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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.hadoop.ozone.container.common.impl;
import org.apache.commons.lang3.RandomUtils;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hdds.protocol.proto
.StorageContainerDatanodeProtocolProtos.ReportState;
import org.apache.hadoop.ozone.OzoneConfigKeys;
import org.apache.hadoop.ozone.container.common.interfaces
.ContainerReportManager;
import org.apache.hadoop.util.Time;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicLong;
import static org.apache.hadoop.hdds.scm.HddsServerUtil.getScmHeartbeatInterval;
/**
* Class wraps the container report operations on datanode.
* // TODO: support incremental/delta container report
*/
public class ContainerReportManagerImpl implements ContainerReportManager {
// Last non-empty container report time
private long lastContainerReportTime;
private final long containerReportInterval;
private final long heartbeatInterval;
private AtomicLong reportCount;
private static final ReportState NO_CONTAINER_REPORTSTATE =
ReportState.newBuilder()
.setState(ReportState.states.noContainerReports)
.setCount(0).build();
public ContainerReportManagerImpl(Configuration config) {
this.lastContainerReportTime = -1;
this.reportCount = new AtomicLong(0L);
this.containerReportInterval = config.getTimeDuration(
OzoneConfigKeys.OZONE_CONTAINER_REPORT_INTERVAL,
OzoneConfigKeys.OZONE_CONTAINER_REPORT_INTERVAL_DEFAULT,
TimeUnit.MILLISECONDS);
this.heartbeatInterval = getScmHeartbeatInterval(config);
}
public ReportState getContainerReportState() {
if (lastContainerReportTime < 0) {
return getFullContainerReportState();
} else {
// Add a random delay (0~30s) on top of the container report
// interval (60s) so tha the SCM is overwhelmed by the container reports
// sent in sync.
if (Time.monotonicNow() - lastContainerReportTime >
(containerReportInterval + getRandomReportDelay())) {
return getFullContainerReportState();
} else {
return getNoContainerReportState();
}
}
}
private ReportState getFullContainerReportState() {
ReportState.Builder rsBuilder = ReportState.newBuilder();
rsBuilder.setState(ReportState.states.completeContinerReport);
rsBuilder.setCount(reportCount.incrementAndGet());
this.lastContainerReportTime = Time.monotonicNow();
return rsBuilder.build();
}
private ReportState getNoContainerReportState() {
return NO_CONTAINER_REPORTSTATE;
}
private long getRandomReportDelay() {
return RandomUtils.nextLong(0, heartbeatInterval);
}
}
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