Fix channel garbage collection issue KIKIMR-20525

1 files changed, 6 insertions, 1 deletions

diff --git a/ydb/core/blob_depot/data_load.cpp b/ydb/core/blob_depot/data_load.cpp
index 23fd922f73..8cec6e3f57 100644
--- a/ydb/core/blob_depot/data_load.cpp
+++ b/ydb/core/blob_depot/data_load.cpp
@@ -77,8 +77,13 @@ namespace NKikimr::NBlobDepot {
 
         // prepare records for all groups in history
         for (const auto& channel : Self->Info()->Channels) {
+            Y_ABORT_UNLESS(channel.Channel < Self->Channels.size());
+            if (Self->Channels[channel.Channel].ChannelKind != NKikimrBlobDepot::TChannelKind::Data) {
+                continue; // skip non-data channels
+            }
             for (const auto& entry : channel.History) {
-                RecordsPerChannelGroup.try_emplace(std::make_tuple(channel.Channel, entry.GroupID), channel.Channel, entry.GroupID);
+                RecordsPerChannelGroup.try_emplace(std::make_tuple(channel.Channel, entry.GroupID), channel.Channel,
+                    entry.GroupID);
             }
         }