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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "configstore.h"
#include "transactionlogmanager.h"
#include <vespa/searchlib/transactionlog/translogclient.h>
#include <vespa/searchcore/proton/common/eventlogger.h>
#include <vespa/vespalib/util/exceptions.h>
#include <cassert>
#include <vespa/log/log.h>
LOG_SETUP(".proton.server.transactionlogmanager");
using vespalib::IllegalStateException;
using vespalib::make_string;
using search::transactionlog::client::TransLogClient;
using search::transactionlog::client::Session;
namespace proton {
void
TransactionLogManager::doLogReplayComplete(const vespalib::string &domainName,
vespalib::duration elapsedTime) const
{
EventLogger::transactionLogReplayComplete(domainName, elapsedTime);
}
TransactionLogManager::TransactionLogManager(FNET_Transport & transport, const vespalib::string &tlsSpec, const vespalib::string &domainName)
: TransactionLogManagerBase(transport, tlsSpec, domainName),
_visitor()
{
}
TransactionLogManager::~TransactionLogManager() = default;
void
TransactionLogManager::init(SerialNum oldestConfigSerial, SerialNum &prunedSerialNum, SerialNum &replay_end_serial_num)
{
StatusResult res = TransactionLogManagerBase::init();
prunedSerialNum = res.serialBegin > 0 ? (res.serialBegin - 1) : 0;
replay_end_serial_num = res.serialEnd;
if (oldestConfigSerial != 0) {
prunedSerialNum = std::max(prunedSerialNum, oldestConfigSerial);
}
}
namespace {
void
getStatus(Session & session, search::SerialNum & serialBegin, search::SerialNum & serialEnd, size_t & count)
{
if (!session.status(serialBegin, serialEnd, count)) {
throw IllegalStateException(
make_string(
"Could not get status from session with"
" domain '%s' on TLS '%s'",
session.getDomain().c_str(),
session.getTLC().getRPCTarget().c_str()));
}
}
void getStatus(TransLogClient & client,
const vespalib::string & domainName,
search::SerialNum & serialBegin,
search::SerialNum & serialEnd,
size_t & count)
{
std::unique_ptr<Session> session = client.open(domainName);
if ( ! session) {
throw IllegalStateException(
make_string(
"Could not open session with domain '%s' on TLS '%s'",
session->getDomain().c_str(),
session->getTLC().getRPCTarget().c_str()));
}
getStatus(*session, serialBegin, serialEnd, count);
}
}
void
TransactionLogManager::prepareReplay(TransLogClient &client,
const vespalib::string &domainName,
SerialNum flushedIndexMgrSerial,
SerialNum flushedSummaryMgrSerial,
ConfigStore &config_store)
{
SerialNum oldestConfigSerial = config_store.getOldestSerialNum();
SerialNum from = flushedIndexMgrSerial;
SerialNum to = flushedSummaryMgrSerial;
assert(oldestConfigSerial != 0);
from = std::max(from, oldestConfigSerial);
if (from < to) {
SerialNum serialBegin = 0;
SerialNum serialEnd = 0;
size_t count = 0;
getStatus(client, domainName, serialBegin, serialEnd, count);
SerialNum prunedToken = serialBegin > 0 ? (serialBegin - 1) : 0;
from = std::max(from, prunedToken);
if (serialEnd < flushedSummaryMgrSerial) {
throw IllegalStateException(
make_string("SummaryStore '%" PRIu64 "' is more recent than "
"transactionlog '%" PRIu64 "'. Immpossible !!",
flushedSummaryMgrSerial, serialEnd));
}
if (serialEnd < flushedIndexMgrSerial) {
throw IllegalStateException(
make_string("IndexStore '%" PRIu64 "' is more recent than "
"transactionlog '%" PRIu64 "'. Immpossible !!",
flushedIndexMgrSerial, serialEnd));
}
}
}
std::unique_ptr<TlsReplayProgress>
TransactionLogManager::make_replay_progress(SerialNum first, SerialNum last)
{
return std::make_unique<TlsReplayProgress>(getDomainName(), first, last);
}
void
TransactionLogManager::startReplay(SerialNum first,
SerialNum syncToken,
Callback &callback)
{
assert( !_visitor);
_visitor = createTlcVisitor(callback);
if (!_visitor) {
throw IllegalStateException(
make_string(
"Could not create visitor for "
"replaying domain '%s' on TLS '%s'",
getDomainName().c_str(), getRpcTarget().c_str()));
}
TransactionLogManagerBase::internalStartReplay();
if (LOG_WOULD_LOG(event)) {
EventLogger::transactionLogReplayStart(
getDomainName(), first, syncToken);
}
if (!_visitor->visit(first, syncToken)) {
throw IllegalStateException(
make_string(
"Could not start visitor for "
"replaying domain '%s<%" PRIu64 ", %" PRIu64 "]' on TLS '%s'",
getDomainName().c_str(),
first, syncToken, getRpcTarget().c_str()));
}
}
void
TransactionLogManager::replayDone()
{
assert(_visitor);
LOG(debug, "Transaction log replayed for domain '%s'", getDomainName().c_str());
changeReplayDone();
LOG(debug, "Broadcasted replay done for domain '%s'", getDomainName().c_str());
if (LOG_WOULD_LOG(event)) {
logReplayComplete();
}
_visitor.reset();
}
} // namespace proton
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