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/**
* Copyright (C) 2022-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/db/s/global_index/global_index_inserter.h"
#include <fmt/format.h>
#include "mongo/db/s/global_index/global_index_entry_gen.h"
#include "mongo/db/transaction/transaction_api.h"
#include "mongo/logv2/log.h"
#include "mongo/util/fail_point.h"
#define MONGO_LOGV2_DEFAULT_COMPONENT ::mongo::logv2::LogComponent::kGlobalIndex
using namespace fmt::literals;
namespace mongo {
namespace global_index {
namespace {
MONGO_FAIL_POINT_DEFINE(globalIndexInserterPauseAfterReadingSkipCollection);
} // namespace
GlobalIndexInserter::GlobalIndexInserter(NamespaceString nss,
StringData indexName,
UUID indexUUID,
std::shared_ptr<executor::TaskExecutor> executor)
: _nss(std::move(nss)),
_indexName(indexName.toString()),
_indexUUID(std::move(indexUUID)),
_executor(std::move(executor)) {}
NamespaceString GlobalIndexInserter::_skipIdNss() {
return NamespaceString(NamespaceString::kConfigDb,
"{}.globalIndex.{}.skipList"_format(_nss.coll(), _indexName));
}
NamespaceString GlobalIndexInserter::_globalIndexNss() {
return NamespaceString(_nss.db(), "{}.globalIndex.{}"_format(_nss.coll(), _indexName));
}
void GlobalIndexInserter::processDoc(OperationContext* opCtx,
const BSONObj& indexKeyValues,
const BSONObj& documentKey) {
auto insertToGlobalIndexFn = [this,
service = opCtx->getServiceContext(),
indexKeyValues,
documentKey](const txn_api::TransactionClient& txnClient,
ExecutorPtr txnExec) {
FindCommandRequest skipIdQuery(_skipIdNss());
skipIdQuery.setFilter(BSON("_id" << documentKey));
skipIdQuery.setLimit(1);
return txnClient.exhaustiveFind(skipIdQuery)
.thenRunOn(txnExec)
.then([this, service, indexKeyValues, documentKey, &txnClient, txnExec](
const auto& skipIdDocResults) {
auto client = service->makeClient("globalIndexInserter");
auto opCtx = service->makeOperationContext(client.get());
{
stdx::lock_guard<Client> lk(*client);
client->setSystemOperationKillableByStepdown(lk);
}
globalIndexInserterPauseAfterReadingSkipCollection.pauseWhileSet(opCtx.get());
if (!skipIdDocResults.empty()) {
return SemiFuture<void>::makeReady();
}
write_ops::InsertCommandRequest globalIndexEntryInsert(_globalIndexNss());
globalIndexEntryInsert.getWriteCommandRequestBase().setCollectionUUID(_indexUUID);
GlobalIndexEntry indexEntry(indexKeyValues, documentKey);
globalIndexEntryInsert.setDocuments({indexEntry.toBSON()});
return txnClient.runCRUDOp({globalIndexEntryInsert}, {})
.thenRunOn(txnExec)
.then([this, documentKey, &txnClient](const auto& commandResponse) {
write_ops::InsertCommandRequest skipIdInsert(_skipIdNss());
skipIdInsert.setDocuments({BSON("_id" << documentKey)});
return txnClient.runCRUDOp({skipIdInsert}, {}).ignoreValue();
})
.semi();
})
.semi();
};
txn_api::SyncTransactionWithRetries txn(opCtx, _executor, nullptr);
txn.run(opCtx, insertToGlobalIndexFn);
}
} // namespace global_index
} // namespace mongo
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