Merge 55dd325 into 99bd033

Author: kungasc

ydb/core/driver_lib/run/kikimr_services_initializers.cpp

@@ -1093,10 +1093,7 @@ void TSharedCacheInitializer::InitializeServices(
     config->TotalAsyncQueueInFlyLimit = cfg.GetAsyncQueueInFlyLimit();
     config->TotalScanQueueInFlyLimit = cfg.GetScanQueueInFlyLimit();
     config->ReplacementPolicy = cfg.GetReplacementPolicy();
-
-    if (cfg.HasActivePagesReservationPercent()) {
-        config->ActivePagesReservationPercent = cfg.GetActivePagesReservationPercent();
-    }
+    config->ActivePagesReservationPercent = cfg.GetActivePagesReservationPercent();
 
     TIntrusivePtr<::NMonitoring::TDynamicCounters> tabletGroup = GetServiceCounters(appData->Counters, "tablets");
     TIntrusivePtr<::NMonitoring::TDynamicCounters> sausageGroup = tabletGroup->GetSubgroup("type", "S_CACHE");

ydb/core/protos/shared_cache.proto

@@ -3,6 +3,7 @@ option java_package = "ru.yandex.kikimr.proto";
 
 enum TReplacementPolicy {
     ThreeLeveledLRU = 0;
+    S3FIFO = 1;
 }
 
 message TSharedCacheConfig {

ydb/core/tablet_flat/shared_cache_events.h

@@ -3,6 +3,7 @@
 #include "defs.h"
 #include "flat_bio_events.h"
 #include "shared_handle.h"
+#include <ydb/core/protos/shared_cache.pb.h>
 
 #include <util/generic/map.h>
 #include <util/generic/set.h>
@@ -24,6 +25,7 @@ namespace NSharedCache {
         EvRequest,
         EvResult,
         EvUpdated,
+        EvReplacementPolicySwitch,
 
         EvEnd
 
@@ -127,6 +129,16 @@ namespace NSharedCache {
 
         THashMap<TLogoBlobID, TActions> Actions;
     };
+
+    struct TEvReplacementPolicySwitch : public TEventLocal<TEvReplacementPolicySwitch, EvReplacementPolicySwitch> {
+        using TReplacementPolicy = NKikimrSharedCache::TReplacementPolicy;
+
+        TReplacementPolicy ReplacementPolicy;
+
+        TEvReplacementPolicySwitch(TReplacementPolicy replacementPolicy)
+            : ReplacementPolicy(replacementPolicy)
+        {}
+    };
 }
 }