diff --git a/ydb/core/tx/columnshard/columnshard__progress_tx.cpp b/ydb/core/tx/columnshard/columnshard__progress_tx.cpp
index 557693070328..9b944b27b916 100644
--- a/ydb/core/tx/columnshard/columnshard__progress_tx.cpp
+++ b/ydb/core/tx/columnshard/columnshard__progress_tx.cpp
@@ -57,6 +57,10 @@ class TColumnShard::TTxProgressTx: public TTransactionBase<TColumnShard> {
             Self->ProgressTxController->FinishPlannedTx(txId, txc);
             Self->Counters.GetTabletCounters()->IncCounter(COUNTER_PLANNED_TX_COMPLETED);
         }
+        Self->ProgressTxInFlight = false;
+        if (!!Self->ProgressTxController->GetPlannedTx()) {
+            Self->EnqueueProgressTx(ctx);
+        }
         return true;
     }
 
@@ -76,10 +80,6 @@ class TColumnShard::TTxProgressTx: public TTransactionBase<TColumnShard> {
         if (LastCompletedTx) {
             Self->LastCompletedTx = std::max(*LastCompletedTx, Self->LastCompletedTx);
         }
-        Self->ProgressTxInFlight = false;
-        if (!!Self->ProgressTxController->GetPlannedTx()) {
-            Self->EnqueueProgressTx(ctx);
-        }
         Self->SetupIndexation();
     }
 };
diff --git a/ydb/core/tx/columnshard/columnshard_impl.cpp b/ydb/core/tx/columnshard/columnshard_impl.cpp
index 1875a14d9763..efb73296622d 100644
--- a/ydb/core/tx/columnshard/columnshard_impl.cpp
+++ b/ydb/core/tx/columnshard/columnshard_impl.cpp
@@ -477,13 +477,6 @@ void TColumnShard::RunDropTable(const NKikimrTxColumnShard::TDropTable& dropProt
 
     LOG_S_DEBUG("DropTable for pathId: " << pathId << " at tablet " << TabletID());
     TablesManager.DropTable(pathId, version, db);
-
-    // TODO: Allow to read old snapshots after DROP
-    TBlobGroupSelector dsGroupSelector(Info());
-    NOlap::TDbWrapper dbTable(txc.DB, &dsGroupSelector);
-    THashSet<TWriteId> writesToAbort = InsertTable->DropPath(dbTable, pathId);
-
-    TryAbortWrites(db, dbTable, std::move(writesToAbort));
 }
 
 void TColumnShard::RunAlterStore(const NKikimrTxColumnShard::TAlterStore& proto, const NOlap::TSnapshot& version,
diff --git a/ydb/core/tx/columnshard/engines/changes/with_appended.cpp b/ydb/core/tx/columnshard/engines/changes/with_appended.cpp
index e24fa9e8988c..24d44eb34587 100644
--- a/ydb/core/tx/columnshard/engines/changes/with_appended.cpp
+++ b/ydb/core/tx/columnshard/engines/changes/with_appended.cpp
@@ -19,7 +19,7 @@ void TChangesWithAppend::DoWriteIndexOnExecute(NColumnShard::TColumnShard* self,
     }
     const auto predRemoveDroppedTable = [self](const TWritePortionInfoWithBlobsResult& item) {
         auto& portionInfo = item.GetPortionResult();
-        if (!!self && (!self->TablesManager.HasTable(portionInfo.GetPathId()) || self->TablesManager.GetTable(portionInfo.GetPathId()).IsDropped())) {
+        if (!!self && !self->TablesManager.HasTable(portionInfo.GetPathId(), false)) {
             AFL_WARN(NKikimrServices::TX_COLUMNSHARD)("event", "skip_inserted_data")("reason", "table_removed")("path_id", portionInfo.GetPathId());
             return true;
         } else {
diff --git a/ydb/core/tx/data_events/shard_writer.cpp b/ydb/core/tx/data_events/shard_writer.cpp
index 0158527fee49..4fcd62f3b12f 100644
--- a/ydb/core/tx/data_events/shard_writer.cpp
+++ b/ydb/core/tx/data_events/shard_writer.cpp
@@ -18,7 +18,9 @@ namespace NKikimr::NEvWrite {
 
