071df2f439
* Split queries into system and data queries * System queries are sequentially executed and generate separate transaction deltas * System transaction try locks for 100ms * last_commited_system_ts saved to DBMS durability * Replicating CREATE/DROP DATABASE * Sending a system snapshot if REPLICA behind * Passing a copy of the gatekeeper::access as std::any to all functions that could call an async execution * Removed delete_on_drop flag (we now always delete on drop) * Using UUID as the directory name for databases * DBMS durability update (added versioning and salient information) * Automatic migration from previous version * Interpreter can run some queries without a target database * SHOW REPLICA returns the status of the currently active DB * Returning UUID instead of db name in the RPC responses * Using UUIDs for database specification in RPC (not name) * FrequentCheck forces update on reconnect * TimestampRpc will detect if a replica is behind, and will update client's state * Safer SLK reads * Split SHOW DATABASES in two SHOW DATABASES (list of current databases) and SHOW DATABASE a single string naming the current database --------- Co-authored-by: Gareth Lloyd <gareth.lloyd@memgraph.io>
42 lines
1.7 KiB
C++
42 lines
1.7 KiB
C++
// Copyright 2023 Memgraph Ltd.
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//
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// Use of this software is governed by the Business Source License
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// included in the file licenses/BSL.txt; by using this file, you agree to be bound by the terms of the Business Source
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// License, and you may not use this file except in compliance with the Business Source License.
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//
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// As of the Change Date specified in that file, in accordance with
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// the Business Source License, use of this software will be governed
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// by the Apache License, Version 2.0, included in the file
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// licenses/APL.txt.
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#include "dbms/database.hpp"
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#include "dbms/inmemory/storage_helper.hpp"
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#include "dbms/replication_handler.hpp"
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#include "flags/storage_mode.hpp"
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#include "storage/v2/disk/storage.hpp"
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#include "storage/v2/inmemory/storage.hpp"
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#include "storage/v2/storage_mode.hpp"
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template struct memgraph::utils::Gatekeeper<memgraph::dbms::Database>;
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namespace memgraph::dbms {
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Database::Database(storage::Config config, replication::ReplicationState &repl_state)
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: trigger_store_(config.durability.storage_directory / "triggers"),
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streams_{config.durability.storage_directory / "streams"},
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plan_cache_{FLAGS_query_plan_cache_max_size},
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repl_state_(&repl_state) {
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if (config.salient.storage_mode == memgraph::storage::StorageMode::ON_DISK_TRANSACTIONAL || config.force_on_disk ||
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utils::DirExists(config.disk.main_storage_directory)) {
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storage_ = std::make_unique<storage::DiskStorage>(std::move(config));
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} else {
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storage_ = dbms::CreateInMemoryStorage(std::move(config), repl_state);
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}
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}
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void Database::SwitchToOnDisk() {
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storage_ = std::make_unique<memgraph::storage::DiskStorage>(std::move(storage_->config_));
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}
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} // namespace memgraph::dbms
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