db4283b542
Introduce `ms` -- a new sstable format version which is a hybrid of Cassandra's `me` and `da`. It is based on `me`, but with the index components (Summary.db and Index.db) replaced with the index components of `da` (Partitions.db and Rows.db). As of this patch, the version is never chosen anywhere for writing sstables yet. It is only introduced. We will add it to unit tests in a later commit, and expose it to users in yet later commit.
105 lines
4.2 KiB
C++
105 lines
4.2 KiB
C++
/*
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* Copyright (C) 2018-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: LicenseRef-ScyllaDB-Source-Available-1.0
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*/
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#include "version.hh"
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#include "sstable_version.hh"
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#include "sstable_version_k_l.hh"
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#include "sstable_version_m.hh"
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namespace sstables {
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template <size_t S1, size_t S2>
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constexpr bool check_sstable_versions(const std::array<sstable_version_types, S1>& all_sstable_versions,
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const std::array<sstable_version_types, S2>& writable_sstable_versions, sstable_version_types oldest_writable_sstable_format) {
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for (auto v : writable_sstable_versions) {
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if (v < oldest_writable_sstable_format) {
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return false;
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}
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}
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size_t expected = 0;
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for (auto v : all_sstable_versions) {
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if (v >= oldest_writable_sstable_format) {
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++expected;
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}
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}
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return expected == S2;
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}
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static_assert(check_sstable_versions(all_sstable_versions, writable_sstable_versions, oldest_writable_sstable_format));
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const sstring sstable_version_constants::TOC_SUFFIX = "TOC.txt";
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const sstring sstable_version_constants::TEMPORARY_TOC_SUFFIX = "TOC.txt.tmp";
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sstable_version_constants::component_map_t sstable_version_constants::create_component_map() {
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return {
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{ component_type::CompressionInfo, "CompressionInfo.db" },
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{ component_type::Data, "Data.db" },
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{ component_type::TOC, TOC_SUFFIX },
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{ component_type::CRC, "CRC.db" },
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{ component_type::Filter, "Filter.db" },
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{ component_type::Statistics, "Statistics.db" },
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{ component_type::Scylla, "Scylla.db" },
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{ component_type::TemporaryTOC, TEMPORARY_TOC_SUFFIX },
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{ component_type::TemporaryStatistics, "Statistics.db.tmp" }
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};
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}
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const sstable_version_constants::component_map_t&
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sstable_version_constants::get_component_map(sstable_version_types version) {
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switch (version) {
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case sstable_version_types::ka:
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case sstable_version_types::la:
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return sstable_version_constants_k_l::_component_map;
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case sstable_version_types::mc:
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case sstable_version_types::md:
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case sstable_version_types::me:
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return sstable_version_constants_m::_component_map;
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case sstable_version_types::ms:
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return sstable_version_constants_ms::_component_map;
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}
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// Should never reach this.
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// Compiler should complain if the switch above does no cover all sstable_version_types values.
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throw std::invalid_argument("Invalid sstable format version");
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}
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const sstable_version_constants::component_map_t sstable_version_constants_k_l::create_component_map() {
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auto result = sstable_version_constants::create_component_map();
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result.emplace(component_type::Index, "Index.db");
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result.emplace(component_type::Summary, "Summary.db");
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result.emplace(component_type::Digest, "Digest.sha1");
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return result;
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}
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const sstable_version_constants::component_map_t sstable_version_constants_k_l::_component_map =
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sstable_version_constants_k_l::create_component_map();
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const sstable_version_constants::component_map_t sstable_version_constants_m::create_component_map() {
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auto result = sstable_version_constants::create_component_map();
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result.emplace(component_type::Index, "Index.db");
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result.emplace(component_type::Summary, "Summary.db");
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result.emplace(component_type::Digest, "Digest.crc32");
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return result;
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}
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const sstable_version_constants::component_map_t sstable_version_constants_m::_component_map =
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sstable_version_constants_m::create_component_map();
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const sstable_version_constants::component_map_t sstable_version_constants_ms::create_component_map() {
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auto result = sstable_version_constants_m::create_component_map();
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// Note: for `ms`, we inherit all components from `me`.
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// This means that we allow `ms` to have Index.db and Summary.db components.
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result.emplace(component_type::Rows, "Rows.db");
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result.emplace(component_type::Partitions, "Partitions.db");
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result.emplace(component_type::TemporaryHashes, "TemporaryHashes.db.tmp");
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return result;
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}
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const sstable_version_constants::component_map_t sstable_version_constants_ms::_component_map =
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sstable_version_constants_ms::create_component_map();
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} |