davsclaus commented on code in PR #28729:
URL: https://github.com/apache/camel/pull/28729#discussion_r4452447623


##########
components/camel-micrometer/src/main/java/org/apache/camel/component/micrometer/eventnotifier/MicrometerExchangeEventNotifier.java:
##########
@@ -103,6 +112,17 @@ protected void doStart() throws Exception {
 
         inflightRepository = getCamelContext().getInflightRepository();
 
+        // Register once at startup — backing value updated via AtomicLong on 
each exchange
+        if (recordLastExchangeTimestamp) {
+            Meter meter = Gauge.builder(
+                    MicrometerConstants.CAMEL_EXCHANGE_LAST_TIME_METER_NAME,
+                    lastExchangeTimestampHolder,
+                    AtomicLong::get)
+                    .description("Last exchange processed time in milliseconds 
since the Unix epoch")
+                    .register(getMeterRegistry());
+            
meterMap.put(MicrometerConstants.CAMEL_EXCHANGE_LAST_TIME_METER_NAME, meter);

Review Comment:
   Please disregard this one. Several CamelContexts in the same application is 
not a supported setup anymore (that was the old OSGi world), so the gauge does 
not need the `camelContext` tag. No change needed here.
   
   _Claude Code on behalf of Claus Ibsen._



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