From 8c3b8b619c445801c53759337e913b03d3785f04 Mon Sep 17 00:00:00 2001
From: Alexey Efimov <xeno@ydb.tech>
Date: Fri, 2 Aug 2024 13:28:24 +0000
Subject: [PATCH] hotfix for hotkeys

---
 ydb/core/viewer/json_hotkeys.h | 30 ++++++++++++++++--------------
 1 file changed, 16 insertions(+), 14 deletions(-)

diff --git a/ydb/core/viewer/json_hotkeys.h b/ydb/core/viewer/json_hotkeys.h
index b4922a4af965..055a175b0d6b 100644
--- a/ydb/core/viewer/json_hotkeys.h
+++ b/ydb/core/viewer/json_hotkeys.h
@@ -85,23 +85,25 @@ class TJsonHotkeys : public TViewerPipeClient<TJsonHotkeys> {
             const auto& pathDescription = pbRecord.GetPathDescription();
             const auto& partitions = pathDescription.GetTablePartitions();
             const auto& metrics = pathDescription.GetTablePartitionMetrics();
-            TVector<std::pair<ui64, int>> tabletsOrder;
+            if (!metrics.empty()) {
+                TVector<std::pair<ui64, int>> tabletsOrder;
 
-            for (int i = 0; i < metrics.size(); ++i) {
-                tabletsOrder.emplace_back(metrics.Get(i).GetCPU(), i);
-            }
-
-            Sort(tabletsOrder, std::greater<std::pair<ui64, int>>());
-            ui32 tablets = (ui32) std::max(1, (int) std::ceil(PollingFactor * tabletsOrder.size()));
+                for (int i = 0; i < metrics.size(); ++i) {
+                    tabletsOrder.emplace_back(metrics.Get(i).GetCPU(), i);
+                }
 
-            for (ui32 i = 0; i < tablets; ++i) {
-                THolder<TEvDataShard::TEvGetDataHistogramRequest> request = MakeHolder<TEvDataShard::TEvGetDataHistogramRequest>();
-                if (EnableSampling) {
-                    request->Record.SetCollectKeySampleMs(30000); // 30 sec
+                Sort(tabletsOrder, std::greater<std::pair<ui64, int>>());
+                ui32 tablets = (ui32) std::max(1, (int) std::ceil(PollingFactor * tabletsOrder.size()));
+
+                for (ui32 i = 0; i < tablets; ++i) {
+                    THolder<TEvDataShard::TEvGetDataHistogramRequest> request = MakeHolder<TEvDataShard::TEvGetDataHistogramRequest>();
+                    if (EnableSampling) {
+                        request->Record.SetCollectKeySampleMs(30000); // 30 sec
+                    }
+                    request->Record.SetActualData(true);
+                    ui64 datashardId = partitions.Get(tabletsOrder[i].second).GetDatashardId();
+                    SendRequestToPipe(ConnectTabletPipe(datashardId), request.Release());
                 }
-                request->Record.SetActualData(true);
-                ui64 datashardId = partitions.Get(tabletsOrder[i].second).GetDatashardId();
-                SendRequestToPipe(ConnectTabletPipe(datashardId), request.Release());
             }
         }