Examples with Registry org.apache.drill.exec.proto.UserBitShared.Registry used on opensource projects

Example 16 with Registry

use of org.apache.drill.exec.proto.UserBitShared.Registry in project drill by apache.

the class TestDynamicUDFSupport method testSuccessfulUnregistrationAfterSeveralRetryAttempts.

@Test
public void testSuccessfulUnregistrationAfterSeveralRetryAttempts() throws Exception {
    RemoteFunctionRegistry remoteFunctionRegistry = spyRemoteFunctionRegistry();
    copyDefaultJarsToStagingArea();
    test("create function using jar '%s'", defaultBinaryJar);
    reset(remoteFunctionRegistry);
    doThrow(new VersionMismatchException("Version mismatch detected", 1)).doThrow(new VersionMismatchException("Version mismatch detected", 1)).doCallRealMethod().when(remoteFunctionRegistry).updateRegistry(any(Registry.class), any(DataChangeVersion.class));
    String summary = "The following UDFs in jar %s have been unregistered:\n" + "[custom_lower(VARCHAR-REQUIRED)]";
    testBuilder().sqlQuery("drop function using jar '%s'", defaultBinaryJar).unOrdered().baselineColumns("ok", "summary").baselineValues(true, String.format(summary, defaultBinaryJar)).go();
    verify(remoteFunctionRegistry, times(3)).updateRegistry(any(Registry.class), any(DataChangeVersion.class));
    FileSystem fs = remoteFunctionRegistry.getFs();
    assertFalse("Registry area should be empty", fs.listFiles(remoteFunctionRegistry.getRegistryArea(), false).hasNext());
    assertEquals("Registry should be empty", remoteFunctionRegistry.getRegistry(new DataChangeVersion()).getJarList().size(), 0);
}

Example 17 with Registry

use of org.apache.drill.exec.proto.UserBitShared.Registry in project drill by apache.

the class TestDynamicUDFSupport method testExceedRetryAttemptsDuringRegistration.

@Test
public void testExceedRetryAttemptsDuringRegistration() throws Exception {
    RemoteFunctionRegistry remoteFunctionRegistry = spyRemoteFunctionRegistry();
    Path registryPath = hadoopToJavaPath(remoteFunctionRegistry.getRegistryArea());
    Path stagingPath = hadoopToJavaPath(remoteFunctionRegistry.getStagingArea());
    Path tmpPath = hadoopToJavaPath(remoteFunctionRegistry.getTmpArea());
    copyDefaultJarsToStagingArea();
    doThrow(new VersionMismatchException("Version mismatch detected", 1)).when(remoteFunctionRegistry).updateRegistry(any(Registry.class), any(DataChangeVersion.class));
    String summary = "Failed to update remote function registry. Exceeded retry attempts limit.";
    testBuilder().sqlQuery("create function using jar '%s'", defaultBinaryJar).unOrdered().baselineColumns("ok", "summary").baselineValues(false, summary).go();
    verify(remoteFunctionRegistry, times(remoteFunctionRegistry.getRetryAttempts() + 1)).updateRegistry(any(Registry.class), any(DataChangeVersion.class));
    assertTrue("Binary should be present in staging area", stagingPath.resolve(defaultBinaryJar).toFile().exists());
    assertTrue("Source should be present in staging area", stagingPath.resolve(defaultSourceJar).toFile().exists());
    assertTrue("Registry area should be empty", ArrayUtils.isEmpty(registryPath.toFile().listFiles()));
    assertTrue("Temporary area should be empty", ArrayUtils.isEmpty(tmpPath.toFile().listFiles()));
    assertEquals("Registry should be empty", remoteFunctionRegistry.getRegistry(new DataChangeVersion()).getJarList().size(), 0);
}

Example 18 with Registry

use of org.apache.drill.exec.proto.UserBitShared.Registry in project drill by apache.

the class CreateFunctionHandler method initRemoteRegistration.

