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io.trino.tests.product.launcher.env.StatisticsFetcher 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.tests.product.launcher.env;
import com.github.dockerjava.api.async.ResultCallback;
import com.github.dockerjava.api.model.CpuUsageConfig;
import com.github.dockerjava.api.model.MemoryStatsConfig;
import com.github.dockerjava.api.model.StatisticNetworksConfig;
import com.github.dockerjava.api.model.Statistics;
import io.airlift.log.Logger;
import io.airlift.units.DataSize;
import org.testcontainers.DockerClientFactory;
import java.io.Closeable;
import java.io.IOException;
import java.io.UncheckedIOException;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Optional;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicReference;
import java.util.function.Supplier;
import java.util.stream.Stream;
import static com.google.common.base.MoreObjects.firstNonNull;
import static io.airlift.units.DataSize.Unit.GIGABYTE;
import static io.trino.tests.product.launcher.env.StatisticsFetcher.Stats.statisticsAreEmpty;
import static java.lang.String.format;
import static java.util.Collections.emptyList;
import static java.util.Objects.requireNonNull;
public class StatisticsFetcher
implements AutoCloseable
{
private final String containerId;
private static final Logger log = Logger.get(StatisticsFetcher.class);
private final String containerLogicalName;
private final AtomicReference lastStats = new AtomicReference<>(new Stats());
private final AtomicBoolean started = new AtomicBoolean(false);
private final StatisticsCallback callback;
StatisticsFetcher(String containerId, String containerLogicalName)
{
this.containerId = requireNonNull(containerId, "containerId is null");
this.containerLogicalName = requireNonNull(containerLogicalName, "containerLogicalName is null");
this.callback = new StatisticsCallback();
}
public Stats get()
{
return lastStats.get();
}
public void start()
{
if (started.compareAndSet(false, true)) {
DockerClientFactory.lazyClient()
.statsCmd(containerId)
.exec(callback);
log.info("Started listening for container %s statistics stream...", containerLogicalName);
}
}
@Override
public void close()
{
try {
callback.close();
}
catch (IOException e) {
log.warn(e, "Caught exception while closing fetcher for container %s", containerLogicalName);
}
}
public static StatisticsFetcher create(DockerContainer container)
{
return new StatisticsFetcher(container.getContainerId(), container.getLogicalName());
}
private Stats toStats(Statistics statistics, Stats previousStats)
{
if (statisticsAreEmpty(statistics)) {
return previousStats;
}
Stats stats = new Stats();
stats.systemCpuUsage = firstNonNull(statistics.getCpuStats().getSystemCpuUsage(), -1L);
stats.totalCpuUsage = Optional.ofNullable(statistics.getCpuStats().getCpuUsage()).map(CpuUsageConfig::getTotalUsage).orElse(-1L);
stats.cpuUsagePerc = 0.0;
if (previousStats.systemCpuUsage != -1 && previousStats.totalCpuUsage != -1) {
double usageCpuDelta = stats.totalCpuUsage - previousStats.totalCpuUsage;
double systemCpuDelta = stats.systemCpuUsage - previousStats.systemCpuUsage;
if (usageCpuDelta > 0.0 && systemCpuDelta > 0.0) {
stats.cpuUsagePerc = usageCpuDelta / systemCpuDelta * Optional.ofNullable(statistics.getCpuStats().getCpuUsage().getPercpuUsage()).map(List::size).orElse(1) * 100;
}
}
MemoryStatsConfig memoryStats = statistics.getMemoryStats();
stats.memoryLimit = DataSize.ofBytes(firstNonNull(memoryStats.getLimit(), 0L)).to(GIGABYTE);
stats.memoryUsage = DataSize.ofBytes(firstNonNull(memoryStats.getUsage(), 0L)).to(GIGABYTE);
stats.memoryUsagePerc = 100.0 * firstNonNull(memoryStats.getUsage(), 0L) / firstNonNull(memoryStats.getLimit(), 1L);
stats.pids = firstNonNull(statistics.getPidsStats().getCurrent(), -1L);
Supplier> stream = () -> Optional.ofNullable(statistics.getNetworks()).map(Map::values).orElse(emptyList()).stream();
stats.networkReceived = DataSize.ofBytes(stream.get().map(StatisticNetworksConfig::getRxBytes).filter(Objects::nonNull).reduce(0L, Long::sum)).succinct();
stats.networkSent = DataSize.ofBytes(stream.get().map(StatisticNetworksConfig::getTxBytes).filter(Objects::nonNull).reduce(0L, Long::sum)).succinct();
return stats;
}
private class StatisticsCallback
implements ResultCallback
{
private final AtomicBoolean closed = new AtomicBoolean(false);
private Closeable stream;
@Override
public void onNext(Statistics statistics)
{
lastStats.getAndUpdate(previousStats -> toStats(statistics, previousStats));
}
@Override
public void onStart(Closeable stream)
{
this.stream = requireNonNull(stream, "stream is null");
}
@Override
public void onError(Throwable throwable)
{
if (!closed.get()) {
log.warn(throwable, "Caught exception while processing statistics");
try {
close();
}
catch (IOException e) {
throw new RuntimeException(e);
}
}
}
@Override
public void onComplete()
{
try {
close();
}
catch (IOException e) {
throw new UncheckedIOException(e);
}
}
@Override
public void close()
throws IOException
{
if (closed.compareAndSet(false, true)) {
if (stream != null) {
stream.close();
}
log.info("Stopped listening for container %s stats", containerLogicalName);
}
}
}
public static class Stats
{
public static final List HEADER = List.of(
"container",
"cpu",
"mem",
"max mem",
"mem %",
"pids",
"net in",
"net out");
private long systemCpuUsage = -1;
private long totalCpuUsage = -1;
private double cpuUsagePerc;
private double memoryUsagePerc;
private DataSize memoryUsage;
private DataSize memoryLimit;
private long pids;
public DataSize networkReceived;
public DataSize networkSent;
public boolean areCalculated()
{
return cpuUsagePerc > 0.0;
}
public String[] toRow(String name)
{
if (!areCalculated()) {
return new String[] {name, "n/a"};
}
return new String[] {
name,
format("%.2f%%", cpuUsagePerc),
memoryLimit.toString(),
memoryUsage.toString(),
format("%.2f%%", memoryUsagePerc),
format("%d", pids),
format("%s", networkReceived),
format("%s", networkSent)
};
}
public static boolean statisticsAreEmpty(Statistics statistics)
{
return statistics == null || statistics.getRead().equals("0001-01-01T00:00:00Z");
}
}
}
