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Remove free memory and OS memory gauges

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This commit is contained in:
Ameya Lokare
2025-04-23 11:09:38 -07:00
committed by Chris Eager
parent eb89773819
commit d2ad003891
5 changed files with 1 additions and 183 deletions
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32
service/src/main/java/org/whispersystems/textsecuregcm/metrics/FreeMemoryGauge.java
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@@ -1,32 +0,0 @@
/*
* Copyright 2013-2020 Signal Messenger, LLC
* SPDX-License-Identifier: AGPL-3.0-only
*/
package org.whispersystems.textsecuregcm.metrics;
import static org.whispersystems.textsecuregcm.metrics.MetricsUtil.name;
import com.sun.management.OperatingSystemMXBean;
import io.micrometer.core.instrument.Gauge;
import io.micrometer.core.instrument.MeterRegistry;
import io.micrometer.core.instrument.binder.MeterBinder;
import java.lang.management.ManagementFactory;
public class FreeMemoryGauge implements MeterBinder {
private final OperatingSystemMXBean operatingSystemMXBean;
public FreeMemoryGauge() {
this.operatingSystemMXBean = (com.sun.management.OperatingSystemMXBean)
ManagementFactory.getOperatingSystemMXBean();
}
@Override
public void bindTo(final MeterRegistry registry) {
Gauge.builder(name(FreeMemoryGauge.class, "freeMemory"), operatingSystemMXBean,
OperatingSystemMXBean::getFreeMemorySize)
.register(registry);
}
}

3
service/src/main/java/org/whispersystems/textsecuregcm/metrics/MetricsUtil.java
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@@ -120,10 +120,7 @@ public class MetricsUtil {
public static void registerSystemResourceMetrics(final Environment environment) {
new ProcessorMetrics().bindTo(Metrics.globalRegistry);
new FreeMemoryGauge().bindTo(Metrics.globalRegistry);
new FileDescriptorMetrics().bindTo(Metrics.globalRegistry);
new OperatingSystemMemoryGauge("Buffers").bindTo(Metrics.globalRegistry);
new OperatingSystemMemoryGauge("Cached").bindTo(Metrics.globalRegistry);
new JvmMemoryMetrics().bindTo(Metrics.globalRegistry);
new JvmThreadMetrics().bindTo(Metrics.globalRegistry);

56
service/src/main/java/org/whispersystems/textsecuregcm/metrics/OperatingSystemMemoryGauge.java
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@@ -1,56 +0,0 @@
/*
* Copyright 2013-2020 Signal Messenger, LLC
* SPDX-License-Identifier: AGPL-3.0-only
*/
package org.whispersystems.textsecuregcm.metrics;
import static org.whispersystems.textsecuregcm.metrics.MetricsUtil.name;
import com.google.common.annotations.VisibleForTesting;
import io.micrometer.core.instrument.Gauge;
import io.micrometer.core.instrument.MeterRegistry;
import io.micrometer.core.instrument.binder.MeterBinder;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.util.Locale;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.stream.Stream;
public class OperatingSystemMemoryGauge implements MeterBinder {
private final String metricName;
private static final File MEMINFO_FILE = new File("/proc/meminfo");
private static final Pattern MEMORY_METRIC_PATTERN = Pattern.compile("^([^:]+):\\s+([0-9]+).*$");
public OperatingSystemMemoryGauge(final String metricName) {
this.metricName = metricName;
}
@Override
public void bindTo(MeterRegistry registry) {
final String metricName = this.metricName;
Gauge.builder(name(OperatingSystemMemoryGauge.class, metricName.toLowerCase(Locale.ROOT)), () -> {
try (final BufferedReader bufferedReader = new BufferedReader(new FileReader(MEMINFO_FILE))) {
return getValue(bufferedReader.lines(), metricName);
} catch (final IOException e) {
return 0L;
}
})
.register(registry);
}
@VisibleForTesting
static double getValue(final Stream<String> lines, final String metricName) {
return lines.map(MEMORY_METRIC_PATTERN::matcher)
.filter(Matcher::matches)
.filter(matcher -> metricName.equalsIgnoreCase(matcher.group(1)))
.map(matcher -> Double.parseDouble(matcher.group(2)))
.findFirst()
.orElse(0d);
}
}