Improvements to the transaction list (ydb-platform#12060)

Author: Alek5andr-Kotov

ydb/core/persqueue/pq_impl_app.cpp

@@ -14,11 +14,11 @@ using EState = NKikimrPQ::TTransaction::EState;
 
 namespace {
     struct TTransactionSnapshot {
-        TTransactionSnapshot(const TDistributedTransaction& tx)
+        explicit TTransactionSnapshot(const TDistributedTransaction& tx)
             : TxId(tx.TxId)
             , Step(tx.Step)
             , State(tx.State)
-            , MinStep(tx.MaxStep)
+            , MinStep(tx.MinStep)
             , MaxStep(tx.MaxStep) {
         }
 
@@ -124,7 +124,7 @@ class TMonitoringProxy : public TActorBootstrapped<TMonitoringProxy> {
                                                 }
                                             }
                                             TABLED() {str << tx.Step;}
-                                            TABLED() {str << (int)tx.State;}
+                                            TABLED() {str << NKikimrPQ::TTransaction_EState_Name(tx.State);}
                                             TABLED() {str << tx.MinStep;}
                                             TABLED() {str << tx.MaxStep;}
                                         }
@@ -243,6 +243,15 @@ bool TPersQueue::OnRenderAppHtmlPage(NMon::TEvRemoteHttpInfo::TPtr ev, const TAc
         transactions.emplace_back(tx);
     }
 
+    auto isLess = [](const TTransactionSnapshot& lhs, const TTransactionSnapshot& rhs) {
+        auto makeValue = [](const TTransactionSnapshot& v) {
+            return std::make_tuple(v.Step, v.TxId);
+        };
+
+        return makeValue(lhs) < makeValue(rhs);
+    };
+    std::sort(transactions.begin(), transactions.end(), isLess);
+
     ctx.Register(new TMonitoringProxy(ev->Sender, ev->Get()->Query, std::move(res), CacheActor, TopicName,
         TabletID(), ResponseProxy.size(), std::move(config), std::move(transactions)));