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0f62eb45d1
Introduce the "SHARES" keyword which can be used in conjunction with existing CQL statements related to the service levels. Adjust the CQL statements for service levels: - CREATE/ALTER now allow to set shares (only if the cluster is fully upgraded) - LIST EFFECTIVE SERVICE LEVEL now return the number of shares in a new column - LIST SERVICE LEVEL(S) also return the number of shares, and has the additional column "percentage of all service level shares"
64 lines
2.4 KiB
C++
64 lines
2.4 KiB
C++
/*
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* Copyright (C) 2021-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 "auth/service.hh"
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#include "exceptions/exceptions.hh"
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#include "seastarx.hh"
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#include "cql3/statements/create_service_level_statement.hh"
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#include "service/qos/qos_common.hh"
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#include "service/qos/service_level_controller.hh"
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#include "service/client_state.hh"
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#include "service/query_state.hh"
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#include "utils/error_injection.hh"
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namespace cql3 {
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namespace statements {
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create_service_level_statement::create_service_level_statement(sstring service_level, shared_ptr<sl_prop_defs> attrs, bool if_not_exists)
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: _service_level(service_level), _if_not_exists(if_not_exists) {
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attrs->validate();
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_slo = attrs->get_service_level_options();
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}
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std::unique_ptr<cql3::statements::prepared_statement>
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cql3::statements::create_service_level_statement::prepare(
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data_dictionary::database db, cql_stats &stats) {
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return std::make_unique<prepared_statement>(::make_shared<create_service_level_statement>(*this));
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}
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future<> create_service_level_statement::check_access(query_processor& qp, const service::client_state &state) const {
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return state.ensure_has_permission(auth::command_desc{.permission = auth::permission::CREATE, .resource = auth::root_service_level_resource()});
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}
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future<::shared_ptr<cql_transport::messages::result_message>>
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create_service_level_statement::execute(query_processor& qp,
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service::query_state &state,
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const query_options &,
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std::optional<service::group0_guard> guard) const {
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if (_service_level.starts_with('$')) {
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throw exceptions::invalid_request_exception("Names starting with '$' are reserved for internal tenants. Use a different name.");
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}
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service::group0_batch mc{std::move(guard)};
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validate_shares_option(qp, _slo);
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auto default_slo = qos::service_level_options{.shares = qos::service_level_controller::default_shares};
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if (utils::get_local_injector().is_enabled("create_service_levels_without_default_shares")) {
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default_slo.shares = qos::service_level_options::unset_marker{};
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}
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qos::service_level_options slo = _slo.replace_defaults(default_slo);
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auto& sl = state.get_service_level_controller();
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co_await sl.add_distributed_service_level(_service_level, slo, _if_not_exists, mc);
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co_await sl.commit_mutations(std::move(mc));
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co_return nullptr;
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}
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}
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}
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