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From GitBox <...@apache.org>
Subject [GitHub] [zookeeper] brian-brazil commented on a change in pull request #927: ZOOKEEPER-3091 Prometheus.io integration
Date Thu, 02 May 2019 11:10:03 GMT
brian-brazil commented on a change in pull request #927: ZOOKEEPER-3091 Prometheus.io integration
URL: https://github.com/apache/zookeeper/pull/927#discussion_r280373513
 
 

 ##########
 File path: zookeeper-server/src/main/java/org/apache/zookeeper/server/ZooKeeperServer.java
 ##########
 @@ -1383,4 +1392,85 @@ public void setResponseCachingEnabled(boolean isEnabled) {
     public ResponseCache getReadResponseCache() {
         return isResponseCachingEnabled ? readResponseCache : null;
     }
+
+    protected void registerMetrics() {
+        MetricsContext rootContext = ServerMetrics
+                .getMetrics()
+                .getMetricsProvider()
+                .getRootContext();
+
+        final ZKDatabase zkdb = this.getZKDatabase();
+        final ServerStats stats = this.serverStats();
+
+        rootContext.registerGauge("avg_latency", stats::getAvgLatency);
+
+        rootContext.registerGauge("max_latency", stats::getMaxLatency);
+        rootContext.registerGauge("min_latency", stats::getMinLatency);
+
+        rootContext.registerGauge("packets_received", stats::getPacketsReceived);
 
 Review comment:
   In that case you should expose it as untyped, rather than having the incorrect type.

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