From 6551911f361e05eae28f40e82dcd316ad9d0e1d6 Mon Sep 17 00:00:00 2001
From: Alexander Rutkovsky <alexvru@ydb.tech>
Date: Fri, 10 Jan 2025 19:56:40 +0300
Subject: [PATCH] Fix group resolver bug (#13282)

---
 .../blobstorage/nodewarden/node_warden_group_resolver.cpp    | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/ydb/core/blobstorage/nodewarden/node_warden_group_resolver.cpp b/ydb/core/blobstorage/nodewarden/node_warden_group_resolver.cpp
index 8eff8ea0836c..950241c76445 100644
--- a/ydb/core/blobstorage/nodewarden/node_warden_group_resolver.cpp
+++ b/ydb/core/blobstorage/nodewarden/node_warden_group_resolver.cpp
@@ -336,9 +336,12 @@ namespace NKikimr::NStorage {
         if (const auto it = Groups.find(r.GetGroupId()); it != Groups.end() && it->second.Group) {
             record.MutableGroup()->CopyFrom(*it->second.Group);
         }
+        THashSet<TGroupId> groupsAdded;
         for (const auto& [key, value] : LocalVDisks) {
             if (const auto& r = value.RuntimeData; r && !r->DonorMode) {
-                record.AddStartedGroupIds(r->GroupInfo->GroupID.GetRawId());
+                if (const auto& groupId = r->GroupInfo->GroupID; groupsAdded.insert(groupId).second) {
+                    record.AddStartedGroupIds(groupId.GetRawId());
+                }
             }
         }
         Send(ev->Sender, res.release(), 0, ev->Cookie);