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hantangwangdhantangwangd
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Refactor Iceberg connector to support call distributed procedure
1 parent f094912 commit 64a002f

16 files changed

+485
-20
lines changed

‎presto-iceberg/src/main/java/com/facebook/presto/iceberg/CallDistributedProcedureSplitSource.java‎

Lines changed: 135 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,135 @@
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/*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.facebook.presto.iceberg;
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import com.facebook.presto.iceberg.delete.DeleteFile;
17+
import com.facebook.presto.spi.ConnectorSession;
18+
import com.facebook.presto.spi.ConnectorSplit;
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import com.facebook.presto.spi.ConnectorSplitSource;
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import com.facebook.presto.spi.SplitWeight;
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import com.facebook.presto.spi.connector.ConnectorPartitionHandle;
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import com.google.common.collect.ImmutableList;
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import com.google.common.io.Closer;
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import org.apache.iceberg.FileScanTask;
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import org.apache.iceberg.PartitionSpec;
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import org.apache.iceberg.PartitionSpecParser;
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import org.apache.iceberg.TableScan;
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import org.apache.iceberg.io.CloseableIterable;
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import org.apache.iceberg.io.CloseableIterator;
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import java.io.IOException;
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import java.io.UncheckedIOException;
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import java.util.ArrayList;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Optional;
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import java.util.concurrent.CompletableFuture;
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import java.util.function.Consumer;
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import static com.facebook.presto.hive.HiveCommonSessionProperties.getNodeSelectionStrategy;
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import static com.facebook.presto.iceberg.FileFormat.fromIcebergFileFormat;
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import static com.facebook.presto.iceberg.IcebergUtil.getDataSequenceNumber;
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import static com.facebook.presto.iceberg.IcebergUtil.getPartitionKeys;
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import static com.facebook.presto.iceberg.IcebergUtil.partitionDataFromStructLike;
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import static com.google.common.collect.ImmutableList.toImmutableList;
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import static com.google.common.collect.Iterators.limit;
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import static java.util.Objects.requireNonNull;
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import static java.util.concurrent.CompletableFuture.completedFuture;
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public class CallDistributedProcedureSplitSource
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implements ConnectorSplitSource
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{
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private CloseableIterator<FileScanTask> fileScanTaskIterator;
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private Optional<Consumer<FileScanTask>> fileScanTaskConsumer;
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private final TableScan tableScan;
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private final Closer closer = Closer.create();
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private final double minimumAssignedSplitWeight;
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private final ConnectorSession session;
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public CallDistributedProcedureSplitSource(
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ConnectorSession session,
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TableScan tableScan,
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CloseableIterable<FileScanTask> fileScanTaskIterable,
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Optional<Consumer<FileScanTask>> fileScanTaskConsumer,
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double minimumAssignedSplitWeight)
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{
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this.session = requireNonNull(session, "session is null");
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this.tableScan = requireNonNull(tableScan, "tableScan is null");
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this.fileScanTaskIterator = fileScanTaskIterable.iterator();
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this.fileScanTaskConsumer = requireNonNull(fileScanTaskConsumer, "fileScanTaskConsumer is null");
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this.minimumAssignedSplitWeight = minimumAssignedSplitWeight;
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closer.register(fileScanTaskIterator);
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}
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@Override
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public CompletableFuture<ConnectorSplitBatch> getNextBatch(ConnectorPartitionHandle partitionHandle, int maxSize)
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{
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// TODO: move this to a background thread
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List<ConnectorSplit> splits = new ArrayList<>();
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Iterator<FileScanTask> iterator = limit(fileScanTaskIterator, maxSize);
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while (iterator.hasNext()) {
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FileScanTask task = iterator.next();
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fileScanTaskConsumer.ifPresent(consumer -> consumer.accept(task));
85+
splits.add(toIcebergSplit(task));
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}
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return completedFuture(new ConnectorSplitBatch(splits, isFinished()));
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}
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@Override
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public boolean isFinished()
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{
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return !fileScanTaskIterator.hasNext();
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}
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@Override
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public void close()
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{
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try {
100+
closer.close();
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// TODO: remove this after org.apache.iceberg.io.CloseableIterator'withClose
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// correct release resources holds by iterator.
103+
fileScanTaskIterator = CloseableIterator.empty();
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}
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catch (IOException e) {
106+
throw new UncheckedIOException(e);
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}
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}
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private ConnectorSplit toIcebergSplit(FileScanTask task)
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{
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PartitionSpec spec = task.spec();
113+
Optional<PartitionData> partitionData = partitionDataFromStructLike(spec, task.file().partition());
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115+
// TODO: We should leverage residual expression and convert that to TupleDomain.
116+
// The predicate here is used by readers for predicate push down at reader level,
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// so when we do not use residual expression, we are just wasting CPU cycles
118+
// on reader side evaluating a condition that we know will always be true.
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120+
return new IcebergSplit(
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task.file().path().toString(),
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task.start(),
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task.length(),
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fromIcebergFileFormat(task.file().format()),
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ImmutableList.of(),
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getPartitionKeys(task),
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PartitionSpecParser.toJson(spec),
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partitionData.map(PartitionData::toJson),
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getNodeSelectionStrategy(session),
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SplitWeight.fromProportion(Math.min(Math.max((double) task.length() / tableScan.targetSplitSize(), minimumAssignedSplitWeight), 1.0)),
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task.deletes().stream().map(DeleteFile::fromIceberg).collect(toImmutableList()),
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Optional.empty(),
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getDataSequenceNumber(task.file()));
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}
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}

