io.trino.execution.scheduler.faulttolerant.OutputDataSizeEstimator Maven / Gradle / Ivy
/*
* Licensed 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 io.trino.execution.scheduler.faulttolerant;
import com.google.common.primitives.ImmutableLongArray;
import io.trino.execution.StageId;
import io.trino.execution.scheduler.OutputDataSizeEstimate;
import java.util.Optional;
import java.util.function.Function;
import static java.util.Objects.requireNonNull;
public interface OutputDataSizeEstimator
{
Optional getEstimatedOutputDataSize(
EventDrivenFaultTolerantQueryScheduler.StageExecution stageExecution,
Function stageExecutionLookup,
boolean parentEager);
enum OutputDataSizeEstimateStatus {
FINISHED,
ESTIMATED_BY_PROGRESS,
ESTIMATED_BY_SMALL_INPUT,
ESTIMATED_FOR_EAGER_PARENT
}
record OutputDataSizeEstimateResult(
OutputDataSizeEstimate outputDataSizeEstimate,
OutputDataSizeEstimateStatus status)
{
OutputDataSizeEstimateResult(ImmutableLongArray partitionDataSizes, OutputDataSizeEstimateStatus status)
{
this(new OutputDataSizeEstimate(partitionDataSizes), status);
}
public OutputDataSizeEstimateResult
{
requireNonNull(outputDataSizeEstimate, "outputDataSizeEstimate is null");
requireNonNull(status, "status is null");
}
}
}