Rework FormatRead and SysLogRead, move their execution to PDisk to avoid race (#10009)

7 files changed, 46 insertions, 86 deletions

diff --git a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_actor.cpp b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_actor.cpp
index 38c90188fa..9eda6940d6 100644
--- a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_actor.cpp
+++ b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_actor.cpp
@@ -280,7 +280,7 @@ public:
             str << " Config: " << Cfg->ToString();
             P_LOG(PRI_CRIT, BPD01, str.Str());
         } else {
-            PDisk->InitiateReadSysLog(SelfId());
+            PDisk->InputRequest(PDisk->ReqCreator.CreateFromArgs<TReadFormat>(SelfId()));
             StateErrorReason =
                 "PDisk is in StateInit, wait for PDisk to read sys log. Did you ckeck EvYardInit result? Marker# BSY09";
             Become(&TThis::StateInit);
@@ -557,8 +557,8 @@ public:
                     // PDisk GUID is OK and format is complete
                     *PDisk->Mon.PDiskState = NKikimrBlobStorage::TPDiskState::InitialSysLogRead;
                     *PDisk->Mon.PDiskDetailedState = TPDiskMon::TPDisk::BootingSysLogRead;
-                    PDisk->Format.InitMagic();
-                    PDisk->ReadSysLog(SelfId());
+
+                    PDisk->InputRequest(PDisk->ReqCreator.CreateFromArgs<TReadSysLog>(SelfId()));
                 }
             }
         }
@@ -1083,7 +1083,7 @@ public:
             }
 
             Send(ev->Sender, new TEvBlobStorage::TEvNotifyWardenPDiskRestarted(PCtx->PDiskId, NKikimrProto::EReplyStatus::NOTREADY));
-            
+
             return;
         }
 
@@ -1096,7 +1096,7 @@ public:
             NPDisk::TMainKey newMainKey = ev->Get()->MainKey;
 
             SecureWipeBuffer((ui8*)ev->Get()->MainKey.Keys.data(), sizeof(NPDisk::TKey) * ev->Get()->MainKey.Keys.size());
-            
+
             P_LOG(PRI_NOTICE, BSP01, "Going to restart PDisk since received TEvAskWardenRestartPDiskResult");
 
             const TActorIdentity& thisActorId = SelfId();
@@ -1109,7 +1109,7 @@ public:
             TIntrusivePtr<TPDiskConfig> actorCfg = std::move(Cfg);
 
             auto& newCfg = ev->Get()->Config;
-            
+
             if (newCfg) {
                 Y_VERIFY_S(newCfg->PDiskId == pdiskId,
                         "New config's PDiskId# " << newCfg->PDiskId << " is not equal to real PDiskId# " << pdiskId);
@@ -1124,7 +1124,7 @@ public:
             TGenericExecutorThread& executorThread = actorCtx.ExecutorThread;
 
             PassAway();
-            
+
             CreatePDiskActor(executorThread, counters, actorCfg, newMainKey, pdiskId, poolId, nodeId);
 
             Send(ev->Sender, new TEvBlobStorage::TEvNotifyWardenPDiskRestarted(pdiskId));
diff --git a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_blockdevice_ut.cpp b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_blockdevice_ut.cpp
index aebfb7c78c..9068feaa67 100644
--- a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_blockdevice_ut.cpp
+++ b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_blockdevice_ut.cpp
@@ -173,69 +173,6 @@ void WaitForValue(TAtomic *counter, TDuration maxDuration, TAtomicBase expectedV
     }
 }
 
