Optimize graph relation filtering and fix concurrent connection storms

server/src/handlers.rs

@@ -511,19 +511,8 @@ impl MemoryHandler {
                     "delete_relations" => {
                         let req = parse_tool!(args.clone(), id, DeleteRelationsTool);
                         self.state.modify_graph(|master| {
-                            let mut to_rem = HashSet::new();
-                            for r in req.relations {
-                                to_rem.insert(format!(
-                                    "{}|{}|{}|{}",
-                                    r.from, r.to, r.relation_type, r.namespace
-                                ));
-                            }
-                            master.relations.retain(|r| {
-                                !to_rem.contains(&format!(
-                                    "{}|{}|{}|{}",
-                                    r.from, r.to, r.relation_type, r.namespace
-                                ))
-                            });
+                            let to_rem: HashSet<_> = req.relations.into_iter().collect();
+                            master.relations.retain(|r| !to_rem.contains(r));
                         });
                         Ok("Relations deleted".to_string())
                     }