From b7776e48ac773c67ae55448b0f7348d587c7c9e1 Mon Sep 17 00:00:00 2001
From: Barry Nouwt <barry.nouwt@tno.nl>
Date: Fri, 18 Jul 2025 13:22:31 +0200
Subject: [PATCH] Notify SCs when a KER has gone.

This allows them to update their OtherKnowledgeBaseStore accordingly.
---
 .../runtime/messaging/RemoteKerConnectionManager.java      | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/smart-connector/src/main/java/eu/knowledge/engine/smartconnector/runtime/messaging/RemoteKerConnectionManager.java b/smart-connector/src/main/java/eu/knowledge/engine/smartconnector/runtime/messaging/RemoteKerConnectionManager.java
index 63ba0a47c..a8cb82aac 100644
--- a/smart-connector/src/main/java/eu/knowledge/engine/smartconnector/runtime/messaging/RemoteKerConnectionManager.java
+++ b/smart-connector/src/main/java/eu/knowledge/engine/smartconnector/runtime/messaging/RemoteKerConnectionManager.java
@@ -144,6 +144,13 @@ private synchronized void queryKnowledgeDirectory() {
 				LOG.info("Removing peer that is now gone: {}", e.getValue().getRemoteKerUri());
 				it.remove();
 				this.unavailableRemoteKerConnections.remove(e.getKey());
+
+				// make sure all SCs are notified correctly. We use fake/empty details for that.
+				KnowledgeEngineRuntimeDetails details = new KnowledgeEngineRuntimeDetails();
+				details.setRuntimeId(e.getValue().getRemoteKerUri().toString());
+				details.setSmartConnectorIds(new ArrayList<>());
+				e.getValue().updateKerDetails(details);
+
 			}
 		}
 		this.knowledgeDirectoryUpdateCooldownEnds = new Date(