[GitHub] [beam] pabloem commented on a change in pull request #15810: [BEAM-2791] Support low-latency StorageApi sink with no exactly-once guarantees

[GitBox <gi...@apache.org>]

pabloem commented on a change in pull request #15810:
URL: https://github.com/apache/beam/pull/15810#discussion_r741463763



##########
File path: sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/bigquery/BigQueryOptions.java
##########
@@ -85,6 +85,13 @@
 
   void setUseStorageWriteApi(Boolean value);
 
+  @Description(
+      "If set, then BigQueryIO.Write will default to using the approximate Storage Write API.")

Review comment:
       ```suggestion
         "If set, then BigQueryIO.Write will use the Storage Write API with lower latency and relaxed consistency guarantees.")
   ```
   Something like that?

##########
File path: sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/bigquery/StorageApiWriteRecordsInconsistent.java
##########
@@ -0,0 +1,265 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.beam.sdk.io.gcp.bigquery;
+
+import static org.apache.beam.vendor.guava.v26_0_jre.com.google.common.base.Preconditions.checkArgument;
+
+import com.google.api.services.bigquery.model.TableSchema;
+import com.google.cloud.bigquery.storage.v1beta2.AppendRowsResponse;
+import com.google.cloud.bigquery.storage.v1beta2.ProtoRows;
+import com.google.protobuf.Descriptors.Descriptor;
+import java.time.Instant;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Nullable;
+import org.apache.beam.sdk.coders.Coder;
+import org.apache.beam.sdk.io.gcp.bigquery.BigQueryIO.Write.CreateDisposition;
+import org.apache.beam.sdk.io.gcp.bigquery.BigQueryServices.DatasetService;
+import org.apache.beam.sdk.io.gcp.bigquery.BigQueryServices.StreamAppendClient;
+import org.apache.beam.sdk.io.gcp.bigquery.RetryManager.Operation.Context;
+import org.apache.beam.sdk.io.gcp.bigquery.RetryManager.RetryType;
+import org.apache.beam.sdk.io.gcp.bigquery.StorageApiDynamicDestinations.MessageConverter;
+import org.apache.beam.sdk.metrics.Counter;
+import org.apache.beam.sdk.metrics.Distribution;
+import org.apache.beam.sdk.metrics.Metrics;
+import org.apache.beam.sdk.options.PipelineOptions;
+import org.apache.beam.sdk.transforms.DoFn;
+import org.apache.beam.sdk.transforms.PTransform;
+import org.apache.beam.sdk.transforms.ParDo;
+import org.apache.beam.sdk.values.KV;
+import org.apache.beam.sdk.values.PCollection;
+import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.base.Supplier;
+import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.cache.Cache;
+import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.cache.CacheBuilder;
+import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.cache.RemovalNotification;
+import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.Iterables;
+import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.Lists;
+import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.Maps;
+import org.joda.time.Duration;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * A transform to write sharded records to BigQuery using the Storage API. This transform uses the
+ * default stream to write the records. Records written will show up in BigQuery immediately,
+ * however exactly once is not guaranteed - duplicates may appear in the output. For exactly-once
+ * writes, use {@link StorageApiWritesShardedRecords} or {@link StorageApiWriteUnshardedRecords}.
+ */
+@SuppressWarnings("FutureReturnValueIgnored")
+public class StorageApiWriteRecordsInconsistent<DestinationT, ElementT>
+    extends PTransform<PCollection<KV<DestinationT, byte[]>>, PCollection<Void>> {
+  private static final Logger LOG =
+      LoggerFactory.getLogger(StorageApiWriteRecordsInconsistent.class);
+
+  private final StorageApiDynamicDestinations<ElementT, DestinationT> dynamicDestinations;
+  private final CreateDisposition createDisposition;
+  private final String kmsKey;
+  private final BigQueryServices bqServices;
+  private final Coder<DestinationT> destinationCoder;
+  private static final ExecutorService closeWriterExecutor = Executors.newCachedThreadPool();
+
+  private static final Cache<String, StreamAppendClient> APPEND_CLIENTS =
+      CacheBuilder.newBuilder()
+          .expireAfterAccess(5, TimeUnit.MINUTES)
+          .removalListener(
+              (RemovalNotification<String, StreamAppendClient> removal) -> {
+                @Nullable final StreamAppendClient streamAppendClient = removal.getValue();
+                // Close the writer in a different thread so as not to block the main one.
