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* 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.hudi.table;
import org.apache.hudi.avro.model.HoodieCompactionPlan;
import org.apache.hudi.avro.model.HoodieRestoreMetadata;
import org.apache.hudi.avro.model.HoodieRollbackMetadata;
import org.apache.hudi.avro.model.HoodieRollbackPlan;
import org.apache.hudi.client.WriteStatus;
import org.apache.hudi.client.common.HoodieSparkEngineContext;
import org.apache.hudi.common.data.HoodieData;
import org.apache.hudi.common.engine.HoodieEngineContext;
import org.apache.hudi.common.model.HoodieKey;
import org.apache.hudi.common.model.HoodieRecord;
import org.apache.hudi.common.model.HoodieWriteStat;
import org.apache.hudi.common.model.WriteOperationType;
import org.apache.hudi.common.table.HoodieTableMetaClient;
import org.apache.hudi.common.table.log.block.HoodieLogBlock;
import org.apache.hudi.common.table.timeline.HoodieInstant;
import org.apache.hudi.common.table.timeline.HoodieTimeline;
import org.apache.hudi.common.util.Option;
import org.apache.hudi.config.HoodieWriteConfig;
import org.apache.hudi.exception.HoodieException;
import org.apache.hudi.exception.HoodieIOException;
import org.apache.hudi.exception.HoodieMetadataException;
import org.apache.hudi.io.HoodieAppendHandle;
import org.apache.hudi.table.action.HoodieWriteMetadata;
import org.apache.hudi.table.action.bootstrap.HoodieBootstrapWriteMetadata;
import org.apache.hudi.table.action.bootstrap.SparkBootstrapDeltaCommitActionExecutor;
import org.apache.hudi.table.action.compact.HoodieSparkMergeOnReadTableCompactor;
import org.apache.hudi.table.action.compact.RunCompactionActionExecutor;
import org.apache.hudi.table.action.compact.ScheduleCompactionActionExecutor;
import org.apache.hudi.table.action.deltacommit.SparkBulkInsertDeltaCommitActionExecutor;
import org.apache.hudi.table.action.deltacommit.SparkBulkInsertPreppedDeltaCommitActionExecutor;
import org.apache.hudi.table.action.deltacommit.SparkDeleteDeltaCommitActionExecutor;
import org.apache.hudi.table.action.deltacommit.SparkDeletePreppedDeltaCommitActionExecutor;
import org.apache.hudi.table.action.deltacommit.SparkInsertDeltaCommitActionExecutor;
import org.apache.hudi.table.action.deltacommit.SparkInsertPreppedDeltaCommitActionExecutor;
import org.apache.hudi.table.action.deltacommit.SparkUpsertDeltaCommitActionExecutor;
import org.apache.hudi.table.action.deltacommit.SparkUpsertPreppedDeltaCommitActionExecutor;
import org.apache.hudi.table.action.restore.MergeOnReadRestoreActionExecutor;
import org.apache.hudi.table.action.rollback.BaseRollbackPlanActionExecutor;
import org.apache.hudi.table.action.rollback.MergeOnReadRollbackActionExecutor;
import org.apache.hudi.table.action.rollback.RestorePlanActionExecutor;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import static org.apache.hudi.metadata.HoodieTableMetadataUtil.deleteMetadataTable;
/**
* Implementation of a more real-time Hoodie Table the provides tradeoffs on read and write cost/amplification.
*
*
* INSERTS - Same as HoodieCopyOnWriteTable - Produce new files, block aligned to desired size (or) Merge with the
* smallest existing file, to expand it
*
*
* UPDATES - Appends the changes to a rolling log file maintained per file Id. Compaction merges the log file into the
* base file.
*
*
* WARNING - MOR table type does not support nested rollbacks, every rollback must be followed by an attempted commit
* action
*
*/
public class HoodieSparkMergeOnReadTable extends HoodieSparkCopyOnWriteTable implements HoodieCompactionHandler {
private static final Logger LOG = LoggerFactory.getLogger(HoodieSparkMergeOnReadTable.class);
HoodieSparkMergeOnReadTable(HoodieWriteConfig config, HoodieEngineContext context, HoodieTableMetaClient metaClient) {
super(config, context, metaClient);
}
@Override
public HoodieWriteMetadata> upsert(HoodieEngineContext context, String instantTime, HoodieData> records) {
return new SparkUpsertDeltaCommitActionExecutor<>((HoodieSparkEngineContext) context, config, this, instantTime, records).execute();
}
@Override
public HoodieWriteMetadata> insert(HoodieEngineContext context, String instantTime, HoodieData> records) {
return new SparkInsertDeltaCommitActionExecutor<>((HoodieSparkEngineContext) context, config, this, instantTime, records).execute();
}
@Override
public HoodieWriteMetadata> bulkInsert(HoodieEngineContext context, String instantTime, HoodieData> records,
Option userDefinedBulkInsertPartitioner) {
return new SparkBulkInsertDeltaCommitActionExecutor<>((HoodieSparkEngineContext) context, config,
this, instantTime, records, userDefinedBulkInsertPartitioner).execute();
}
@Override
public HoodieWriteMetadata> delete(HoodieEngineContext context, String instantTime, HoodieData keys) {
return new SparkDeleteDeltaCommitActionExecutor<>((HoodieSparkEngineContext) context, config, this, instantTime, keys).execute();
}
@Override
public HoodieWriteMetadata> deletePrepped(HoodieEngineContext context, String instantTime, HoodieData> preppedRecords) {
