codelipenghui commented on a change in pull request #6615: Export
ManagedLedgerCache metric to prometheus
URL: https://github.com/apache/pulsar/pull/6615#discussion_r399739354
##########
File path:
pulsar-broker/src/main/java/org/apache/pulsar/broker/stats/prometheus/PrometheusMetricsGenerator.java
##########
@@ -75,12 +81,54 @@ public static void generate(PulsarService pulsar, boolean
includeTopicMetrics, b
FunctionsStatsGenerator.generate(pulsar.getWorkerService(),
pulsar.getConfiguration().getClusterName(), stream);
+ generateBrokerBasicMetrics(pulsar, stream);
+
out.write(buf.array(), buf.arrayOffset(), buf.readableBytes());
} finally {
buf.release();
}
}
+ private static void generateBrokerBasicMetrics(PulsarService pulsar,
SimpleTextOutputStream stream) {
+ String clusterName = pulsar.getConfiguration().getClusterName();
+ // generate managedLedgerCache metrics
+ parseMetricsToPrometheusMetrics(new
ManagedLedgerCacheMetrics(pulsar).generate(),
+ clusterName, "managedLedgerCache", Collector.Type.GAUGE,
stream);
+
+ // generate managerLedger metrics
+ parseMetricsToPrometheusMetrics(new
ManagedLedgerMetrics(pulsar).generate(),
+ clusterName, "manageLedger", Collector.Type.GAUGE, stream);
+
+ // generate brokerService topic metrics
+
parseMetricsToPrometheusMetrics(pulsar.getBrokerService().getTopicMetrics(),
+ clusterName, "brokerService", Collector.Type.GAUGE, stream);
+
+ // generate load manager loadBalancing metrics
+
parseMetricsToPrometheusMetrics(pulsar.getLoadManager().get().getLoadBalancingMetrics(),
+ clusterName, "loadBalancing", Collector.Type.GAUGE, stream);
+ }
+
+ private static void parseMetricsToPrometheusMetrics(Collection<Metrics>
metrics, String cluster, String metricName,
+ Collector.Type
metricType, SimpleTextOutputStream stream) {
+ stream.write("# TYPE ").write(metricName).write('
').write(getTypeStr(metricType)).write('\n');
+ for (Metrics metrics1 : metrics) {
+ String labels = "{cluster=\"" + cluster + "\"";
Review comment:
Can it be replaced by stream.write?
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