
        cache = new PermanentBlobCache(config, temporaryFolder.newFolder(), blobStoreService, serverAddress[0]);
        // Register uploaded libraries
        final LibraryCacheManager.ClassLoaderLease classLoaderLease = libServer[0].registerClassLoaderLease(jobId);
        classLoaderLease.getOrResolveClassLoader(keys, Collections.emptyList());
        // Verify key 1
        File f = cache.getFile(jobId, keys.get(0));
        assertEquals(expected.length, f.length());
        try (FileInputStream fis = new FileInputStream(f)) {
            for (int i = 0; i < expected.length && fis.available() > 0; i++) {
                assertEquals(expected[i], (byte) fis.read());
            }
            assertEquals(0, fis.available());
        }
        // Shutdown cache and start with other server
        cache.close();
        cache = new PermanentBlobCache(config, temporaryFolder.newFolder(), blobStoreService, serverAddress[1]);
        // Verify key 1
        f = cache.getFile(jobId, keys.get(0));
        assertEquals(expected.length, f.length());
        try (FileInputStream fis = new FileInputStream(f)) {
            for (int i = 0; i < expected.length && fis.available() > 0; i++) {
                assertEquals(expected[i], (byte) fis.read());
            }
            assertEquals(0, fis.available());
        }
        // Verify key 2
        f = cache.getFile(jobId, keys.get(1));
        assertEquals(expected2.length, f.length());
        try (FileInputStream fis = new FileInputStream(f)) {
            for (int i = 0; i < 256 && fis.available() > 0; i++) {
                assertEquals(expected2[i], (byte) fis.read());
            }
            assertEquals(0, fis.available());
        }
        // Remove blobs again
        server[1].globalCleanupAsync(jobId, executorService).join();
        // Verify everything is clean below recoveryDir/<cluster_id>
        final String clusterId = config.getString(HighAvailabilityOptions.HA_CLUSTER_ID);
        String haBlobStorePath = config.getString(HighAvailabilityOptions.HA_STORAGE_PATH);
        File haBlobStoreDir = new File(haBlobStorePath, clusterId);
        File[] recoveryFiles = haBlobStoreDir.listFiles();
        assertNotNull("HA storage directory does not exist", recoveryFiles);
        assertEquals("Unclean state backend: " + Arrays.toString(recoveryFiles), 0, recoveryFiles.length);
    } finally {
        assertThat(executorService.shutdownNow(), IsEmptyCollection.empty());
        for (BlobLibraryCacheManager s : libServer) {
            if (s != null) {
                s.shutdown();
            }
        }
        for (BlobServer s : server) {
            if (s != null) {
                s.close();
            }
        }
        if (cache != null) {
            cache.close();
        }
        if (blobStoreService != null) {
            blobStoreService.closeAndCleanupAllData();
        }
    }
}