fcb8d040e8
Instead of lengthy blurbs, switch to single-line, machine-readable standardized (https://spdx.dev) license identifiers. The Linux kernel switched long ago, so there is strong precedent. Three cases are handled: AGPL-only, Apache-only, and dual licensed. For the latter case, I chose (AGPL-3.0-or-later and Apache-2.0), reasoning that our changes are extensive enough to apply our license. The changes we applied mechanically with a script, except to licenses/README.md. Closes #9937
108 lines
2.4 KiB
C++
108 lines
2.4 KiB
C++
/*
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* Copyright (C) 2020-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*/
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#pragma once
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#include <array>
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#include <cstdint>
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#include <string>
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#include <seastar/core/metrics_registration.hh>
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#include "enum_set.hh"
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#include "utils/histogram.hh"
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#include "utils/estimated_histogram.hh"
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namespace cdc {
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class stats final {
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seastar::metrics::metric_groups _metrics;
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public:
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enum class part_type {
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STATIC_ROW,
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CLUSTERING_ROW,
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MAP,
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SET,
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LIST,
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UDT,
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RANGE_TOMBSTONE,
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PARTITION_DELETE,
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ROW_DELETE,
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MAX
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};
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using part_type_set = enum_set<super_enum<part_type,
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part_type::STATIC_ROW,
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part_type::CLUSTERING_ROW,
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part_type::MAP,
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part_type::SET,
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part_type::LIST,
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part_type::UDT,
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part_type::RANGE_TOMBSTONE,
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part_type::PARTITION_DELETE,
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part_type::ROW_DELETE
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>>;
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struct parts_touched_stats final {
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std::array<uint64_t, (size_t)part_type::MAX> count = {};
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inline void apply(part_type_set parts_set) {
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for (part_type idx : parts_set) {
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count[(size_t)idx]++;
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}
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}
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void register_metrics(seastar::metrics::metric_groups& metrics, std::string_view suffix);
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};
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struct counters final {
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uint64_t unsplit_count = 0;
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uint64_t split_count = 0;
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uint64_t preimage_selects = 0;
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uint64_t with_preimage_count = 0;
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uint64_t with_postimage_count = 0;
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parts_touched_stats touches;
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};
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counters counters_total;
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counters counters_failed;
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stats();
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};
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// Contains the details on what happened during a CDC operation.
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struct operation_details final {
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stats::part_type_set touched_parts;
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bool was_split = false;
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bool had_preimage = false;
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bool had_postimage = false;
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};
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// This object tracks the lifetime of write handlers related to one CDC operation. After all
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// write handlers for the operation finish, CDC metrics are updated.
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class operation_result_tracker final {
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stats& _stats;
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operation_details _details;
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bool _failed;
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public:
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operation_result_tracker(stats& stats, operation_details details)
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: _stats(stats)
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, _details(details)
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, _failed(false)
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{}
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~operation_result_tracker();
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void on_mutation_failed() {
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_failed = true;
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}
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};
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}
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