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https://github.com/scylladb/scylladb.git
synced 2026-04-21 09:00:35 +00:00
8c464b2ddb
Replacing `restrict_replication_simplestrategy` config option with
2 config options: `replication_strategy_{warn,fail}_list`, which
allow us to impose soft limits (issue a warning) and hard limits (not
execute CQL) on replication strategy when creating/altering a keyspace.
The reason to rather replace than extend `restrict_replication_simplestrategy` config
option is that it was not used and we wanted to generalize it.
Only soft guardrail is enabled by default and it is set to SimpleStrategy,
which means that we'll generate a CQL warning whenever replication strategy
is set to SimpleStrategy. For new cloud deployments we'll move
SimpleStrategy from warn to the fail list.
Guardrails violations will be tracked by metrics.
Resolves #5224
Refs #8892 (the replication strategy part, not the RF part)
Closes scylladb/scylladb#15399
88 lines
2.5 KiB
C++
88 lines
2.5 KiB
C++
/*
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* Copyright (C) 2015-present ScyllaDB
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*
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* Modified by ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: (AGPL-3.0-or-later and Apache-2.0)
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*/
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#pragma once
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#include "cql3/statements/schema_altering_statement.hh"
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#include "transport/event.hh"
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#include <seastar/core/shared_ptr.hh>
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namespace locator {
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class token_metadata;
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};
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namespace data_dictionary {
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class keyspace_metadata;
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}
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namespace cql3 {
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class query_processor;
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namespace statements {
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class ks_prop_defs;
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/** A <code>CREATE KEYSPACE</code> statement parsed from a CQL query. */
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class create_keyspace_statement : public schema_altering_statement {
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private:
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sstring _name;
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shared_ptr<ks_prop_defs> _attrs;
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bool _if_not_exists;
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public:
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/**
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* Creates a new <code>CreateKeyspaceStatement</code> instance for a given
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* keyspace name and keyword arguments.
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*
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* @param name the name of the keyspace to create
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* @param attrs map of the raw keyword arguments that followed the <code>WITH</code> keyword.
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*/
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create_keyspace_statement(const sstring& name, shared_ptr<ks_prop_defs> attrs, bool if_not_exists);
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virtual const sstring& keyspace() const override;
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virtual future<> check_access(query_processor& qp, const service::client_state& state) const override;
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/**
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* The <code>CqlParser</code> only goes as far as extracting the keyword arguments
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* from these statements, so this method is responsible for processing and
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* validating.
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*
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* @throws InvalidRequestException if arguments are missing or unacceptable
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*/
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virtual void validate(query_processor&, const service::client_state& state) const override;
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future<std::tuple<::shared_ptr<cql_transport::event::schema_change>, std::vector<mutation>, cql3::cql_warnings_vec>> prepare_schema_mutations(query_processor& qp, api::timestamp_type) const override;
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virtual std::unique_ptr<prepared_statement> prepare(data_dictionary::database db, cql_stats& stats) override;
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virtual future<> grant_permissions_to_creator(const service::client_state&) const override;
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virtual future<::shared_ptr<messages::result_message>>
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execute(query_processor& qp, service::query_state& state, const query_options& options, std::optional<service::group0_guard> guard) const override;
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lw_shared_ptr<data_dictionary::keyspace_metadata> get_keyspace_metadata(const locator::token_metadata& tm);
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};
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std::vector<sstring> check_against_restricted_replication_strategies(
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query_processor& qp,
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const sstring& keyspace,
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const ks_prop_defs& attrs,
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cql_stats& stats);
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}
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}
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