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

Example 21 with PermanentBlobCache

use of org.apache.flink.runtime.blob.PermanentBlobCache in project flink by splunk.

the class BlobLibraryCacheManagerTest method testLibraryCacheManagerDifferentJobsCleanup.

/**
 * Tests that the {@link BlobLibraryCacheManager} cleans up after the class loader leases for
 * different jobs are closed.
 */
@Test
public void testLibraryCacheManagerDifferentJobsCleanup() throws Exception {
    JobID jobId1 = new JobID();
    JobID jobId2 = new JobID();
    List<PermanentBlobKey> keys1 = new ArrayList<>();
    List<PermanentBlobKey> keys2 = new ArrayList<>();
    BlobServer server = null;
    PermanentBlobCache cache = null;
    BlobLibraryCacheManager libCache = null;
    final byte[] buf = new byte[128];
    try {
        Configuration config = new Configuration();
        config.setLong(BlobServerOptions.CLEANUP_INTERVAL, 1L);
        server = new BlobServer(config, temporaryFolder.newFolder(), new VoidBlobStore());
        server.start();
        InetSocketAddress serverAddress = new InetSocketAddress("localhost", server.getPort());
        cache = new PermanentBlobCache(config, temporaryFolder.newFolder(), new VoidBlobStore(), serverAddress);
        keys1.add(server.putPermanent(jobId1, buf));
        buf[0] += 1;
        keys1.add(server.putPermanent(jobId1, buf));
        keys2.add(server.putPermanent(jobId2, buf));
        libCache = createBlobLibraryCacheManager(cache);
        cache.registerJob(jobId1);
        cache.registerJob(jobId2);
        assertEquals(0, libCache.getNumberOfManagedJobs());
        assertEquals(0, libCache.getNumberOfReferenceHolders(jobId1));
        checkFileCountForJob(2, jobId1, server);
        checkFileCountForJob(0, jobId1, cache);
        checkFileCountForJob(1, jobId2, server);
        checkFileCountForJob(0, jobId2, cache);
        final LibraryCacheManager.ClassLoaderLease classLoaderLeaseJob1 = libCache.registerClassLoaderLease(jobId1);
        final UserCodeClassLoader classLoader1 = classLoaderLeaseJob1.getOrResolveClassLoader(keys1, Collections.emptyList());
        assertEquals(1, libCache.getNumberOfManagedJobs());
        assertEquals(1, libCache.getNumberOfReferenceHolders(jobId1));
        assertEquals(0, libCache.getNumberOfReferenceHolders(jobId2));
        assertEquals(2, checkFilesExist(jobId1, keys1, cache, true));
        checkFileCountForJob(2, jobId1, server);
        checkFileCountForJob(2, jobId1, cache);
        assertEquals(0, checkFilesExist(jobId2, keys2, cache, false));
        checkFileCountForJob(1, jobId2, server);
        checkFileCountForJob(0, jobId2, cache);
        final LibraryCacheManager.ClassLoaderLease classLoaderLeaseJob2 = libCache.registerClassLoaderLease(jobId2);
        final UserCodeClassLoader classLoader2 = classLoaderLeaseJob2.getOrResolveClassLoader(keys2, Collections.emptyList());
        assertThat(classLoader1, not(sameInstance(classLoader2)));
        try {
            classLoaderLeaseJob2.getOrResolveClassLoader(keys1, Collections.<URL>emptyList());
            fail("Should fail with an IllegalStateException");
        } catch (IllegalStateException e) {
        // that's what we want
        }
        try {
            classLoaderLeaseJob2.getOrResolveClassLoader(keys2, Collections.singletonList(new URL("file:///tmp/does-not-exist")));
            fail("Should fail with an IllegalStateException");
        } catch (IllegalStateException e) {
        // that's what we want
        }
        assertEquals(2, libCache.getNumberOfManagedJobs());
        assertEquals(1, libCache.getNumberOfReferenceHolders(jobId1));
        assertEquals(1, libCache.getNumberOfReferenceHolders(jobId2));
        assertEquals(2, checkFilesExist(jobId1, keys1, cache, true));
        checkFileCountForJob(2, jobId1, server);
        checkFileCountForJob(2, jobId1, cache);
        assertEquals(1, checkFilesExist(jobId2, keys2, cache, true));
        checkFileCountForJob(1, jobId2, server);
        checkFileCountForJob(1, jobId2, cache);
        classLoaderLeaseJob1.release();
        assertEquals(1, libCache.getNumberOfManagedJobs());
        assertEquals(0, libCache.getNumberOfReferenceHolders(jobId1));
        assertEquals(1, libCache.getNumberOfReferenceHolders(jobId2));
        assertEquals(2, checkFilesExist(jobId1, keys1, cache, true));
        checkFileCountForJob(2, jobId1, server);
        checkFileCountForJob(2, jobId1, cache);
        assertEquals(1, checkFilesExist(jobId2, keys2, cache, true));
        checkFileCountForJob(1, jobId2, server);
        checkFileCountForJob(1, jobId2, cache);
        classLoaderLeaseJob2.release();
        assertEquals(0, libCache.getNumberOfManagedJobs());
        assertEquals(0, libCache.getNumberOfReferenceHolders(jobId1));
        assertEquals(0, libCache.getNumberOfReferenceHolders(jobId2));
        assertEquals(2, checkFilesExist(jobId1, keys1, cache, true));
        checkFileCountForJob(2, jobId1, server);
        checkFileCountForJob(2, jobId1, cache);
        assertEquals(1, checkFilesExist(jobId2, keys2, cache, true));
        checkFileCountForJob(1, jobId2, server);
        checkFileCountForJob(1, jobId2, cache);
    // only PermanentBlobCache#releaseJob() calls clean up files (tested in
    // BlobCacheCleanupTest etc.
    } finally {
        if (libCache != null) {
            libCache.shutdown();
        }
        // should have been closed by the libraryCacheManager, but just in case
        if (cache != null) {
            cache.close();
        }
        if (server != null) {
            server.close();
        }
    }
}