+                runAsyncIgnoreFailure(closeWriterExecutor, streamAppendClient::close);
+              })
+          .build();
+
+  // Run a closure asynchronously, ignoring failures.
+  private interface ThrowingRunnable {
+    void run() throws Exception;
+  }
+
+  private static void runAsyncIgnoreFailure(ExecutorService executor, ThrowingRunnable task) {
+    executor.submit(
+        () -> {
+          try {
+            task.run();
+          } catch (Exception e) {
+            //
+          }
+        });
+  }
+
+  public StorageApiWriteRecordsInconsistent(
+      StorageApiDynamicDestinations<ElementT, DestinationT> dynamicDestinations,
+      CreateDisposition createDisposition,
+      String kmsKey,
+      BigQueryServices bqServices,
+      Coder<DestinationT> destinationCoder) {
+    this.dynamicDestinations = dynamicDestinations;
+    this.createDisposition = createDisposition;
+    this.kmsKey = kmsKey;
+    this.bqServices = bqServices;
+    this.destinationCoder = destinationCoder;
+  }
+
+  @Override
+  public PCollection<Void> expand(PCollection<KV<DestinationT, byte[]>> input) {
+    String operationName = input.getName() + "/" + getName();
+    // Append records to the Storage API streams.
+    return input.apply(
+        "Write Records",
+        ParDo.of(new WriteRecordsDoFn(operationName))
+            .withSideInputs(dynamicDestinations.getSideInputs()));
+  }
+
+  class WriteRecordsDoFn extends DoFn<KV<DestinationT, byte[]>, Void> {
+    private final TwoLevelMessageConverterCache<DestinationT, ElementT> messageConverters;
+    private Map<DestinationT, TableDestination> destinations = Maps.newHashMap();
+    private Map<DestinationT, List<byte[]>> bundleElements = Maps.newHashMap();
+    private @Nullable DatasetService datasetServiceInternal = null;
+    private final Counter recordsAppended =
+        Metrics.counter(WriteRecordsDoFn.class, "recordsAppended");
+    private final Counter appendFailures =
+        Metrics.counter(WriteRecordsDoFn.class, "appendFailures");
+    private final Distribution appendLatencyDistribution =
+        Metrics.distribution(WriteRecordsDoFn.class, "appendLatencyDistributionMs");
+
+    public WriteRecordsDoFn(String operationName) {
+      this.messageConverters = new TwoLevelMessageConverterCache<>(operationName);
+    }
+
+    @StartBundle
+    public void startBundle() {
+      destinations = Maps.newHashMap();
+      bundleElements = Maps.newHashMap();
+    }
+
+    @ProcessElement
+    public void process(ProcessContext c, @Element KV<DestinationT, byte[]> element)
+        throws Exception {
+      dynamicDestinations.setSideInputAccessorFromProcessContext(c);
+      destinations.computeIfAbsent(
+          element.getKey(),
+          dest -> {
+            TableDestination tableDestination1 = dynamicDestinations.getTable(dest);
+            checkArgument(
+                tableDestination1 != null,
+                "DynamicDestinations.getTable() may not return null, "
+                    + "but %s returned null for destination %s",
+                dynamicDestinations,
+                dest);
+            Supplier<TableSchema> schemaSupplier = () -> dynamicDestinations.getSchema(dest);
+            return CreateTableHelpers.possiblyCreateTable(
+                c,
+                tableDestination1,
+                schemaSupplier,
+                createDisposition,
+                destinationCoder,
+                kmsKey,
+                bqServices);
+          });
+      bundleElements
+          .computeIfAbsent(element.getKey(), dest -> Lists.newArrayList())
+          .add(element.getValue());
+    }
+
+    @FinishBundle
+    public void finishBundle(PipelineOptions pipelineOptions) throws Exception {
+      final DatasetService datasetService = getDatasetService(pipelineOptions);
+      Instant now = Instant.now();
+      RetryManager<AppendRowsResponse, RetryManager.Operation.Context<AppendRowsResponse>>
+          retryManager =
