73280c0a15
So it can be used in the next patch that will refactor compaction_state out of class compaction_manager. Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
79 lines
3.6 KiB
C++
79 lines
3.6 KiB
C++
/*
|
|
* Copyright (C) 2017-present ScyllaDB
|
|
*/
|
|
|
|
/*
|
|
* SPDX-License-Identifier: AGPL-3.0-or-later
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "cql3/statements/property_definitions.hh"
|
|
#include "compaction_backlog_manager.hh"
|
|
#include "compaction_strategy.hh"
|
|
#include "db_clock.hh"
|
|
#include "compaction_descriptor.hh"
|
|
#include "tombstone_gc.hh"
|
|
|
|
namespace sstables {
|
|
|
|
class sstable_set_impl;
|
|
class resharding_descriptor;
|
|
|
|
class compaction_strategy_impl {
|
|
static constexpr float DEFAULT_TOMBSTONE_THRESHOLD = 0.2f;
|
|
// minimum interval needed to perform tombstone removal compaction in seconds, default 86400 or 1 day.
|
|
static constexpr std::chrono::seconds DEFAULT_TOMBSTONE_COMPACTION_INTERVAL() { return std::chrono::seconds(86400); }
|
|
protected:
|
|
const sstring TOMBSTONE_THRESHOLD_OPTION = "tombstone_threshold";
|
|
const sstring TOMBSTONE_COMPACTION_INTERVAL_OPTION = "tombstone_compaction_interval";
|
|
|
|
bool _use_clustering_key_filter = false;
|
|
bool _disable_tombstone_compaction = false;
|
|
float _tombstone_threshold = DEFAULT_TOMBSTONE_THRESHOLD;
|
|
db_clock::duration _tombstone_compaction_interval = DEFAULT_TOMBSTONE_COMPACTION_INTERVAL();
|
|
public:
|
|
static std::optional<sstring> get_value(const std::map<sstring, sstring>& options, const sstring& name);
|
|
protected:
|
|
compaction_strategy_impl() = default;
|
|
explicit compaction_strategy_impl(const std::map<sstring, sstring>& options);
|
|
static compaction_descriptor make_major_compaction_job(std::vector<sstables::shared_sstable> candidates,
|
|
int level = compaction_descriptor::default_level,
|
|
uint64_t max_sstable_bytes = compaction_descriptor::default_max_sstable_bytes);
|
|
public:
|
|
virtual ~compaction_strategy_impl() {}
|
|
virtual compaction_descriptor get_sstables_for_compaction(table_state& table_s, strategy_control& control, std::vector<sstables::shared_sstable> candidates) = 0;
|
|
virtual compaction_descriptor get_major_compaction_job(table_state& table_s, std::vector<sstables::shared_sstable> candidates) {
|
|
return make_major_compaction_job(std::move(candidates));
|
|
}
|
|
virtual std::vector<compaction_descriptor> get_cleanup_compaction_jobs(table_state& table_s, std::vector<shared_sstable> candidates) const;
|
|
virtual void notify_completion(table_state& table_s, const std::vector<shared_sstable>& removed, const std::vector<shared_sstable>& added) { }
|
|
virtual compaction_strategy_type type() const = 0;
|
|
virtual bool parallel_compaction() const {
|
|
return true;
|
|
}
|
|
virtual int64_t estimated_pending_compactions(table_state& table_s) const = 0;
|
|
virtual std::unique_ptr<sstable_set_impl> make_sstable_set(schema_ptr schema) const;
|
|
|
|
bool use_clustering_key_filter() const {
|
|
return _use_clustering_key_filter;
|
|
}
|
|
|
|
// Check if a given sstable is entitled for tombstone compaction based on its
|
|
// droppable tombstone histogram and gc_before.
|
|
bool worth_dropping_tombstones(const shared_sstable& sst, gc_clock::time_point compaction_time, const tombstone_gc_state& gc_state);
|
|
|
|
virtual std::unique_ptr<compaction_backlog_tracker::impl> make_backlog_tracker() const = 0;
|
|
|
|
virtual uint64_t adjust_partition_estimate(const mutation_source_metadata& ms_meta, uint64_t partition_estimate) const;
|
|
|
|
virtual reader_consumer_v2 make_interposer_consumer(const mutation_source_metadata& ms_meta, reader_consumer_v2 end_consumer) const;
|
|
|
|
virtual bool use_interposer_consumer() const {
|
|
return false;
|
|
}
|
|
|
|
virtual compaction_descriptor get_reshaping_job(std::vector<shared_sstable> input, schema_ptr schema, const ::io_priority_class& iop, reshape_mode mode) const;
|
|
};
|
|
}
|