14b3c7e7e7
This commit introduces large_partition_handler class, which can be used to take additional action when large partitions are written. It comes with two implementations: * NOP, used in tests, which does nothing on large partition update/delete * CQL TABLE, which inserts/deletes information on particular sstable to system.large_partitions table, in order to be retrievable from cqlsh later. References #3292
68 lines
2.4 KiB
C++
68 lines
2.4 KiB
C++
/*
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* Copyright (C) 2018 ScyllaDB
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*/
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/*
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* This file is part of Scylla.
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*
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* Scylla is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Scylla is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <cstdint>
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#include "schema.hh"
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namespace sstables {
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class sstable;
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class key;
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}
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namespace db {
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class large_partition_handler {
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public:
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virtual ~large_partition_handler() {}
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virtual future<> maybe_update_large_partitions(const sstables::sstable& sst, const sstables::key& partition_key, uint64_t partition_size) const = 0;
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virtual future<> maybe_delete_large_partitions_entry(const sstables::sstable& sst) const = 0;
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};
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class cql_table_large_partition_handler : public large_partition_handler {
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protected:
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uint64_t _threshold_bytes;
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static logging::logger large_partition_logger;
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public:
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explicit cql_table_large_partition_handler(uint64_t threshold_bytes) : _threshold_bytes(threshold_bytes) {}
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virtual future<> maybe_update_large_partitions(const sstables::sstable& sst, const sstables::key& partition_key, uint64_t partition_size) const override;
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virtual future<> maybe_delete_large_partitions_entry(const sstables::sstable& sst) const override;
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protected:
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future<> update_large_partitions(const schema& s, const sstring& sstable_name, const sstables::key& partition_key, uint64_t partition_size) const;
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future<> delete_large_partitions_entry(const schema& s, const sstring& sstable_name) const;
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};
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class nop_large_partition_handler : public large_partition_handler {
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public:
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virtual future<> maybe_update_large_partitions(const sstables::sstable& sst, const sstables::key& partition_key, uint64_t partition_size) const override {
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return make_ready_future<>();
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}
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virtual future<> maybe_delete_large_partitions_entry(const sstables::sstable& sst) const override {
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return make_ready_future<>();
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}
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};
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}
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