+              new RetryManager<>(Duration.standardSeconds(1), Duration.standardSeconds(10), 1000);
+      for (Map.Entry<DestinationT, List<byte[]>> entry : bundleElements.entrySet()) {
+        appendRecords(entry.getKey(), entry.getValue(), datasetService, retryManager);
+      }
+      retryManager.run(true);
+
+      java.time.Duration timeElapsed = java.time.Duration.between(now, Instant.now());
+      appendLatencyDistribution.update(timeElapsed.toMillis());
+
+      destinations.clear();
+      bundleElements.clear();
+    }
+
+    @SuppressWarnings({"nullness"})
+    public void appendRecords(
+        DestinationT destination,
+        List<byte[]> records,
+        DatasetService datasetService,
+        RetryManager<AppendRowsResponse, RetryManager.Operation.Context<AppendRowsResponse>>
+            retryManager)
+        throws Exception {
+      @Nullable TableDestination tableDestination = destinations.get(destination);
+      if (tableDestination == null) {
+        throw new RuntimeException("Unexpected null destination.");
+      }
+      final String tableId = tableDestination.getTableUrn();
+      MessageConverter<ElementT> messageConverter =
+          messageConverters.get(destination, dynamicDestinations);
+      Descriptor descriptor = messageConverter.getSchemaDescriptor();
+      final long oneMb = 1024 * 1024;

Review comment:
       perhaps make this a constant with documentation?

##########
File path: sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/bigquery/StorageApiWriteRecordsInconsistent.java
##########
@@ -0,0 +1,265 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.beam.sdk.io.gcp.bigquery;
+
+import static org.apache.beam.vendor.guava.v26_0_jre.com.google.common.base.Preconditions.checkArgument;
+
+import com.google.api.services.bigquery.model.TableSchema;
+import com.google.cloud.bigquery.storage.v1beta2.AppendRowsResponse;
+import com.google.cloud.bigquery.storage.v1beta2.ProtoRows;
+import com.google.protobuf.Descriptors.Descriptor;
+import java.time.Instant;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Nullable;
+import org.apache.beam.sdk.coders.Coder;
+import org.apache.beam.sdk.io.gcp.bigquery.BigQueryIO.Write.CreateDisposition;
+import org.apache.beam.sdk.io.gcp.bigquery.BigQueryServices.DatasetService;
+import org.apache.beam.sdk.io.gcp.bigquery.BigQueryServices.StreamAppendClient;
+import org.apache.beam.sdk.io.gcp.bigquery.RetryManager.Operation.Context;
+import org.apache.beam.sdk.io.gcp.bigquery.RetryManager.RetryType;
+import org.apache.beam.sdk.io.gcp.bigquery.StorageApiDynamicDestinations.MessageConverter;
+import org.apache.beam.sdk.metrics.Counter;
+import org.apache.beam.sdk.metrics.Distribution;
+import org.apache.beam.sdk.metrics.Metrics;
+import org.apache.beam.sdk.options.PipelineOptions;
+import org.apache.beam.sdk.transforms.DoFn;
+import org.apache.beam.sdk.transforms.PTransform;
+import org.apache.beam.sdk.transforms.ParDo;
+import org.apache.beam.sdk.values.KV;
+import org.apache.beam.sdk.values.PCollection;
+import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.base.Supplier;
+import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.cache.Cache;
+import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.cache.CacheBuilder;
+import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.cache.RemovalNotification;
+import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.Iterables;
+import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.Lists;
+import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.Maps;
+import org.joda.time.Duration;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * A transform to write sharded records to BigQuery using the Storage API. This transform uses the
+ * default stream to write the records. Records written will show up in BigQuery immediately,
+ * however exactly once is not guaranteed - duplicates may appear in the output. For exactly-once
+ * writes, use {@link StorageApiWritesShardedRecords} or {@link StorageApiWriteUnshardedRecords}.
