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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "maintenancescanner.h"
#include "bucketprioritydatabase.h"
#include "maintenanceprioritygenerator.h"
#include "node_maintenance_stats_tracker.h"
#include <vespa/storage/distributor/distributor_bucket_space_repo.h>
namespace storage::distributor {
class SimpleMaintenanceScanner : public MaintenanceScanner
{
public:
struct GlobalMaintenanceStats {
std::array<uint64_t, MaintenanceOperation::OPERATION_COUNT> pending;
GlobalMaintenanceStats() noexcept
: pending()
{ }
bool operator==(const GlobalMaintenanceStats& rhs) const noexcept;
void merge(const GlobalMaintenanceStats& rhs) noexcept;
};
struct PendingMaintenanceStats {
PendingMaintenanceStats() noexcept;
PendingMaintenanceStats(const PendingMaintenanceStats &);
PendingMaintenanceStats &operator = (const PendingMaintenanceStats &) = delete;
PendingMaintenanceStats(PendingMaintenanceStats &&) noexcept;
PendingMaintenanceStats &operator = (PendingMaintenanceStats &&) noexcept;
~PendingMaintenanceStats();
[[nodiscard]] PendingMaintenanceStats fetch_and_reset();
GlobalMaintenanceStats global;
NodeMaintenanceStatsTracker perNodeStats;
void merge(const PendingMaintenanceStats& rhs);
};
private:
BucketPriorityDatabase& _bucketPriorityDb;
const MaintenancePriorityGenerator& _priorityGenerator;
const DistributorBucketSpaceRepo& _bucketSpaceRepo;
DistributorBucketSpaceRepo::BucketSpaceMap::const_iterator _bucketSpaceItr;
document::BucketId _bucketCursor;
PendingMaintenanceStats _pendingMaintenance;
void countBucket(document::BucketSpace bucketSpace, const BucketInfo &info);
public:
SimpleMaintenanceScanner(BucketPriorityDatabase& bucketPriorityDb,
const MaintenancePriorityGenerator& priorityGenerator,
const DistributorBucketSpaceRepo& bucketSpaceRepo);
SimpleMaintenanceScanner(const SimpleMaintenanceScanner&) = delete;
SimpleMaintenanceScanner& operator=(const SimpleMaintenanceScanner&) = delete;
~SimpleMaintenanceScanner() override;
ScanResult scanNext() override;
[[nodiscard]] PendingMaintenanceStats fetch_and_reset();
// TODO: move out into own interface!
void prioritizeBucket(const document::Bucket &id);
// TODO Only for testing
const PendingMaintenanceStats& getPendingMaintenanceStats() const noexcept {
return _pendingMaintenance;
}
};
std::ostream&
operator<<(std::ostream&, const SimpleMaintenanceScanner::GlobalMaintenanceStats&);
}
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