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#pragma once
#include "defs.h"
#include "events.h"
#include <ydb/core/protos/base.pb.h>
#include <library/cpp/actors/core/event_local.h>
#include <util/stream/str.h>
#include <util/string/builder.h>
namespace NKikimr {
struct TEvTabletResolver {
enum EEv {
EvForward = EventSpaceBegin(TKikimrEvents::ES_TABLETRESOLVER),
EvTabletProblem,
EvNodeProblem,
EvForwardResult = EvForward + 1 * 512,
EvEnd
};
static_assert(EvEnd < EventSpaceEnd(TKikimrEvents::ES_TABLETRESOLVER), "expect EvEnd < EventSpaceEnd(TKikimrEvents::ES_TABLETRESOLVER)");
struct TEvForward : public TEventLocal<TEvForward, EvForward> {
///
enum class EResolvePrio : ui8 {
ResPrioDisallow,
ResPrioAllow,
ResPrioPrefer,
ResPrioForce,
};
///
struct TResolveFlags {
EResolvePrio LocalNodePrio;
EResolvePrio LocalDcPrio;
EResolvePrio FollowerPrio;
TResolveFlags()
: LocalNodePrio(EResolvePrio::ResPrioAllow)
, LocalDcPrio(EResolvePrio::ResPrioPrefer)
, FollowerPrio(EResolvePrio::ResPrioDisallow)
{}
static constexpr ui32 MaxTabletPriority() { return 4; }
ui32 GetTabletPriority(bool isLocalNode, bool isLocalDc, bool isFollower) const {
if (isLocalNode && (LocalNodePrio == EResolvePrio::ResPrioDisallow) ||
isLocalDc && (LocalDcPrio == EResolvePrio::ResPrioDisallow) ||
isFollower && (FollowerPrio == EResolvePrio::ResPrioDisallow) ||
!isLocalNode && (LocalNodePrio == EResolvePrio::ResPrioForce) ||
!isLocalDc && (LocalDcPrio == EResolvePrio::ResPrioForce) ||
!isFollower && (FollowerPrio == EResolvePrio::ResPrioForce))
{
return 0;
}
ui32 prio = 1;
if (isLocalNode && (LocalNodePrio == EResolvePrio::ResPrioPrefer))
prio |= 2;
if (isLocalDc && (LocalDcPrio == EResolvePrio::ResPrioPrefer))
prio |= 8;
if (isFollower && (FollowerPrio == EResolvePrio::ResPrioPrefer))
prio |= 4;
return prio;
}
bool AllowFollower() const { return FollowerPrio != EResolvePrio::ResPrioDisallow; }
void SetAllowFollower(bool flag, bool allowMeansPrefer = true) {
FollowerPrio = EResolvePrio::ResPrioDisallow;
if (flag)
FollowerPrio = (allowMeansPrefer ? EResolvePrio::ResPrioPrefer : EResolvePrio::ResPrioAllow);
}
void SetForceFollower(bool flag) {
if (flag)
FollowerPrio = EResolvePrio::ResPrioForce;
}
void SetPreferLocal(bool flag) {
if (flag && LocalNodePrio < EResolvePrio::ResPrioPrefer)
LocalNodePrio = EResolvePrio::ResPrioPrefer;
}
void SetForceLocal(bool flag) {
if (flag)
LocalNodePrio = EResolvePrio::ResPrioForce;
}
TString ToString() const {
TStringStream str;
str << (ui32) LocalNodePrio << ':'
<< (ui32) LocalDcPrio << ':'
<< (ui32) FollowerPrio;
return str.Str();
}
};
///
enum class EActor : ui8 {
Tablet,
SysTablet,
};
const ui64 TabletID;
THolder<IEventHandle> Ev;
TResolveFlags ResolveFlags;
EActor Actor;
TEvForward(ui64 tabletId, IEventHandle *ev, TResolveFlags flags = TResolveFlags(), EActor actor = EActor::Tablet)
: TabletID(tabletId)
, Ev(ev)
, ResolveFlags(flags)
, Actor(actor)
{}
TString ToString() const {
TStringStream str;
str << "{EvForward TabletID: " << TabletID;
str << " Ev: " << (Ev ? Ev->GetBase()->ToString().data() : "nullptr");
str << " Flags: " << ResolveFlags.ToString();
str << "}";
return str.Str();
}
TActorId SelectActor(const TActorId& tablet, const TActorId& sysTablet) const {
switch (Actor) {
case EActor::Tablet:
return tablet;
case EActor::SysTablet:
return sysTablet;
}
}
};
struct TEvTabletProblem : public TEventLocal<TEvTabletProblem, EvTabletProblem> {
const ui64 TabletID;
const TActorId TabletActor;
TEvTabletProblem(ui64 tabletId, const TActorId &tabletActor)
: TabletID(tabletId)
, TabletActor(tabletActor)
{}
TString ToString() const {
TStringStream str;
str << "{EvTabletProblem TabletID: " << TabletID;
str << " TabletActor: " << TabletActor.ToString();
str << "}";
return str.Str();
}
};
struct TEvNodeProblem : public TEventLocal<TEvNodeProblem, EvNodeProblem> {
const ui32 NodeId;
const ui64 CacheEpoch;
TEvNodeProblem(ui32 nodeId, ui64 cacheEpoch)
: NodeId(nodeId)
, CacheEpoch(cacheEpoch)
{}
TString ToString() const {
return TStringBuilder()
<< "{EvNodeProblem NodeId: " << NodeId
<< " CacheEpoch: " << CacheEpoch
<< "}";
}
};
struct TEvForwardResult : public TEventLocal<TEvForwardResult, EvForwardResult> {
const NKikimrProto::EReplyStatus Status;
ui64 TabletID;
TActorId TabletActor;
TActorId Tablet;
ui64 CacheEpoch;
TEvForwardResult(NKikimrProto::EReplyStatus status, ui64 tabletId)
: Status(status)
, TabletID(tabletId)
, CacheEpoch(0)
{}
TEvForwardResult(ui64 tabletId, const TActorId &tabletActor, const TActorId &tablet, ui64 cacheEpoch)
: Status(NKikimrProto::OK)
, TabletID(tabletId)
, TabletActor(tabletActor)
, Tablet(tablet)
, CacheEpoch(cacheEpoch)
{}
TString ToString() const {
TStringStream str;
str << "{EvForwardResult Status: " << (ui32)Status;
str << " TabletID: " << TabletID;
str << " TabletActor: " << TabletActor.ToString();
str << " Tablet: " << Tablet.ToString();
str << " CacheEpoch: " << CacheEpoch;
str << "}";
return str.Str();
}
};
};
struct TTabletResolverConfig : public TThrRefBase {
ui64 TabletCacheLimit;
TTabletResolverConfig()
: TabletCacheLimit(500000)
{}
};
IActor* CreateTabletResolver(const TIntrusivePtr<TTabletResolverConfig> &config);
TActorId MakeTabletResolverID();
}
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