‎presto-iceberg/src/main/java/com/facebook/presto/iceberg/IcebergAbstractMetadata.java‎

Lines changed: 69 additions & 12 deletions
Original file line numberDiff line numberDiff line change
@@ -15,6 +15,7 @@
1515

1616
import com.facebook.airlift.json.JsonCodec;
1717
import com.facebook.airlift.log.Logger;
18+
import com.facebook.presto.common.QualifiedObjectName;
1819
import com.facebook.presto.common.Subfield;
1920
import com.facebook.presto.common.predicate.TupleDomain;
2021
import com.facebook.presto.common.type.BigintType;
@@ -27,10 +28,13 @@
2728
import com.facebook.presto.iceberg.changelog.ChangelogUtil;
2829
import com.facebook.presto.spi.ColumnHandle;
2930
import com.facebook.presto.spi.ColumnMetadata;
31+
import com.facebook.presto.spi.ConnectorDistributedProcedureHandle;
32+
import com.facebook.presto.spi.ConnectorId;
3033
import com.facebook.presto.spi.ConnectorInsertTableHandle;
3134
import com.facebook.presto.spi.ConnectorNewTableLayout;
3235
import com.facebook.presto.spi.ConnectorOutputTableHandle;
3336
import com.facebook.presto.spi.ConnectorSession;
37+
import com.facebook.presto.spi.ConnectorSplitSource;
3438
import com.facebook.presto.spi.ConnectorTableHandle;
3539
import com.facebook.presto.spi.ConnectorTableLayout;
3640
import com.facebook.presto.spi.ConnectorTableLayoutHandle;
@@ -49,6 +53,9 @@
4953
import com.facebook.presto.spi.connector.ConnectorTableVersion.VersionOperator;
5054
import com.facebook.presto.spi.connector.ConnectorTableVersion.VersionType;
5155
import com.facebook.presto.spi.function.StandardFunctionResolution;
56+
import com.facebook.presto.spi.procedure.DistributedProcedure;
57+
import com.facebook.presto.spi.procedure.IProcedureRegistry;
58+
import com.facebook.presto.spi.procedure.Procedure;
5259
import com.facebook.presto.spi.relation.RowExpression;
5360
import com.facebook.presto.spi.relation.RowExpressionService;
5461
import com.facebook.presto.spi.statistics.ColumnStatisticMetadata;
@@ -165,23 +172,26 @@ public abstract class IcebergAbstractMetadata
165172
implements ConnectorMetadata
166173
{
167174
protected final TypeManager typeManager;
175+
protected final IProcedureRegistry procedureRegistry;
168176
protected final JsonCodec<CommitTaskData> commitTaskCodec;
169177
protected final NodeVersion nodeVersion;
170178
protected final RowExpressionService rowExpressionService;
171-
protected Transaction transaction;
179+
protected IcebergTransactionContext transactionContext;
172180

173181
private final StandardFunctionResolution functionResolution;
174182
private final ConcurrentMap<SchemaTableName, Table> icebergTables = new ConcurrentHashMap<>();
175183
private static final Logger log = Logger.get(IcebergAbstractMetadata.class);
176184

