From 38449e17323efd8b440d4da0cfd55e5d5b7f9222 Mon Sep 17 00:00:00 2001
From: Sophia Chen <sophia.chen@thetradedesk.com>
Date: Wed, 18 Dec 2024 16:01:20 +1100
Subject: [PATCH] 
 sch-UID2-4560-adding-gauge-for-number-of-request-processing-threads added
 gauge for event loop threads

---
 src/main/java/com/uid2/core/Main.java | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/src/main/java/com/uid2/core/Main.java b/src/main/java/com/uid2/core/Main.java
index 0ecf138..3e6d8ab 100644
--- a/src/main/java/com/uid2/core/Main.java
+++ b/src/main/java/com/uid2/core/Main.java
@@ -32,6 +32,7 @@
 import io.micrometer.core.instrument.config.MeterFilter;
 import io.micrometer.prometheus.PrometheusMeterRegistry;
 import io.micrometer.prometheus.PrometheusRenameFilter;
+import io.vertx.core.DeploymentOptions;
 import io.vertx.core.Vertx;
 import io.vertx.core.VertxOptions;
 import io.vertx.core.http.HttpServerOptions;
@@ -159,17 +160,19 @@ public static void main(String[] args) {
                 );
 
                 JwtService jwtService = new JwtService(config);
-                createServiceInstancesMetric();
                 coreVerticle = new CoreVerticle(cloudStorage, operatorKeyProvider, attestationService, attestationTokenService, enclaveIdProvider, operatorJWTTokenProvider, jwtService, cloudEncryptionKeyProvider);
             } catch (Exception e) {
                 System.out.println("failed to initialize core verticle: " + e.getMessage());
                 System.exit(-1);
             }
 
+            createVertxInstancesMetric();
+            createVertxEventLoopsMetric();
+
             vertx.deployVerticle(enclaveRotatingVerticle);
             vertx.deployVerticle(operatorRotatingVerticle);
             vertx.deployVerticle(cloudEncryptionKeyRotatingVerticle);
-            vertx.deployVerticle(coreVerticle);
+            vertx.deployVerticle(coreVerticle, new DeploymentOptions().setInstances(vertxServiceInstances));
         });
     }
 
@@ -212,12 +215,19 @@ private static void setupMetrics(MicrometerMetricsOptions metricOptions) {
                 .register(Metrics.globalRegistry);
     }
 
-    private static void createServiceInstancesMetric() {
+    private static void createVertxInstancesMetric() {
         Gauge.builder("uid2.core.vertx_service_instances", () -> vertxServiceInstances)
-                .description("gauge for number of request processing threads")
+                .description("gauge for number of vertx service instances requested")
                 .register(Metrics.globalRegistry);
     }
 
+    private static void createVertxEventLoopsMetric() {
+        Gauge.builder("uid2.core.vertx_event_loop_threads", () -> VertxOptions.DEFAULT_EVENT_LOOP_POOL_SIZE)
+                .description("gauge for number of vertx event loop threads")
+                .register(Metrics.globalRegistry);
+    }
+
+
     /*
     private static CommandLine parseArgs(String[] args) {
         final CLI cli = CLI.create("uid2-core")