     void TWritersController::OnSuccess(const ui64 shardId, const ui64 writeId, const ui32 writePartId) {
         WriteIds[WritesIndex.Inc() - 1] = TWriteIdForShard(shardId, writeId, writePartId);
+        Counters->OnCSReply(TMonotonic::Now() - StartInstant);
         if (!WritesCount.Dec()) {
+            Counters->OnFullReply(TMonotonic::Now() - StartInstant);
             auto req = MakeHolder<NLongTxService::TEvLongTxService::TEvAttachColumnShardWrites>(LongTxId);
             for (auto&& i : WriteIds) {
                 req->AddWrite(i.GetShardId(), i.GetWriteId());
@@ -28,6 +30,7 @@ namespace NKikimr::NEvWrite {
     }
 
     void TWritersController::OnFail(const Ydb::StatusIds::StatusCode code, const TString& message) {
+        Counters->OnCSFailed(code);
         NYql::TIssues issues;
         issues.AddIssue(message);
         LongTxActorId.Send(LongTxActorId, new TEvPrivate::TEvShardsWriteResult(code, issues));
diff --git a/ydb/core/tx/data_events/shard_writer.h b/ydb/core/tx/data_events/shard_writer.h
index d7abe2e2a3ed..7faf74d331c3 100644
--- a/ydb/core/tx/data_events/shard_writer.h
+++ b/ydb/core/tx/data_events/shard_writer.h
@@ -8,6 +8,7 @@
 #include <ydb/core/tx/long_tx_service/public/events.h>
 #include <ydb/library/actors/core/actor_bootstrapped.h>
 #include <ydb/library/actors/wilson/wilson_profile_span.h>
+#include <ydb/core/tx/columnshard/counters/common/owner.h>
 
 
 namespace NKikimr::NEvWrite {
@@ -22,11 +23,54 @@ class TWriteIdForShard {
     TWriteIdForShard(const ui64 shardId, const ui64 writeId, const ui32 writePartId)
         : ShardId(shardId)
         , WriteId(writeId)
-        , WritePartId(writePartId)
-    {
+        , WritePartId(writePartId) {
+    }
+};
+
+class TCSUploadCounters: public NColumnShard::TCommonCountersOwner {
+private:
+    using TBase = NColumnShard::TCommonCountersOwner;
+    NMonitoring::TDynamicCounters::TCounterPtr RequestsCount;
+    NMonitoring::THistogramPtr CSReplyDuration;
+    NMonitoring::THistogramPtr FullReplyDuration;
+    NMonitoring::THistogramPtr BytesDistribution;
+    NMonitoring::THistogramPtr RowsDistribution;
+    NMonitoring::TDynamicCounters::TCounterPtr RowsCount;
+    NMonitoring::TDynamicCounters::TCounterPtr BytesCount;
+    NMonitoring::TDynamicCounters::TCounterPtr FailsCount;
+public:
+    TCSUploadCounters()
+        : TBase("CSUpload")
+        , RequestsCount(TBase::GetDeriviative("Requests"))
+        , CSReplyDuration(TBase::GetHistogram("Replies/Shard/DurationMs", NMonitoring::ExponentialHistogram(15, 2, 1)))
+        , FullReplyDuration(TBase::GetHistogram("Replies/Full/DurationMs", NMonitoring::ExponentialHistogram(15, 2, 1)))
+        , BytesDistribution(TBase::GetHistogram("Requests/Bytes", NMonitoring::ExponentialHistogram(15, 2, 1024)))
+        , RowsDistribution(TBase::GetHistogram("Requests/Rows", NMonitoring::ExponentialHistogram(15, 2, 16)))
+        , RowsCount(TBase::GetDeriviative("Rows"))
+        , BytesCount(TBase::GetDeriviative("Bytes"))
+        , FailsCount(TBase::GetDeriviative("Fails")) {
+
+    }
+
+    void OnRequest(const ui64 rows, const ui64 bytes) const {
+        BytesDistribution->Collect(bytes);
+        RowsDistribution->Collect(rows);
+        BytesCount->Add(bytes);
+        RowsCount->Add(rows);
+    }
+
+    void OnCSFailed(const Ydb::StatusIds::StatusCode /*code*/) {
+        FailsCount->Add(1);
     }
-};    
 
