diff --git a/java_tools/proxy_server/src/main/java/com/rusefi/server/Backend.java b/java_tools/proxy_server/src/main/java/com/rusefi/server/Backend.java
index 3d0568ecfa..91101609a2 100644
--- a/java_tools/proxy_server/src/main/java/com/rusefi/server/Backend.java
+++ b/java_tools/proxy_server/src/main/java/com/rusefi/server/Backend.java
@@ -110,6 +110,7 @@ public class Backend implements Closeable {
 
         new Thread(() -> {
             while (true) {
+                logger.info(getApplicationsCount() + " applications, " + getControllersCount() + " controllers");
                 runApplicationConnectionsCleanup();
                 BinaryProtocol.sleep(applicationTimeout);
             }
@@ -129,7 +130,7 @@ public class Backend implements Closeable {
             if (System.currentTimeMillis() - controller.getStream().getStreamStats().getPreviousPacketArrivalTime() > 20 * SECOND) {
                 if (controller.getTwoKindSemaphore().acquireForShortTermUsage()) {
                     try {
-                        controller.grabOutputs();
+                        controller.grabOutputs(this);
                     } finally {
                         controller.getTwoKindSemaphore().releaseFromShortTermUsage();
                     }
@@ -348,4 +349,9 @@ public class Backend implements Closeable {
         }
     }
 
+    public int getApplicationsCount() {
+        synchronized (lock) {
+            return applications.size();
+        }
+    }
 }
diff --git a/java_tools/proxy_server/src/main/java/com/rusefi/server/ControllerConnectionState.java b/java_tools/proxy_server/src/main/java/com/rusefi/server/ControllerConnectionState.java
index c987d73d97..ddf9ef5826 100644
--- a/java_tools/proxy_server/src/main/java/com/rusefi/server/ControllerConnectionState.java
+++ b/java_tools/proxy_server/src/main/java/com/rusefi/server/ControllerConnectionState.java
@@ -111,11 +111,12 @@ public class ControllerConnectionState {
         return sensorsHolder;
     }
 
-    public void grabOutputs() {
+    public void grabOutputs(Backend backend) {
         try {
             getOutputs();
         } catch (IOException e) {
-            close();
+            // todo: this is currently not covered by a unit test
+            backend.close(this);
         }
     }
 }
diff --git a/java_tools/proxy_server/src/main/java/com/rusefi/server/Monitoring.java b/java_tools/proxy_server/src/main/java/com/rusefi/server/Monitoring.java
index 6d7aee72a0..97e646ef90 100644
--- a/java_tools/proxy_server/src/main/java/com/rusefi/server/Monitoring.java
+++ b/java_tools/proxy_server/src/main/java/com/rusefi/server/Monitoring.java
@@ -37,6 +37,8 @@ public class Monitoring {
         builder.add("sessions", Backend.totalSessions.get());
         builder.add("serverPortForApplications", backend.serverPortForApplications);
         builder.add("serverPortForControllers", backend.serverPortForControllers);
+        builder.add("applicationsCount", backend.getApplicationsCount());
+        builder.add("controllersCount", backend.getControllersCount());
 
         return new RsJson(builder.build());
     }