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/**
* Copyright (C) 2018-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.
*/
#define MONGO_LOGV2_DEFAULT_COMPONENT ::mongo::logv2::LogComponent::kSharding
#include "mongo/db/s/scoped_operation_completion_sharding_actions.h"
#include "mongo/db/curop.h"
#include "mongo/db/s/operation_sharding_state.h"
#include "mongo/db/s/shard_filtering_metadata_refresh.h"
#include "mongo/db/s/sharding_state.h"
#include "mongo/db/s/sharding_statistics.h"
#include "mongo/logv2/log.h"
#include "mongo/s/stale_exception.h"
namespace mongo {
namespace {
const auto shardingOperationCompletionActionsRegistered =
OperationContext::declareDecoration<bool>();
} // namespace
ScopedOperationCompletionShardingActions::ScopedOperationCompletionShardingActions(
OperationContext* opCtx)
: _opCtx(opCtx) {
if (!opCtx->getClient()->isInDirectClient()) {
invariant(!shardingOperationCompletionActionsRegistered(_opCtx));
shardingOperationCompletionActionsRegistered(_opCtx) = true;
}
}
ScopedOperationCompletionShardingActions::~ScopedOperationCompletionShardingActions() noexcept {
if (_opCtx->getClient()->isInDirectClient())
return;
shardingOperationCompletionActionsRegistered(_opCtx) = false;
auto& oss = OperationShardingState::get(_opCtx);
auto status = oss.resetShardingOperationFailedStatus();
if (!status) {
return;
}
if (auto staleInfo = status->extraInfo<StaleConfigInfo>()) {
ShardingStatistics::get(_opCtx).countStaleConfigErrors.addAndFetch(1);
if (staleInfo->getCriticalSectionSignal()) {
// The shard is in a critical section
OperationShardingState::waitForCriticalSectionToComplete(
_opCtx, *staleInfo->getCriticalSectionSignal())
.ignore();
return;
}
if (staleInfo->getVersionWanted() &&
ChunkVersion::isIgnoredVersion(staleInfo->getVersionReceived())) {
// Shard is recovered, but the router didn't sent a shard version, therefore we just
// need to tell the router how much it needs to advance to (getVersionWanted).
return;
}
if (staleInfo->getVersionWanted() &&
staleInfo->getVersionReceived().isOlderThan(*staleInfo->getVersionWanted())) {
// Shard is recovered and the router is staler than the shard
return;
}
auto handleMismatchStatus = onShardVersionMismatchNoExcept(
_opCtx, staleInfo->getNss(), staleInfo->getVersionReceived());
if (!handleMismatchStatus.isOK())
LOGV2(22053,
"Failed to handle stale version exception as part of the current operation: "
"{error}",
"Failed to handle stale version exception as part of the current operation",
"error"_attr = redact(handleMismatchStatus));
} else if (auto staleInfo = status->extraInfo<StaleDbRoutingVersion>()) {
if (staleInfo->getCriticalSectionSignal()) {
// The shard is in a critical section
OperationShardingState::waitForCriticalSectionToComplete(
_opCtx, *staleInfo->getCriticalSectionSignal())
.ignore();
return;
}
if (staleInfo->getVersionWanted() &&
staleInfo->getVersionReceived() < staleInfo->getVersionWanted()) {
// Shard is recovered and the router is staler than the shard
return;
}
auto handleMismatchStatus = onDbVersionMismatchNoExcept(
_opCtx, staleInfo->getDb(), staleInfo->getVersionReceived());
if (!handleMismatchStatus.isOK())
LOGV2(22054,
"Failed to handle database version exception as part of the current operation: "
"{error}",
"Failed to database version exception as part of the current operation",
"error"_attr = redact(handleMismatchStatus));
}
}
} // namespace mongo
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