org.apache.flink.runtime.checkpoint.CompletedCheckpointStatsSummary Maven / Gradle / Ivy
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* 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.flink.runtime.checkpoint;
import java.io.Serializable;
import static org.apache.flink.util.Preconditions.checkNotNull;
/** Summary over all completed checkpoints. */
public class CompletedCheckpointStatsSummary implements Serializable {
private static final long serialVersionUID = 5784360461635814038L;
private static final int HISTOGRAM_WINDOW_SIZE = 10_000; // ~300Kb per job with four histograms
/** State size statistics for all completed checkpoints. */
private final StatsSummary stateSize;
private final StatsSummary checkpointedSize;
/** Duration statistics for all completed checkpoints. */
private final StatsSummary duration;
private final StatsSummary processedData;
private final StatsSummary persistedData;
CompletedCheckpointStatsSummary() {
this(
new StatsSummary(HISTOGRAM_WINDOW_SIZE),
new StatsSummary(HISTOGRAM_WINDOW_SIZE),
new StatsSummary(HISTOGRAM_WINDOW_SIZE),
new StatsSummary(HISTOGRAM_WINDOW_SIZE),
new StatsSummary(HISTOGRAM_WINDOW_SIZE));
}
private CompletedCheckpointStatsSummary(
StatsSummary stateSize,
StatsSummary checkpointedSize,
StatsSummary duration,
StatsSummary processedData,
StatsSummary persistedData) {
this.stateSize = checkNotNull(stateSize);
this.checkpointedSize = checkNotNull(checkpointedSize);
this.duration = checkNotNull(duration);
this.processedData = checkNotNull(processedData);
this.persistedData = checkNotNull(persistedData);
}
/**
* Updates the summary with the given completed checkpoint.
*
* @param completed Completed checkpoint to update the summary with.
*/
void updateSummary(CompletedCheckpointStats completed) {
stateSize.add(completed.getStateSize());
checkpointedSize.add(completed.getCheckpointedSize());
duration.add(completed.getEndToEndDuration());
processedData.add(completed.getProcessedData());
persistedData.add(completed.getPersistedData());
}
/**
* Creates a snapshot of the current state.
*
* @return A snapshot of the current state.
*/
CompletedCheckpointStatsSummarySnapshot createSnapshot() {
return new CompletedCheckpointStatsSummarySnapshot(
duration.createSnapshot(),
processedData.createSnapshot(),
persistedData.createSnapshot(),
stateSize.createSnapshot(),
checkpointedSize.createSnapshot());
}
/**
* Returns the summary stats for the state size of completed checkpoints.
*
* @return Summary stats for the state size.
*/
public StatsSummary getStateSizeStats() {
return stateSize;
}
/**
* Returns the summary stats for the duration of completed checkpoints.
*
* @return Summary stats for the duration.
*/
public StatsSummary getEndToEndDurationStats() {
return duration;
}
public StatsSummary getProcessedDataStats() {
return processedData;
}
public StatsSummary getPersistedDataStats() {
return persistedData;
}
}