+ */
+@SuppressWarnings("FutureReturnValueIgnored")
+public class StorageApiWriteRecordsInconsistent<DestinationT, ElementT>
+    extends PTransform<PCollection<KV<DestinationT, byte[]>>, PCollection<Void>> {
+  private static final Logger LOG =
+      LoggerFactory.getLogger(StorageApiWriteRecordsInconsistent.class);
+
+  private final StorageApiDynamicDestinations<ElementT, DestinationT> dynamicDestinations;
+  private final CreateDisposition createDisposition;
+  private final String kmsKey;
+  private final BigQueryServices bqServices;
+  private final Coder<DestinationT> destinationCoder;
+  private static final ExecutorService closeWriterExecutor = Executors.newCachedThreadPool();
+
+  private static final Cache<String, StreamAppendClient> APPEND_CLIENTS =
+      CacheBuilder.newBuilder()
+          .expireAfterAccess(5, TimeUnit.MINUTES)
+          .removalListener(
+              (RemovalNotification<String, StreamAppendClient> removal) -> {
+                @Nullable final StreamAppendClient streamAppendClient = removal.getValue();
+                // Close the writer in a different thread so as not to block the main one.
+                runAsyncIgnoreFailure(closeWriterExecutor, streamAppendClient::close);
+              })
+          .build();
+
+  // Run a closure asynchronously, ignoring failures.
+  private interface ThrowingRunnable {
+    void run() throws Exception;
+  }
+
+  private static void runAsyncIgnoreFailure(ExecutorService executor, ThrowingRunnable task) {
+    executor.submit(
+        () -> {
+          try {
+            task.run();
+          } catch (Exception e) {
+            //
+          }
+        });
+  }
+
+  public StorageApiWriteRecordsInconsistent(
+      StorageApiDynamicDestinations<ElementT, DestinationT> dynamicDestinations,
+      CreateDisposition createDisposition,
+      String kmsKey,
+      BigQueryServices bqServices,
+      Coder<DestinationT> destinationCoder) {
+    this.dynamicDestinations = dynamicDestinations;
+    this.createDisposition = createDisposition;
+    this.kmsKey = kmsKey;
+    this.bqServices = bqServices;
+    this.destinationCoder = destinationCoder;
+  }
+
+  @Override
+  public PCollection<Void> expand(PCollection<KV<DestinationT, byte[]>> input) {
+    String operationName = input.getName() + "/" + getName();
+    // Append records to the Storage API streams.
+    return input.apply(
+        "Write Records",
+        ParDo.of(new WriteRecordsDoFn(operationName))

Review comment:
       is the difference between the inconsistent and consistent writes the finalization of streams? (e.g. like here: https://github.com/apache/beam/blob/master/sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/bigquery/StorageApiWriteUnshardedRecords.java#L103)
   
   Doesn't it make sense to reuse the logic from that file? I see this file has metrics, so that's nice... just wondering. WDYT?