-void RunTestMultipleRequestsFromCompletionAction() {
-    const TIntrusivePtr<::NMonitoring::TDynamicCounters> counters = new ::NMonitoring::TDynamicCounters;
-    THolder<TPDiskMon> mon(new TPDiskMon(counters, 0, nullptr));
-    const ui32 dataSize = 4 << 10;
-    const ui64 generations = 8;
-    TAtomic counter = 0;
-
-
-    TTempDir tempDir;
-    TString path = CreateFile(tempDir().c_str(), dataSize);
-
-    {
-        TActorSystemCreator creator;
-        THolder<NPDisk::TBufferPool> bufferPool(NPDisk::CreateBufferPool(dataSize, 1, false, {}));
-        NPDisk::TBuffer::TPtr alignedBuffer(bufferPool->Pop());
-        memset(alignedBuffer->Data(), 0, dataSize);
-        THolder<NPDisk::IBlockDevice> device(NPDisk::CreateRealBlockDevice(path, *mon, 0, 0, 4,
-                NPDisk::TDeviceMode::LockFile, 2 << generations, nullptr));
-        device->Initialize(std::make_shared<NPDisk::TPDiskCtx>(creator.GetActorSystem()));
-
-        (new TWriter(*device, alignedBuffer.Get(), (i32)generations, &counter))->Exec(nullptr);
-
-        TAtomicBase expectedCounter = 0;
-        for (ui64 i = 0; i <= generations; ++i) {
-            expectedCounter += 1ull << i;
-        }
-        WaitForValue(&counter, TIMEOUT, expectedCounter);
-
-        TAtomicBase resultingCounter = AtomicGet(counter);
-
-        UNIT_ASSERT_VALUES_EQUAL(
-            resultingCounter,
-            expectedCounter
-        );
-    }
-    Ctest << "Done" << Endl;
-}
-
-void RunTestDestructionWithMultipleFlushesFromCompletionAction() {
-    const TIntrusivePtr<::NMonitoring::TDynamicCounters> counters = new ::NMonitoring::TDynamicCounters;
-    THolder<TPDiskMon> mon(new TPDiskMon(counters, 0, nullptr));
-    const ui32 dataSize = 4 << 10;
-    const i32 generations = 8;
-    TAtomic counter = 0;
-
-    TTempDir tempDir;
-    TString path = CreateFile(tempDir().c_str(), dataSize);
-
-    TActorSystemCreator creator;
-    THolder<NPDisk::IBlockDevice> device(NPDisk::CreateRealBlockDevice(path, *mon, 0, 0, 4,
-                NPDisk::TDeviceMode::LockFile, 2 << generations, nullptr));
-    device->Initialize(std::make_shared<NPDisk::TPDiskCtx>(creator.GetActorSystem()));
-
-    (new TFlusher(*device, generations, &counter))->Exec(nullptr);
-    device->Stop();
-    for (int i = 0; i < 10000; ++i) {
-        (new TFlusher(*device, generations, &counter))->Exec(nullptr);
-    }
-    device.Destroy();
-
-    Ctest << "Done" << Endl;
-}
-
 void RunWriteTestWithSectorMap(NPDisk::NSectorMap::EDiskMode diskMode, ui32 diskSize, ui32 bufferSize, bool sequential = true) {
     const TIntrusivePtr<::NMonitoring::TDynamicCounters> counters = new ::NMonitoring::TDynamicCounters;
     THolder<TPDiskMon> mon(new TPDiskMon(counters, 0, nullptr));
@@ -264,14 +201,6 @@ void RunWriteTestWithSectorMap(NPDisk::NSectorMap::EDiskMode diskMode, ui32 disk
 
 Y_UNIT_TEST_SUITE(TBlockDeviceTest) {
 
-    Y_UNIT_TEST(TestMultipleRequestsFromCompletionAction) {
-        RunTestMultipleRequestsFromCompletionAction();
-    }
-
-    Y_UNIT_TEST(TestDestructionWithMultipleFlushesFromCompletionAction) {
-        RunTestDestructionWithMultipleFlushesFromCompletionAction();
-    }
-
     Y_UNIT_TEST(TestDeviceWithSubmitGetThread) {
         const TIntrusivePtr<::NMonitoring::TDynamicCounters> counters = new ::NMonitoring::TDynamicCounters;
         THolder<TPDiskMon> mon(new TPDiskMon(counters, 0, nullptr));
diff --git a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_impl.cpp b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_impl.cpp
index 0ab6abf307..1a16e1d47f 100644
--- a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_impl.cpp
+++ b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_impl.cpp
@@ -2487,6 +2487,11 @@ void TPDisk::ProcessFastOperationsQueue() {
                 break;
             case ERequestType::RequestContinueReadMetadata:
                 static_cast<TContinueReadMetadata&>(*req).Execute(PCtx->ActorSystem);
+            case ERequestType::RequestReadFormat:
+                InitiateReadFormat();
+                break;
+            case ERequestType::RequestReadSysLog:
+                InitiateReadSysLog();
                 break;
             default:
                 Y_FAIL_S("Unexpected request type# " << (ui64)req->GetType());
@@ -3082,6 +3087,8 @@ bool TPDisk::PreprocessRequest(TRequestBase *request) {
         case ERequestType::RequestReadMetadata:
         case ERequestType::RequestWriteMetadata:
         case ERequestType::RequestContinueReadMetadata:
+        case ERequestType::RequestReadFormat:
+        case ERequestType::RequestReadSysLog:
             break;
         case ERequestType::RequestStopDevice:
             BlockDevice->Stop();
diff --git a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_impl.h b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_impl.h
index e571605489..c544fcc3c8 100644
--- a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_impl.h
+++ b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_impl.h
@@ -211,7 +211,7 @@ public:
     bool IsFormatMagicValid(ui8 *magicData, ui32 magicDataSize, const TMainKey& mainKey); // Called by actor
     bool CheckGuid(TString *outReason); // Called by actor
     bool CheckFormatComplete(); // Called by actor
-    void ReadSysLog(const TActorId &pDiskActor); // Called by actor
+    void InitiateReadSysLog();
     bool ProcessChunk0(const TEvReadLogResult &readLogResult, TString& errorReason);
     void PrintChunksDebugInfo();
     TRcBuf ProcessReadSysLogResult(ui64 &outWritePosition, ui64 &outLsn, const TEvReadLogResult &readLogResult);
@@ -394,9 +394,8 @@ public:
     // Internal interface
 