+    void OnCSReply(const TDuration d) const {
+        CSReplyDuration->Collect(d.MilliSeconds());
+    }
+
+    void OnFullReply(const TDuration d) const {
+        FullReplyDuration->Collect(d.MilliSeconds());
+    }
+};
 // External transaction controller class
 class TWritersController {
 private:
@@ -34,7 +78,9 @@ class TWritersController {
     TAtomicCounter WritesIndex = 0;
     NActors::TActorIdentity LongTxActorId;
     std::vector<TWriteIdForShard> WriteIds;
+    const TMonotonic StartInstant = TMonotonic::Now();
     YDB_READONLY_DEF(NLongTxService::TLongTxId, LongTxId);
+    YDB_READONLY(std::shared_ptr<TCSUploadCounters>, Counters, std::make_shared<TCSUploadCounters>());
 public:
     using TPtr = std::shared_ptr<TWritersController>;
 
diff --git a/ydb/core/tx/tx_proxy/rpc_long_tx.cpp b/ydb/core/tx/tx_proxy/rpc_long_tx.cpp
index f5b7c6b07cd5..29e14d3fb00e 100644
--- a/ydb/core/tx/tx_proxy/rpc_long_tx.cpp
+++ b/ydb/core/tx/tx_proxy/rpc_long_tx.cpp
@@ -85,6 +85,7 @@ class TLongTxWriteBase : public TActorBootstrapped<TLongTxWriteImpl> {
         ui32 writeIdx = 0;
         for (auto& [shard, infos] : splittedData.GetShardsInfo()) {
             for (auto&& shardInfo : infos) {
+                InternalController->GetCounters()->OnRequest(shardInfo->GetRowsCount(), shardInfo->GetBytes());
                 sumBytes += shardInfo->GetBytes();
                 rowsCount += shardInfo->GetRowsCount();
                 this->Register(new NEvWrite::TShardWriter(shard, shardsSplitter->GetTableId(), DedupId, shardInfo, ActorSpan, InternalController, ++writeIdx, NEvWrite::EModificationType::Replace));
diff --git a/ydb/core/tx/tx_proxy/upload_rows_common_impl.cpp b/ydb/core/tx/tx_proxy/upload_rows_common_impl.cpp
index 6d487a26016b..6a7911593cea 100644
--- a/ydb/core/tx/tx_proxy/upload_rows_common_impl.cpp
+++ b/ydb/core/tx/tx_proxy/upload_rows_common_impl.cpp
@@ -12,6 +12,11 @@ namespace NKikimr {
         RowsCount = TBase::GetDeriviative("Rows/Count");
         PackageSize = TBase::GetHistogram("Rows/PackageSize", NMonitoring::ExponentialHistogram(15, 2, 10));
 
+        DurationToStartCommit = TBase::GetHistogram("ToStartCommit/DurationMs", NMonitoring::ExponentialHistogram(15, 2, 10));
+        DurationToFinishCommit = TBase::GetHistogram("ToFinishCommit/DurationMs", NMonitoring::ExponentialHistogram(15, 2, 10));
+        DurationToStartWriting = TBase::GetHistogram("ToStartWriting/DurationMs", NMonitoring::ExponentialHistogram(15, 2, 10));
+        DurationToTxStarted = TBase::GetHistogram("ToTxStarted/DurationMs", NMonitoring::ExponentialHistogram(15, 2, 10));
+
         const google::protobuf::EnumDescriptor* descriptor = ::Ydb::StatusIds::StatusCode_descriptor();
         for (ui32 i = 0; i < (ui32)descriptor->value_count(); ++i) {
             auto vDescription = descriptor->value(i);
diff --git a/ydb/core/tx/tx_proxy/upload_rows_common_impl.h b/ydb/core/tx/tx_proxy/upload_rows_common_impl.h
index 599f9984b8ab..1e0e073c39d1 100644
--- a/ydb/core/tx/tx_proxy/upload_rows_common_impl.h
+++ b/ydb/core/tx/tx_proxy/upload_rows_common_impl.h
@@ -45,10 +45,31 @@ class TUploadCounters: public NColumnShard::TCommonCountersOwner {
     NMonitoring::TDynamicCounters::TCounterPtr RowsCount;
     NMonitoring::THistogramPtr PackageSize;
 
