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#include "transaction.h"
#include "transaction_pinger.h"
#include <yt/cpp/mapreduce/common/wait_proxy.h>
#include <yt/cpp/mapreduce/common/retry_lib.h>
#include <yt/cpp/mapreduce/http/requests.h>
#include <yt/cpp/mapreduce/http/retry_request.h>
#include <yt/cpp/mapreduce/interface/config.h>
#include <yt/cpp/mapreduce/interface/error_codes.h>
#include <yt/cpp/mapreduce/interface/raw_client.h>
#include <yt/cpp/mapreduce/raw_client/raw_requests.h>
#include <util/datetime/base.h>
#include <util/generic/scope.h>
#include <util/random/random.h>
#include <util/string/builder.h>
namespace NYT {
////////////////////////////////////////////////////////////////////////////////
TPingableTransaction::TPingableTransaction(
const IRawClientPtr& rawClient,
const IClientRetryPolicyPtr& retryPolicy,
const TClientContext& context,
const TTransactionId& parentId,
ITransactionPingerPtr transactionPinger,
const TStartTransactionOptions& options)
: RawClient_(rawClient)
, ClientRetryPolicy_(retryPolicy)
, Context_(context)
, AbortableRegistry_(NDetail::TAbortableRegistry::Get())
, AbortOnTermination_(true)
, AutoPingable_(options.AutoPingable_)
, Pinger_(std::move(transactionPinger))
{
auto transactionId = NDetail::NRawClient::StartTransaction(
ClientRetryPolicy_->CreatePolicyForGenericRequest(),
context,
parentId,
options);
auto actualTimeout = options.Timeout_.GetOrElse(Context_.Config->TxTimeout);
Init(context, transactionId, actualTimeout);
}
TPingableTransaction::TPingableTransaction(
const IRawClientPtr& rawClient,
const IClientRetryPolicyPtr& retryPolicy,
const TClientContext& context,
const TTransactionId& transactionId,
ITransactionPingerPtr transactionPinger,
const TAttachTransactionOptions& options)
: RawClient_(rawClient)
, ClientRetryPolicy_(retryPolicy)
, Context_(context)
, AbortableRegistry_(NDetail::TAbortableRegistry::Get())
, AbortOnTermination_(options.AbortOnTermination_)
, AutoPingable_(options.AutoPingable_)
, Pinger_(std::move(transactionPinger))
{
auto timeoutNode = NDetail::RequestWithRetry<TNode>(
ClientRetryPolicy_->CreatePolicyForGenericRequest(),
[this, &transactionId] (TMutationId /*mutationId*/) {
return RawClient_->TryGet(
TTransactionId(),
"#" + GetGuidAsString(transactionId) + "/@timeout",
TGetOptions());
});
if (timeoutNode.IsUndefined()) {
throw yexception() << "Transaction " << GetGuidAsString(transactionId) << " does not exist";
}
auto timeout = TDuration::MilliSeconds(timeoutNode.AsInt64());
Init(context, transactionId, timeout);
}
void TPingableTransaction::Init(
const TClientContext& context,
const TTransactionId& transactionId,
TDuration timeout)
{
TransactionId_ = transactionId;
if (AbortOnTermination_) {
AbortableRegistry_->Add(
TransactionId_,
::MakeIntrusive<NDetail::TTransactionAbortable>(context, TransactionId_));
}
if (AutoPingable_) {
// Compute 'MaxPingInterval_' and 'MinPingInterval_' such that 'pingInterval == (max + min) / 2'.
auto pingInterval = Context_.Config->PingInterval;
auto safeTimeout = timeout - TDuration::Seconds(5);
MaxPingInterval_ = Max(pingInterval, Min(safeTimeout, pingInterval * 1.5));
MinPingInterval_ = pingInterval - (MaxPingInterval_ - pingInterval);
Pinger_->RegisterTransaction(*this);
}
}
TPingableTransaction::~TPingableTransaction()
{
try {
Stop(AbortOnTermination_ ? EStopAction::Abort : EStopAction::Detach);
} catch (...) {
}
}
const TTransactionId TPingableTransaction::GetId() const
{
return TransactionId_;
}
const std::pair<TDuration, TDuration> TPingableTransaction::GetPingInterval() const {
return {MinPingInterval_, MaxPingInterval_};
}
const TClientContext TPingableTransaction::GetContext() const {
return Context_;
}
void TPingableTransaction::Commit()
{
Stop(EStopAction::Commit);
}
void TPingableTransaction::Abort()
{
Stop(EStopAction::Abort);
}
void TPingableTransaction::Detach()
{
Stop(EStopAction::Detach);
}
void TPingableTransaction::Stop(EStopAction action)
{
if (Finalized_) {
return;
}
Y_DEFER {
Finalized_ = true;
if (AutoPingable_ && Pinger_->HasTransaction(*this)) {
Pinger_->RemoveTransaction(*this);
}
};
switch (action) {
case EStopAction::Commit:
NDetail::NRawClient::CommitTransaction(
ClientRetryPolicy_->CreatePolicyForGenericRequest(),
Context_,
TransactionId_);
break;
case EStopAction::Abort:
NDetail::NRawClient::AbortTransaction(
ClientRetryPolicy_->CreatePolicyForGenericRequest(),
Context_,
TransactionId_);
break;
case EStopAction::Detach:
// Do nothing.
break;
}
AbortableRegistry_->Remove(TransactionId_);
}
////////////////////////////////////////////////////////////////////////////////
TYPath Snapshot(
const IRawClientPtr& rawClient,
const IClientRetryPolicyPtr& clientRetryPolicy,
const TTransactionId& transactionId,
const TYPath& path)
{
auto lockId = NDetail::RequestWithRetry<TLockId>(
clientRetryPolicy->CreatePolicyForGenericRequest(),
[&rawClient, &transactionId, &path] (TMutationId& mutationId) {
return rawClient->Lock(
mutationId,
transactionId,
path,
ELockMode::LM_SNAPSHOT);
});
auto lockedNodeId = NDetail::RequestWithRetry<TNode>(
clientRetryPolicy->CreatePolicyForGenericRequest(),
[&rawClient, &transactionId, &lockId] (TMutationId /*mutationId*/) {
return rawClient->Get(
transactionId,
::TStringBuilder() << '#' << GetGuidAsString(lockId) << "/@node_id");
});
return "#" + lockedNodeId.AsString();
}
////////////////////////////////////////////////////////////////////////////////
} // namespace NYT
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