return new SparkDeletePreppedDeltaCommitActionExecutor<>((HoodieSparkEngineContext) context, config, this, instantTime, preppedRecords).execute();
}
@Override
public HoodieWriteMetadata> upsertPrepped(HoodieEngineContext context, String instantTime,
HoodieData> preppedRecords) {
return new SparkUpsertPreppedDeltaCommitActionExecutor<>((HoodieSparkEngineContext) context, config, this, instantTime, preppedRecords).execute();
}
@Override
public HoodieWriteMetadata> insertPrepped(HoodieEngineContext context, String instantTime,
HoodieData> preppedRecords) {
return new SparkInsertPreppedDeltaCommitActionExecutor<>((HoodieSparkEngineContext) context, config, this, instantTime, preppedRecords).execute();
}
@Override
public HoodieWriteMetadata> bulkInsertPrepped(HoodieEngineContext context, String instantTime,
HoodieData> preppedRecords, Option userDefinedBulkInsertPartitioner) {
return new SparkBulkInsertPreppedDeltaCommitActionExecutor((HoodieSparkEngineContext) context, config,
this, instantTime, preppedRecords, userDefinedBulkInsertPartitioner).execute();
}
@Override
public Option scheduleCompaction(HoodieEngineContext context, String instantTime, Option> extraMetadata) {
ScheduleCompactionActionExecutor scheduleCompactionExecutor = new ScheduleCompactionActionExecutor(
context, config, this, instantTime, extraMetadata, WriteOperationType.COMPACT);
return scheduleCompactionExecutor.execute();
}
@Override
public HoodieWriteMetadata> compact(
HoodieEngineContext context, String compactionInstantTime) {
RunCompactionActionExecutor compactionExecutor = new RunCompactionActionExecutor<>(
context, config, this, compactionInstantTime, new HoodieSparkMergeOnReadTableCompactor<>(),
new HoodieSparkCopyOnWriteTable<>(config, context, getMetaClient()), WriteOperationType.COMPACT);
return compactionExecutor.execute();
}
@Override
public HoodieBootstrapWriteMetadata> bootstrap(HoodieEngineContext context, Option> extraMetadata) {
return new SparkBootstrapDeltaCommitActionExecutor<>((HoodieSparkEngineContext) context, config, this, extraMetadata).execute();
}
@Override
public Option scheduleLogCompaction(HoodieEngineContext context, String instantTime, Option> extraMetadata) {
ScheduleCompactionActionExecutor scheduleLogCompactionExecutor = new ScheduleCompactionActionExecutor(
context, config, this, instantTime, extraMetadata, WriteOperationType.LOG_COMPACT);
return scheduleLogCompactionExecutor.execute();
}
@Override
public HoodieWriteMetadata> logCompact(
HoodieEngineContext context, String logCompactionInstantTime) {
RunCompactionActionExecutor logCompactionExecutor = new RunCompactionActionExecutor(context, config, this,
logCompactionInstantTime, new HoodieSparkMergeOnReadTableCompactor<>(), this, WriteOperationType.LOG_COMPACT);
return logCompactionExecutor.execute();
}
@Override
public void rollbackBootstrap(HoodieEngineContext context, String instantTime) {
// Delete metadata table to rollback a failed bootstrap. re-attempt of bootstrap will re-initialize the mdt.
try {
LOG.info("Deleting metadata table because we are rolling back failed bootstrap. ");
deleteMetadataTable(config.getBasePath(), context);
} catch (HoodieMetadataException e) {
throw new HoodieException("Failed to delete metadata table.", e);
}
new RestorePlanActionExecutor<>(context, config, this, instantTime, HoodieTimeline.INIT_INSTANT_TS).execute();
new MergeOnReadRestoreActionExecutor<>(context, config, this, instantTime, HoodieTimeline.INIT_INSTANT_TS).execute();
}
@Override
public Option scheduleRollback(HoodieEngineContext context,
String instantTime,
HoodieInstant instantToRollback, boolean skipTimelinePublish, boolean shouldRollbackUsingMarkers,
boolean isRestore) {
return new BaseRollbackPlanActionExecutor<>(context, config, this, instantTime, instantToRollback, skipTimelinePublish,
shouldRollbackUsingMarkers, isRestore).execute();
}
@Override
public Iterator> handleInsertsForLogCompaction(String instantTime, String partitionPath, String fileId,
Map> recordMap,
Map header) {
HoodieAppendHandle appendHandle = new HoodieAppendHandle(config, instantTime, this,
partitionPath, fileId, recordMap.values().iterator(), taskContextSupplier, header);
appendHandle.write(recordMap);
List writeStatuses = appendHandle.close();
return Collections.singletonList(writeStatuses).iterator();
}
@Override
public HoodieRollbackMetadata rollback(HoodieEngineContext context,
String rollbackInstantTime,
HoodieInstant commitInstant,
boolean deleteInstants,
boolean skipLocking) {
return new MergeOnReadRollbackActionExecutor<>(context, config, this, rollbackInstantTime, commitInstant, deleteInstants, skipLocking).execute();
}
@Override
public HoodieRestoreMetadata restore(HoodieEngineContext context, String restoreInstantTimestamp, String savepointToRestoreTimestamp) {
return new MergeOnReadRestoreActionExecutor<>(context, config, this, restoreInstantTimestamp, savepointToRestoreTimestamp).execute();
}
@Override
public void finalizeWrite(HoodieEngineContext context, String instantTs, List stats)
throws HoodieIOException {
// delegate to base class for MOR tables
super.finalizeWrite(context, instantTs, stats);
}
}