177185
public IcebergAbstractMetadata(
178186
TypeManager typeManager,
187+
IProcedureRegistry procedureRegistry,
179188
StandardFunctionResolution functionResolution,
180189
RowExpressionService rowExpressionService,
181190
JsonCodec<CommitTaskData> commitTaskCodec,
182191
NodeVersion nodeVersion)
183192
{
184193
this.typeManager = requireNonNull(typeManager, "typeManager is null");
194+
this.procedureRegistry = requireNonNull(procedureRegistry, "procedureRegistry is null");
185195
this.commitTaskCodec = requireNonNull(commitTaskCodec, "commitTaskCodec is null");
186196
this.functionResolution = requireNonNull(functionResolution, "functionResolution is null");
187197
this.rowExpressionService = requireNonNull(rowExpressionService, "rowExpressionService is null");
@@ -203,6 +213,11 @@ protected final Table getIcebergTable(ConnectorSession session, SchemaTableName
203213

204214
public abstract void unregisterTable(ConnectorSession clientSession, SchemaTableName schemaTableName);
205215

216+
public Optional<ConnectorSplitSource> getSplitSourceInCurrentCallProcedureTransaction()
217+
{
218+
return transactionContext == null ? Optional.empty() : transactionContext.getConnectorSplitSource();
219+
}
220+
206221
/**
207222
* This class implements the default implementation for getTableLayoutForConstraint which will be used in the case of a Java Worker
208223
*/
@@ -432,7 +447,7 @@ public Optional<ConnectorOutputMetadata> finishCreateTable(ConnectorSession sess
432447

433448
protected ConnectorInsertTableHandle beginIcebergTableInsert(IcebergTableHandle table, Table icebergTable)
434449
{
435-
transaction = icebergTable.newTransaction();
450+
transactionContext = new IcebergTransactionContext(Optional.of(icebergTable), icebergTable.newTransaction());
436451

437452
return new IcebergWritableTableHandle(
438453
table.getSchemaName(),
@@ -449,12 +464,13 @@ protected ConnectorInsertTableHandle beginIcebergTableInsert(IcebergTableHandle
449464
public Optional<ConnectorOutputMetadata> finishInsert(ConnectorSession session, ConnectorInsertTableHandle insertHandle, Collection<Slice> fragments, Collection<ComputedStatistics> computedStatistics)
450465
{
451466
if (fragments.isEmpty()) {
452-
transaction.commitTransaction();
467+
transactionContext.getTransaction().commitTransaction();
468+
transactionContext.destroy();
453469
return Optional.empty();
454470
}
455471

456472
IcebergWritableTableHandle table = (IcebergWritableTableHandle) insertHandle;
457-
Table icebergTable = transaction.table();
473+
Table icebergTable = transactionContext.getTransaction().table();
458474

459475
List<CommitTaskData> commitTasks = fragments.stream()
460476
.map(slice -> commitTaskCodec.fromJson(slice.getBytes()))
@@ -465,7 +481,7 @@ public Optional<ConnectorOutputMetadata> finishInsert(ConnectorSession session,
465481
icebergTable.schema().findType(field.sourceId())))
466482
.toArray(Type[]::new);
467483

468-
AppendFiles appendFiles = transaction.newFastAppend();
484+
AppendFiles appendFiles = transactionContext.getTransaction().newFastAppend();
469485
for (CommitTaskData task : commitTasks) {
470486
DataFiles.Builder builder = DataFiles.builder(icebergTable.spec())
471487
.withPath(task.getPath())
@@ -483,7 +499,8 @@ public Optional<ConnectorOutputMetadata> finishInsert(ConnectorSession session,
483499
}
484500

485501
appendFiles.commit();
486-
transaction.commitTransaction();
502+
transactionContext.getTransaction().commitTransaction();
503+
transactionContext.destroy();
487504

488505
return Optional.of(new HiveWrittenPartitions(commitTasks.stream()
489506
.map(CommitTaskData::getPath)
@@ -789,6 +806,44 @@ public void truncateTable(ConnectorSession session, ConnectorTableHandle tableHa
789806
removeScanFiles(icebergTable, TupleDomain.all());
790807
}
791808