/**
 * Instantiates remote registration. First gets remote function registry with version.
 * Version is used to ensure that we update the same registry we validated against.
 * Then validates against list of remote jars.
 * If validation is successful, first copies jars to registry area and starts updating remote function registry.
 * If during update {@link VersionMismatchException} was detected,
 * attempts to repeat remote registration process till retry attempts exceeds the limit.
 * If retry attempts number hits 0, throws exception that failed to update remote function registry.
 * In case of any error, if jars have been already copied to registry area, they will be deleted.
 *
 * @param functions list of functions present in jar
 * @param jarManager helper class for copying jars to registry area
 * @param remoteRegistry remote function registry
 * @throws IOException in case of problems with copying jars to registry area
 */
private void initRemoteRegistration(List<String> functions, JarManager jarManager, RemoteFunctionRegistry remoteRegistry) throws IOException {
    int retryAttempts = remoteRegistry.getRetryAttempts();
    boolean copyJars = true;
    try {
        while (retryAttempts >= 0) {
            DataChangeVersion version = new DataChangeVersion();
            List<Jar> remoteJars = remoteRegistry.getRegistry(version).getJarList();
            validateAgainstRemoteRegistry(remoteJars, jarManager.getBinaryName(), functions);
            if (copyJars) {
                jarManager.copyToRegistryArea();
                copyJars = false;
            }
            List<Jar> jars = Lists.newArrayList(remoteJars);
            jars.add(Jar.newBuilder().setName(jarManager.getBinaryName()).addAllFunctionSignature(functions).build());
            Registry updatedRegistry = Registry.newBuilder().addAllJar(jars).build();
            try {
                remoteRegistry.updateRegistry(updatedRegistry, version);
                return;
            } catch (VersionMismatchException ex) {
                logger.debug("Failed to update function registry during registration, version mismatch was detected.", ex);
                retryAttempts--;
            }
        }
        throw new DrillRuntimeException("Failed to update remote function registry. Exceeded retry attempts limit.");
    } catch (Exception e) {
        if (!copyJars) {
            jarManager.deleteQuietlyFromRegistryArea();
        }
        throw e;
    }
}

Example 19 with Registry

use of org.apache.drill.exec.proto.UserBitShared.Registry in project drill by apache.

the class DropFunctionHandler method unregister.

/**
 * Gets remote function registry with version.
 * Version is used to ensure that we update the same registry we removed jars from.
 * Looks for a jar to be deleted, if founds one,
 * attempts to update remote registry with list of jars, that excludes jar to be deleted.
 * If during update {@link VersionMismatchException} was detected,
 * attempts to repeat unregistration process till retry attempts exceeds the limit.
 * If retry attempts number hits 0, throws exception that failed to update remote function registry.
 *
 * @param jarName jar name
 * @param remoteFunctionRegistry remote function registry
 * @return jar that was unregistered, null otherwise
 */
private Jar unregister(String jarName, RemoteFunctionRegistry remoteFunctionRegistry) {
    int retryAttempts = remoteFunctionRegistry.getRetryAttempts();
    while (retryAttempts >= 0) {
        DataChangeVersion version = new DataChangeVersion();
        Registry registry = remoteFunctionRegistry.getRegistry(version);
        Jar jarToBeDeleted = null;
        List<Jar> jars = Lists.newArrayList();
        for (Jar j : registry.getJarList()) {
            if (j.getName().equals(jarName)) {
                jarToBeDeleted = j;
            } else {
                jars.add(j);
            }
        }
        if (jarToBeDeleted == null) {
            return null;
        }
        Registry updatedRegistry = Registry.newBuilder().addAllJar(jars).build();
        try {
            remoteFunctionRegistry.updateRegistry(updatedRegistry, version);
            return jarToBeDeleted;
        } catch (VersionMismatchException ex) {
            logger.debug("Failed to update function registry during unregistration, version mismatch was detected.", ex);
            retryAttempts--;
        }
    }
    throw new DrillRuntimeException("Failed to update remote function registry. Exceeded retry attempts limit.");
}

Example 20 with Registry

use of org.apache.drill.exec.proto.UserBitShared.Registry in project drill by apache.

the class RemoteFunctionRegistry method prepareStores.

/**
 * Connects to three stores: REGISTRY, UNREGISTRATION, JARS.
 * Puts in REGISTRY store with default instance of remote function registry if store is initiated for the first time.
 * Registers unregistration listener in UNREGISTRATION store.
 */
private void prepareStores(PersistentStoreProvider storeProvider, ClusterCoordinator coordinator) {
    try {
        PersistentStoreConfig<Registry> registrationConfig = PersistentStoreConfig.newProtoBuilder(SchemaUserBitShared.Registry.WRITE, SchemaUserBitShared.Registry.MERGE).name("udf").persist().build();
        registry = storeProvider.getOrCreateVersionedStore(registrationConfig);
        logger.trace("Remote function registry type: {}.", registry.getClass());
        registry.putIfAbsent(REGISTRY_PATH, Registry.getDefaultInstance());
    } catch (StoreException e) {
        throw new DrillRuntimeException("Failure while loading remote registry.", e);
    }
    TransientStoreConfig<String> unregistrationConfig = TransientStoreConfig.newJacksonBuilder(mapper, String.class).name("udf/unregister").build();
    unregistration = coordinator.getOrCreateTransientStore(unregistrationConfig);
    unregistration.addListener(unregistrationListener);
    TransientStoreConfig<String> jarsConfig = TransientStoreConfig.newJacksonBuilder(mapper, String.class).name("udf/jars").build();
    jars = coordinator.getOrCreateTransientStore(jarsConfig);
}