##########
File path: sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/bigquery/StorageApiWriteRecordsInconsistent.java
##########
@@ -0,0 +1,265 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.beam.sdk.io.gcp.bigquery;
+
+import static org.apache.beam.vendor.guava.v26_0_jre.com.google.common.base.Preconditions.checkArgument;
+
+import com.google.api.services.bigquery.model.TableSchema;
+import com.google.cloud.bigquery.storage.v1beta2.AppendRowsResponse;
+import com.google.cloud.bigquery.storage.v1beta2.ProtoRows;
+import com.google.protobuf.Descriptors.Descriptor;
+import java.time.Instant;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Nullable;
+import org.apache.beam.sdk.coders.Coder;
+import org.apache.beam.sdk.io.gcp.bigquery.BigQueryIO.Write.CreateDisposition;
+import org.apache.beam.sdk.io.gcp.bigquery.BigQueryServices.DatasetService;
+import org.apache.beam.sdk.io.gcp.bigquery.BigQueryServices.StreamAppendClient;
+import org.apache.beam.sdk.io.gcp.bigquery.RetryManager.Operation.Context;
+import org.apache.beam.sdk.io.gcp.bigquery.RetryManager.RetryType;
+import org.apache.beam.sdk.io.gcp.bigquery.StorageApiDynamicDestinations.MessageConverter;
+import org.apache.beam.sdk.metrics.Counter;
+import org.apache.beam.sdk.metrics.Distribution;
+import org.apache.beam.sdk.metrics.Metrics;
+import org.apache.beam.sdk.options.PipelineOptions;
+import org.apache.beam.sdk.transforms.DoFn;
+import org.apache.beam.sdk.transforms.PTransform;
+import org.apache.beam.sdk.transforms.ParDo;
+import org.apache.beam.sdk.values.KV;
+import org.apache.beam.sdk.values.PCollection;
+import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.base.Supplier;
+import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.cache.Cache;
+import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.cache.CacheBuilder;
+import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.cache.RemovalNotification;
+import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.Iterables;
+import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.Lists;
+import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.Maps;
+import org.joda.time.Duration;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * A transform to write sharded records to BigQuery using the Storage API. This transform uses the
+ * default stream to write the records. Records written will show up in BigQuery immediately,
+ * however exactly once is not guaranteed - duplicates may appear in the output. For exactly-once
+ * writes, use {@link StorageApiWritesShardedRecords} or {@link StorageApiWriteUnshardedRecords}.
+ */
+@SuppressWarnings("FutureReturnValueIgnored")
+public class StorageApiWriteRecordsInconsistent<DestinationT, ElementT>
+    extends PTransform<PCollection<KV<DestinationT, byte[]>>, PCollection<Void>> {
+  private static final Logger LOG =
+      LoggerFactory.getLogger(StorageApiWriteRecordsInconsistent.class);
+
+  private final StorageApiDynamicDestinations<ElementT, DestinationT> dynamicDestinations;
+  private final CreateDisposition createDisposition;
+  private final String kmsKey;
+  private final BigQueryServices bqServices;
+  private final Coder<DestinationT> destinationCoder;
+  private static final ExecutorService closeWriterExecutor = Executors.newCachedThreadPool();
+
+  private static final Cache<String, StreamAppendClient> APPEND_CLIENTS =
+      CacheBuilder.newBuilder()
+          .expireAfterAccess(5, TimeUnit.MINUTES)
+          .removalListener(
+              (RemovalNotification<String, StreamAppendClient> removal) -> {
+                @Nullable final StreamAppendClient streamAppendClient = removal.getValue();
+                // Close the writer in a different thread so as not to block the main one.
+                runAsyncIgnoreFailure(closeWriterExecutor, streamAppendClient::close);
+              })
+          .build();
+
+  // Run a closure asynchronously, ignoring failures.
+  private interface ThrowingRunnable {
+    void run() throws Exception;
+  }
+
+  private static void runAsyncIgnoreFailure(ExecutorService executor, ThrowingRunnable task) {
+    executor.submit(
+        () -> {
+          try {
+            task.run();
+          } catch (Exception e) {
+            //
+          }
+        });
+  }
+
+  public StorageApiWriteRecordsInconsistent(
+      StorageApiDynamicDestinations<ElementT, DestinationT> dynamicDestinations,
+      CreateDisposition createDisposition,
+      String kmsKey,
+      BigQueryServices bqServices,
+      Coder<DestinationT> destinationCoder) {
+    this.dynamicDestinations = dynamicDestinations;
+    this.createDisposition = createDisposition;
+    this.kmsKey = kmsKey;
+    this.bqServices = bqServices;
+    this.destinationCoder = destinationCoder;
+  }
+
+  @Override
+  public PCollection<Void> expand(PCollection<KV<DestinationT, byte[]>> input) {
+    String operationName = input.getName() + "/" + getName();
+    // Append records to the Storage API streams.
+    return input.apply(

Review comment:
       Does it make sense to add `GroupIntoBatches.withShardedKey` in this transform? At least for streaming pipelines?




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