809+
@Override
810+
public ConnectorDistributedProcedureHandle beginCallDistributedProcedure(
811+
ConnectorSession session,
812+
QualifiedObjectName procedureName,
813+
ConnectorTableLayoutHandle tableLayoutHandle,
814+
Object[] arguments)
815+
{
816+
IcebergTableHandle handle = ((IcebergTableLayoutHandle) tableLayoutHandle).getTable();
817+
Table icebergTable = getIcebergTable(session, handle.getSchemaTableName());
818+
819+
if (handle.isSnapshotSpecified()) {
820+
throw new PrestoException(NOT_SUPPORTED, "This connector do not allow table execute at specified snapshot");
821+
}
822+
823+
transactionContext = new IcebergTransactionContext(Optional.of(icebergTable), icebergTable.newTransaction());
824+
Procedure procedure = procedureRegistry.resolve(
825+
new ConnectorId(procedureName.getCatalogName()),
826+
new SchemaTableName(
827+
procedureName.getSchemaName(),
828+
procedureName.getObjectName()));
829+
verify(procedure instanceof DistributedProcedure, "procedure must be DistributedProcedure");
830+
return ((DistributedProcedure) procedure).getBeginCallDistributedProcedure().begin(session, transactionContext, tableLayoutHandle, arguments);
831+
}
832+
833+
@Override
834+
public void finishCallDistributedProcedure(ConnectorSession session, ConnectorDistributedProcedureHandle procedureHandle, QualifiedObjectName procedureName, Collection<Slice> fragments)
835+
{
836+
Procedure procedure = procedureRegistry.resolve(
837+
new ConnectorId(procedureName.getCatalogName()),
838+
new SchemaTableName(
839+
procedureName.getSchemaName(),
840+
procedureName.getObjectName()));
841+
verify(procedure instanceof DistributedProcedure, "procedure must be DistributedProcedure");
842+
((DistributedProcedure) procedure).getFinishCallDistributedProcedure().finish(transactionContext, procedureHandle, fragments);
843+
transactionContext.getTransaction().commitTransaction();
844+
transactionContext.destroy();
845+
}
846+
792847
@Override
793848
public ConnectorTableHandle beginDelete(ConnectorSession session, ConnectorTableHandle tableHandle)
794849
{
@@ -809,7 +864,7 @@ public ConnectorTableHandle beginDelete(ConnectorSession session, ConnectorTable
809864
}
810865

811866
validateTableMode(session, icebergTable);
812-
transaction = icebergTable.newTransaction();
867+
transactionContext = new IcebergTransactionContext(Optional.of(icebergTable), icebergTable.newTransaction());
813868

814869
return handle;
815870
}
@@ -820,7 +875,7 @@ public void finishDelete(ConnectorSession session, ConnectorTableHandle tableHan
820875
IcebergTableHandle handle = (IcebergTableHandle) tableHandle;
821876
Table icebergTable = getIcebergTable(session, handle.getSchemaTableName());
822877

823-
RowDelta rowDelta = transaction.newRowDelta();
878+
RowDelta rowDelta = transactionContext.getTransaction().newRowDelta();
824879

825880
List<CommitTaskData> commitTasks = fragments.stream()
826881
.map(slice -> commitTaskCodec.fromJson(slice.getBytes()))
@@ -857,7 +912,8 @@ public void finishDelete(ConnectorSession session, ConnectorTableHandle tableHan
857912
}
858913

859914
rowDelta.commit();
860-
transaction.commitTransaction();
915+
transactionContext.getTransaction().commitTransaction();
916+
transactionContext.destroy();
861917
}
862918

863919
@Override
@@ -935,11 +991,12 @@ public OptionalLong metadataDelete(ConnectorSession session, ConnectorTableHandl
935991
*/
936992
private OptionalLong removeScanFiles(Table icebergTable, TupleDomain<IcebergColumnHandle> predicate)
937993
{
938-
transaction = icebergTable.newTransaction();
939-
DeleteFiles deleteFiles = transaction.newDelete()
994+
transactionContext = new IcebergTransactionContext(Optional.of(icebergTable), icebergTable.newTransaction());
995+
DeleteFiles deleteFiles = transactionContext.getTransaction().newDelete()
940996
.deleteFromRowFilter(toIcebergExpression(predicate));
941997
deleteFiles.commit();
942-
transaction.commitTransaction();
998+
transactionContext.getTransaction().commitTransaction();
999+
transactionContext.destroy();
9431000

9441001
Map<String, String> summary = icebergTable.currentSnapshot().summary();
9451002
long deletedRecords = Long.parseLong(summary.getOrDefault(DELETED_RECORDS_PROP, "0"));

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