davsclaus commented on code in PR #27507:
URL: https://github.com/apache/camel/pull/27507#discussion_r4210249685


##########
components/camel-debezium/camel-debezium-common/camel-debezium-common-component/src/main/java/org/apache/camel/component/debezium/DebeziumConsumer.java:
##########
@@ -115,10 +117,20 @@ Throwable getEngineFailure() {
         return engineFailure;
     }
 
+    boolean isEngineReady() {
+        return engineReady;
+    }
+
     private DebeziumEngine<ChangeEvent<SourceRecord, SourceRecord>> 
createDbzEngine() {
         return DebeziumEngine.create(Connect.class)
                 
.using(configuration.createDebeziumConfiguration().asProperties())
                 .using(this::onEngineCompleted)
+                .using(new DebeziumEngine.ConnectorCallback() {
+                    @Override
+                    public void pollingStarted() {
+                        engineReady = true;
+                    }
+                })

Review Comment:
   Optional: `engineReady` is never cleared once set. If the engine completes 
successfully on its own (not on request), the check keeps reporting `UP` while 
no change events are consumed. That was already the case before this PR, but 
overriding `pollingStopped()` would close it cheaply:
   
   ```java
   @Override
   public void pollingStopped() {
       engineReady = false;
   }
   ```



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