add metrics for sequences sizes

5 files changed, 13 insertions, 13 deletions

diff --git a/ydb/core/mind/hive/sequencer.cpp b/ydb/core/mind/hive/sequencer.cpp
index 3d3a5b3f08..c0839361d8 100644
--- a/ydb/core/mind/hive/sequencer.cpp
+++ b/ydb/core/mind/hive/sequencer.cpp
@@ -12,6 +12,7 @@ bool TSequenceGenerator::AddFreeSequence(TOwnerType owner, TSequencer::TSequence
     if (inserted) {
         if (!sequence.Empty()) {
             FreeSequences.emplace_back(owner);
+            FreeSize_ += sequence.Size();
         }
         ++FreeSequencesIndex;
     }
@@ -24,6 +25,7 @@ void TSequenceGenerator::AddAllocatedSequence(TOwnerType owner, TSequence sequen
     {
         auto [it, inserted] = AllocatedSequences.emplace(sequence, owner);
         Y_VERIFY(inserted);
+        AllocatedSize_ += sequence.Size();
     }
     {
         auto [it, inserted] = SequenceByOwner.emplace(owner, sequence);
@@ -64,6 +66,7 @@ TSequencer::TSequence TSequenceGenerator::AllocateSequence(TSequencer::TOwnerTyp
     if (itSequence->second.Empty()) {
         FreeSequences.pop_front();
     }
+    FreeSize_ -= result.Size();
     if (size > 1) {
         AddAllocatedSequence(owner, result);
         modified.emplace_back(owner);
@@ -100,22 +103,11 @@ TSequencer::TOwnerType TSequenceGenerator::GetOwner(TSequencer::TElementType ele
 }
 
 size_t TSequenceGenerator::FreeSize() const {
-    size_t size = 0;
-    for (const auto& owner : FreeSequences) {
-        auto itSeq = SequenceByOwner.find(owner);
-        if (itSeq != SequenceByOwner.end()) {
-            size += itSeq->second.Size();
-        }
-    }
-    return size;
+    return FreeSize_;
 }
 
 size_t TSequenceGenerator::AllocatedSequencesSize() const {
-    size_t size = 0;
-    for (const auto& [seq, owner] : AllocatedSequences) {
-        size += seq.Size();
-    }
-    return size;
+    return AllocatedSize_;
 }
 
 size_t TSequenceGenerator::AllocatedSequencesCount() const {
diff --git a/ydb/core/mind/hive/sequencer.h b/ydb/core/mind/hive/sequencer.h
index 3b3aa8a90a..9ff38a9e76 100644
--- a/ydb/core/mind/hive/sequencer.h
+++ b/ydb/core/mind/hive/sequencer.h
@@ -114,6 +114,8 @@ protected:
     std::map<TSequence, TOwnerType> AllocatedSequences;
     std::list<TOwnerType> FreeSequences;
     size_t FreeSequencesIndex = 0;
+    size_t FreeSize_ = 0;
+    size_t AllocatedSize_ = 0;
 };
 
 // to keep ownership of sequences
diff --git a/ydb/core/mind/hive/tx__create_tablet.cpp b/ydb/core/mind/hive/tx__create_tablet.cpp
index 5606a10f22..07b085ca98 100644
--- a/ydb/core/mind/hive/tx__create_tablet.cpp
+++ b/ydb/core/mind/hive/tx__create_tablet.cpp
@@ -482,6 +482,8 @@ public:
         const TOwnerIdxType::TValueType ownerIdx(OwnerId, OwnerIdx);
         BLOG_D("THive::TTxCreateTablet::Complete " << ownerIdx << " TabletId: " << TabletId << " SideEffects: " << SideEffects);
         SideEffects.Complete(ctx);
+        Self->TabletCounters->Simple()[NHive::COUNTER_SEQUENCE_FREE].Set(Self->Sequencer.FreeSize());
+        Self->TabletCounters->Simple()[NHive::COUNTER_SEQUENCE_ALLOCATED].Set(Self->Sequencer.AllocatedSequencesSize());
     }
 };
 
diff --git a/ydb/core/mind/hive/tx__load_everything.cpp b/ydb/core/mind/hive/tx__load_everything.cpp
index 9dfe745d5c..6a16716b2e 100644
--- a/ydb/core/mind/hive/tx__load_everything.cpp
+++ b/ydb/core/mind/hive/tx__load_everything.cpp
@@ -655,6 +655,8 @@ public:
 
         Self->Become(&TSelf::StateWork);
         Self->SetCounterTabletsTotal(tabletsTotal);
+        Self->TabletCounters->Simple()[NHive::COUNTER_SEQUENCE_FREE].Set(Self->Sequencer.FreeSize());
+        Self->TabletCounters->Simple()[NHive::COUNTER_SEQUENCE_ALLOCATED].Set(Self->Sequencer.AllocatedSequencesSize());
         Self->MigrationState = NKikimrHive::EMigrationState::MIGRATION_READY;
         ctx.Send(Self->SelfId(), new TEvPrivate::TEvBootTablets());
 
diff --git a/ydb/core/protos/counters_hive.proto b/ydb/core/protos/counters_hive.proto
index bc7322f46b..30cd0552eb 100644
--- a/ydb/core/protos/counters_hive.proto
+++ b/ydb/core/protos/counters_hive.proto
@@ -20,6 +20,8 @@ enum ESimpleCounters {
     COUNTER_WAITQUEUE_SIZE = 10 [(CounterOpts) = {Name: "WaitQueueSize"}];
     COUNTER_BALANCE_USAGE_MIN = 11 [(CounterOpts) = {Name: "BalanceUsageMin"}];
     COUNTER_BALANCE_USAGE_MAX = 12 [(CounterOpts) = {Name: "BalanceUsageMax"}];
+    COUNTER_SEQUENCE_FREE = 13 [(CounterOpts) = {Name: "SequenceFree"}];
+    COUNTER_SEQUENCE_ALLOCATED = 14 [(CounterOpts) = {Name: "SequenceAllocated"}];
 }
 
 enum ECumulativeCounters {