diff --git a/pdb-ui/src/main/java/org/lucares/pdbui/PdbWebapp.java b/pdb-ui/src/main/java/org/lucares/pdbui/PdbWebapp.java
index 5790a24..015a51c 100644
--- a/pdb-ui/src/main/java/org/lucares/pdbui/PdbWebapp.java
+++ b/pdb-ui/src/main/java/org/lucares/pdbui/PdbWebapp.java
@@ -1,10 +1,29 @@
 package org.lucares.pdbui;
 
+import java.util.concurrent.TimeUnit;
+
 import org.springframework.boot.SpringApplication;
 
 public class PdbWebapp {
 
 	public static void main(final String[] args) throws Exception {
 		SpringApplication.run(MySpringConfiguration.class, args);
+		
+		Thread t = new Thread(()-> {
+			
+			
+			while(true){
+				try{
+					TimeUnit.MINUTES.sleep(10);
+				}catch(InterruptedException e)
+				{
+					// ignore
+				}
+				System.gc();
+			}
+		});
+		t.setDaemon(true);
+		t.setName("periodic-gc");
+		t.start();
 	}
 }