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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.
*/
#include "mongo/platform/basic.h"
#include "mongo/bson/bsonobjbuilder.h"
#include "mongo/db/commands/server_status.h"
#include "mongo/db/s/active_migrations_registry.h"
#include "mongo/db/s/sharding_state.h"
#include "mongo/db/s/sharding_statistics.h"
#include "mongo/db/server_options.h"
#include "mongo/s/balancer_configuration.h"
#include "mongo/s/catalog_cache.h"
#include "mongo/s/client/shard_registry.h"
#include "mongo/s/grid.h"
namespace mongo {
namespace {
bool isClusterNode() {
return serverGlobalParams.clusterRole != ClusterRole::None;
}
class ShardingServerStatus final : public ServerStatusSection {
public:
ShardingServerStatus() : ServerStatusSection("sharding") {}
bool includeByDefault() const override {
return isClusterNode();
}
BSONObj generateSection(OperationContext* opCtx,
const BSONElement& configElement) const override {
if (!isClusterNode())
return {};
auto const shardingState = ShardingState::get(opCtx);
if (!shardingState->enabled())
return {};
auto const grid = Grid::get(opCtx);
auto const shardRegistry = grid->shardRegistry();
BSONObjBuilder result;
result.append("configsvrConnectionString",
shardRegistry->getConfigServerConnectionString().toString());
grid->configOpTime().append(&result, "lastSeenConfigServerOpTime");
const long long maxChunkSizeInBytes =
grid->getBalancerConfiguration()->getMaxChunkSizeBytes();
result.append("maxChunkSizeInBytes", maxChunkSizeInBytes);
// Get a migration status report if a migration is active for which this is the source
// shard. The call to getActiveMigrationStatusReport will take an IS lock on the namespace
// of the active migration if there is one that is active.
BSONObj migrationStatus =
ActiveMigrationsRegistry::get(opCtx).getActiveMigrationStatusReport(opCtx);
if (!migrationStatus.isEmpty()) {
result.append("migrations", migrationStatus);
}
return result.obj();
}
} shardingServerStatus;
class ShardingStatisticsServerStatus final : public ServerStatusSection {
public:
ShardingStatisticsServerStatus() : ServerStatusSection("shardingStatistics") {}
bool includeByDefault() const override {
return isClusterNode();
}
BSONObj generateSection(OperationContext* opCtx,
const BSONElement& configElement) const override {
if (!isClusterNode())
return {};
auto const shardingState = ShardingState::get(opCtx);
if (!shardingState->enabled())
return {};
auto const grid = Grid::get(opCtx);
auto const catalogCache = grid->catalogCache();
BSONObjBuilder result;
ShardingStatistics::get(opCtx).report(&result);
catalogCache->report(&result);
return result.obj();
}
} shardingStatisticsServerStatus;
} // namespace
} // namespace mongo
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