+    NMonitoring::THistogramPtr DurationToStartCommit;
+    NMonitoring::THistogramPtr DurationToFinishCommit;
+    NMonitoring::THistogramPtr DurationToStartWriting;
+    NMonitoring::THistogramPtr DurationToTxStarted;
+
     THashMap<TString, NMonitoring::TDynamicCounters::TCounterPtr> CodesCount;
 public:
     TUploadCounters();
 
+    void OnTxStarted(const TDuration d) const {
+        DurationToTxStarted->Collect(d.MilliSeconds());
+    }
+
+    void OnWritingStarted(const TDuration d) const {
+        DurationToStartWriting->Collect(d.MilliSeconds());
+    }
+
+    void OnStartCommit(const TDuration d) const {
+        DurationToStartCommit->Collect(d.MilliSeconds());
+    }
+
+    void OnFinishCommit(const TDuration d) const {
+        DurationToFinishCommit->Collect(d.MilliSeconds());
+    }
+
     void OnRequest(const ui64 rowsCount) const {
         RequestsCount->Add(1);
         RowsCount->Add(rowsCount);
@@ -741,6 +762,7 @@ class TUploadRowsBase : public TActorBootstrapped<TUploadRowsBase<DerivedActivit
     }
 
     void WriteToColumnTable(const NActors::TActorContext& ctx) {
+        UploadCounters.OnWritingStarted(TAppData::TimeProvider->Now() - StartTime);
         TString accessCheckError;
         if (!CheckAccess(accessCheckError)) {
             return ReplyWithError(Ydb::StatusIds::UNAUTHORIZED, LogPrefix() << accessCheckError, ctx);
@@ -765,6 +787,7 @@ class TUploadRowsBase : public TActorBootstrapped<TUploadRowsBase<DerivedActivit
 
     void Handle(NLongTxService::TEvLongTxService::TEvBeginTxResult::TPtr& ev, const TActorContext& ctx) {
         const auto* msg = ev->Get();
+        UploadCounters.OnTxStarted(TAppData::TimeProvider->Now() - StartTime);
 
         if (msg->Record.GetStatus() != Ydb::StatusIds::SUCCESS) {
             NYql::TIssues issues;
@@ -894,6 +917,7 @@ class TUploadRowsBase : public TActorBootstrapped<TUploadRowsBase<DerivedActivit
     }
 
     void CommitLongTx(const TActorContext& ctx) {
+        UploadCounters.OnStartCommit(TAppData::TimeProvider->Now() - StartTime);
         TActorId longTxServiceId = NLongTxService::MakeLongTxServiceID(ctx.SelfID.NodeId());
         ctx.Send(longTxServiceId, new NLongTxService::TEvLongTxService::TEvCommitTx(LongTxId), 0, 0, Span.GetTraceId());
         TBase::Become(&TThis::StateWaitCommitLongTx);
@@ -908,6 +932,7 @@ class TUploadRowsBase : public TActorBootstrapped<TUploadRowsBase<DerivedActivit
     }
 
     void Handle(NLongTxService::TEvLongTxService::TEvCommitTxResult::TPtr& ev, const NActors::TActorContext& ctx) {
+        UploadCounters.OnFinishCommit(TAppData::TimeProvider->Now() - StartTime);
         const auto* msg = ev->Get();
 
         if (msg->Record.GetStatus() == Ydb::StatusIds::SUCCESS) {