     // Schedules EvReadLogResult event for the system log
-    void ResetInit();
     bool Initialize(); // Called by actor
-    void InitiateReadSysLog(const TActorId &pDiskActor); // Called by actor
+    void InitiateReadFormat();
     void ProcessReadLogResult(const TEvReadLogResult &evReadLogResult, const TActorId &pDiskActor);
 
     NKikimrProto::EReplyStatus ValidateRequest(TLogWrite *logWrite, TStringStream& outErrorReason);
@@ -432,4 +431,3 @@ bool ParseSectorOffset(const TDiskFormat& format, TActorSystem *actorSystem, ui3
 
 } // NPDisk
 } // NKikimr
-
diff --git a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_impl_log.cpp b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_impl_log.cpp
index 8bd2e20ced..8681d943e5 100644
--- a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_impl_log.cpp
+++ b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_impl_log.cpp
@@ -205,8 +205,10 @@ void TPDisk::GetStartingPoints(NPDisk::TOwner owner, TMap<TLogSignature, NPDisk:
     }
 }
 
-void TPDisk::ReadSysLog(const TActorId &pDiskActor) {
-    TIntrusivePtr<TSysLogReader> sysLogReader(new TSysLogReader(this, PCtx->ActorSystem, pDiskActor,
+void TPDisk::InitiateReadSysLog() {
+    Format.InitMagic();
+
+    TIntrusivePtr<TSysLogReader> sysLogReader(new TSysLogReader(this, PCtx->ActorSystem, PCtx->PDiskActor,
                 TReqId(TReqId::ReadSysLog, 0)));
     sysLogReader->Start();
     return;
@@ -1310,7 +1312,7 @@ void TPDisk::MarkChunksAsReleased(TReleaseChunks& req) {
 }
 
 // Schedules EvReadLogResult event for the system log
-void TPDisk::InitiateReadSysLog(const TActorId &pDiskActor) {
+void TPDisk::InitiateReadFormat() {
     Y_VERIFY_S(PDiskThread.Running(), "expect PDiskThread to be running");
     Y_VERIFY_S(InitPhase == EInitPhase::Uninitialized, "expect InitPhase to be Uninitialized, but InitPhase# "
             << InitPhase);
@@ -1318,7 +1320,7 @@ void TPDisk::InitiateReadSysLog(const TActorId &pDiskActor) {
     THolder<TEvReadFormatResult> evReadFormatResult(new TEvReadFormatResult(formatSectorsSize, UseHugePages));
     ui8 *formatSectors = evReadFormatResult->FormatSectors.Get();
     BlockDevice->PreadAsync(formatSectors, formatSectorsSize, 0,
-        new TCompletionEventSender(this, pDiskActor, evReadFormatResult.Release()), TReqId(TReqId::InitialFormatRead, 0), {});
+        new TCompletionEventSender(this, PCtx->PDiskActor, evReadFormatResult.Release()), TReqId(TReqId::InitialFormatRead, 0), {});
     *Mon.PDiskState = NKikimrBlobStorage::TPDiskState::InitialFormatRead;
     *Mon.PDiskDetailedState = TPDiskMon::TPDisk::BootingFormatRead;
     InitPhase = EInitPhase::ReadingSysLog;
diff --git a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_request_id.h b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_request_id.h
index f186544538..f25d8206bc 100644
--- a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_request_id.h
+++ b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_request_id.h
@@ -153,6 +153,8 @@ enum class ERequestType {
     RequestWriteMetadataResult,
     RequestPushUnformattedMetadataSector,
     RequestContinueReadMetadata,
+    RequestReadFormat,
+    RequestReadSysLog,
 };
 
 inline IOutputStream& operator <<(IOutputStream& out, const TReqId& reqId) {
diff --git a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_requestimpl.h b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_requestimpl.h
index bd7dea1db7..1310c28744 100644
--- a/ydb/core/blobstorage/pdisk/blobstorage_pdisk_requestimpl.h
+++ b/ydb/core/blobstorage/pdisk/blobstorage_pdisk_requestimpl.h
@@ -119,6 +119,28 @@ public:
     static void AbortDelete(TRequestBase* request, TActorSystem* actorSystem);
 };
 
+class TReadFormat : public TRequestBase {
+public:
+    TReadFormat(TActorId pdiskActor, TAtomicBase reqIdx)
+        : TRequestBase(pdiskActor, TReqId(TReqId::ReadFormatInfo, reqIdx), 0, 0, NPriInternal::Other)
+    {}
+
+    ERequestType GetType() const override {
+        return ERequestType::RequestReadFormat;
+    }
+};
+
+class TReadSysLog : public TRequestBase {
+public:
+    TReadSysLog(TActorId pdiskActor, TAtomicBase reqIdx)
+        : TRequestBase(pdiskActor, TReqId(TReqId::ReadSysLog, reqIdx), 0, 0, NPriInternal::Other)
+    {}
+
+    ERequestType GetType() const override {
+        return ERequestType::RequestReadSysLog;
+    }
+};
+
 //
 // TYardInit
 //