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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.config.server.metrics;
import com.github.tomakehurst.wiremock.junit.WireMockRule;
import java.io.IOException;
import java.net.URI;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.List;
import java.util.Map;
import java.util.stream.Stream;
import org.junit.Rule;
import org.junit.Test;
import static com.github.tomakehurst.wiremock.client.WireMock.aResponse;
import static com.github.tomakehurst.wiremock.client.WireMock.get;
import static com.github.tomakehurst.wiremock.client.WireMock.stubFor;
import static com.github.tomakehurst.wiremock.client.WireMock.urlEqualTo;
import static com.github.tomakehurst.wiremock.core.WireMockConfiguration.options;
import static org.junit.Assert.assertEquals;
public class ClusterSearchNodeMetricsRetrieverTest {
@Rule
public final WireMockRule wireMock = new WireMockRule(options().dynamicPort(), true);
@Test
public void testMetricAggregation() throws IOException {
List<URI> hosts = Stream.of(1, 2)
.map(item -> URI.create("http://localhost:" + wireMock.port() + "/metrics" + item + "/v2/values"))
.toList();
stubFor(get(urlEqualTo("/metrics1/v2/values"))
.willReturn(aResponse()
.withStatus(200)
.withBody(nodeMetrics("_1"))));
stubFor(get(urlEqualTo("/metrics2/v2/values"))
.willReturn(aResponse()
.withStatus(200)
.withBody(nodeMetrics("_2"))));
String expectedClusterNameContent = "content/content/0/0";
String expectedClusterNameMusic = "content/music/0/0";
Map<String, SearchNodeMetricsAggregator> aggregatorMap = new ClusterSearchNodeMetricsRetriever().requestMetricsGroupedByCluster(hosts);
compareAggregators(
new SearchNodeMetricsAggregator()
.addDocumentReadyCount(1275)
.addDocumentActiveCount(1275)
.addDocumentTotalCount(1275)
.addDocumentDiskUsage(14781856)
.addResourceDiskUsageAverage(0.0009083386306)
.addResourceMemoryUsageAverage(0.0183488434436),
aggregatorMap.get(expectedClusterNameContent)
);
compareAggregators(
new SearchNodeMetricsAggregator()
.addDocumentReadyCount(3008)
.addDocumentActiveCount(3008)
.addDocumentTotalCount(3008)
.addDocumentDiskUsage(331157)
.addResourceDiskUsageAverage(0.0000152263558)
.addResourceMemoryUsageAverage(0.0156505524171),
aggregatorMap.get(expectedClusterNameMusic)
);
wireMock.stop();
}
private String nodeMetrics(String extension) throws IOException {
return Files.readString(Path.of("src/test/resources/metrics/node_metrics" + extension + ".json"));
}
// Same tolerance value as used internally in MetricsAggregator.isZero
private static final double metricsTolerance = 0.001;
private void compareAggregators(SearchNodeMetricsAggregator expected, SearchNodeMetricsAggregator actual) {
assertEquals(expected.aggregateDocumentDiskUsage(), actual.aggregateDocumentDiskUsage(), metricsTolerance);
}
}
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