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/**
* Copyright (C) 2020-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/platform/basic.h"
#include <algorithm>
#include "mongo/db/rebuild_indexes.h"
#include "mongo/base/status.h"
#include "mongo/db/catalog/collection.h"
#include "mongo/db/catalog/index_key_validate.h"
#include "mongo/db/index/index_descriptor.h"
#include "mongo/db/index_builds_coordinator.h"
#define MONGO_LOGV2_DEFAULT_COMPONENT ::mongo::logv2::LogComponent::kStorage
namespace mongo {
StatusWith<IndexNameObjs> getIndexNameObjs(const Collection* collection,
std::function<bool(const std::string&)> filter) {
IndexNameObjs ret;
std::vector<std::string>& indexNames = ret.first;
std::vector<BSONObj>& indexSpecs = ret.second;
{
// Fetch all indexes
collection->getAllIndexes(&indexNames);
auto newEnd =
std::remove_if(indexNames.begin(),
indexNames.end(),
[&filter](const std::string& indexName) { return !filter(indexName); });
indexNames.erase(newEnd, indexNames.end());
indexSpecs.reserve(indexNames.size());
for (const auto& name : indexNames) {
BSONObj spec = collection->getIndexSpec(name);
using IndexVersion = IndexDescriptor::IndexVersion;
IndexVersion indexVersion = IndexVersion::kV1;
if (auto indexVersionElem = spec[IndexDescriptor::kIndexVersionFieldName]) {
auto indexVersionNum = indexVersionElem.numberInt();
invariant(indexVersionNum == static_cast<int>(IndexVersion::kV1) ||
indexVersionNum == static_cast<int>(IndexVersion::kV2));
indexVersion = static_cast<IndexVersion>(indexVersionNum);
}
invariant(spec.isOwned());
indexSpecs.push_back(spec);
const BSONObj key = spec.getObjectField("key");
const Status keyStatus = index_key_validate::validateKeyPattern(key, indexVersion);
if (!keyStatus.isOK()) {
return Status(
ErrorCodes::CannotCreateIndex,
str::stream()
<< "Cannot rebuild index " << spec << ": " << keyStatus.reason()
<< " For more info see http://dochub.mongodb.org/core/index-validation");
}
}
}
return ret;
}
Status rebuildIndexesOnCollection(OperationContext* opCtx,
const Collection* collection,
const std::vector<BSONObj>& indexSpecs,
RepairData repair) {
// Skip the rest if there are no indexes to rebuild.
if (indexSpecs.empty())
return Status::OK();
// Rebuild the indexes provided by 'indexSpecs'.
IndexBuildsCoordinator* indexBuildsCoord = IndexBuildsCoordinator::get(opCtx);
UUID buildUUID = UUID::gen();
auto swRebuild = indexBuildsCoord->rebuildIndexesForRecovery(
opCtx, collection->ns(), indexSpecs, buildUUID, repair);
if (!swRebuild.isOK()) {
return swRebuild.getStatus();
}
auto [numRecords, dataSize] = swRebuild.getValue();
auto rs = collection->getRecordStore();
// Update the record store stats after finishing and committing the index builds.
WriteUnitOfWork wuow(opCtx);
rs->updateStatsAfterRepair(opCtx, numRecords, dataSize);
wuow.commit();
return Status::OK();
}
} // namespace mongo
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