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Add Streaming metrics #62

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Add Streaming metrics #62

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32 changes: 32 additions & 0 deletions common/src/main/java/com/zegelin/cassandra/exporter/FactoriesSupplier.java
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,8 @@
import com.zegelin.prometheus.domain.Labels;

import javax.management.*;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.*;
import java.util.concurrent.TimeUnit;
import java.util.function.Function;
Expand Down Expand Up @@ -179,6 +181,30 @@ private Factory clientMetricFactory(final FactoryBuilder.CollectorConstructor co
.build();
}

private Optional<String> getHostname(String ip) {
try {
return Optional.of(InetAddress.getByName(ip).getHostName());
} catch (UnknownHostException e) {
return Optional.empty();
}
}

private Factory clientStreamingMetricFactory(final FactoryBuilder.CollectorConstructor collectorConstructor, final String jmxName, final String familyNameSuffix, final String help) {
final ObjectName objectNamePattern = format("org.apache.cassandra.metrics:type=Streaming,name=%s,scope=*", jmxName);
final String metricFamilyName = String.format("stream_%s", familyNameSuffix);

return new FactoryBuilder(collectorConstructor, objectNamePattern, metricFamilyName)
.withHelp(help)
.withModifier((keyPropertyList, labels) -> {
final String scope = keyPropertyList.get("scope");
labels.put("partner_endpoint", scope);
getHostname(scope).ifPresent(hostname -> labels.put("partner_hostname", hostname));
return true;
})
.build();

}

private Factory clientRequestMetricFactory(final FactoryBuilder.CollectorConstructor collectorConstructor, final String jmxName, final String familyNameSuffix, final String help) {
final ObjectName objectNamePattern = format("org.apache.cassandra.metrics:type=ClientRequest,name=%s,scope=*", jmxName);
final String metricFamilyName = String.format("client_request_%s", familyNameSuffix);
Expand Down Expand Up @@ -799,6 +825,12 @@ public List<Factory> get() {
builder.add(threadPoolMetric(functionalCollectorConstructor(numericGaugeAsGauge()), "MaxPoolSize", "maximum_tasks", null));
}

// org.apache.cassandra.metrics.Streaming
{
builder.add(clientStreamingMetricFactory(functionalCollectorConstructor(counterAsCounter()), "IncomingBytes", "incoming_bytes", "Streaming incoming bytes"));
builder.add(clientStreamingMetricFactory(functionalCollectorConstructor(counterAsCounter()), "OutgoingBytes", "outgoing_bytes", "Streaming outgoing bytes"));
}


return builder.build();
}
Expand Down