df3ea2443b
No one seems to call them except for other uses_function methods. Tests: unit (dev) Signed-off-by: Dejan Mircevski <dejan@scylladb.com>
464 lines
20 KiB
C++
464 lines
20 KiB
C++
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* Modified by ScyllaDB
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* Copyright (C) 2015 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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#include "batch_statement.hh"
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#include "raw/batch_statement.hh"
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#include "db/config.hh"
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#include "db/consistency_level_validations.hh"
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#include "database.hh"
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#include <seastar/core/execution_stage.hh>
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#include "cas_request.hh"
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namespace cql3 {
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namespace statements {
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logging::logger batch_statement::_logger("BatchStatement");
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timeout_config_selector
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timeout_for_type(batch_statement::type t) {
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return t == batch_statement::type::COUNTER
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? &timeout_config::counter_write_timeout
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: &timeout_config::write_timeout;
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}
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batch_statement::batch_statement(int bound_terms, type type_,
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std::vector<single_statement> statements,
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std::unique_ptr<attributes> attrs,
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cql_stats& stats)
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: cql_statement_opt_metadata(timeout_for_type(type_))
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, _bound_terms(bound_terms), _type(type_), _statements(std::move(statements))
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, _attrs(std::move(attrs))
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, _has_conditions(boost::algorithm::any_of(_statements, [] (auto&& s) { return s.statement->has_conditions(); }))
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, _stats(stats)
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{
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validate();
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if (has_conditions()) {
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// A batch can be created not only by raw::batch_statement::prepare, but also by
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// cql_server::connection::process_batch, which doesn't call any methods of
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// cql3::statements::batch_statement, only constructs it. So let's call
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// build_cas_result_set_metadata right from the constructor to avoid crash trying to access
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// uninitialized batch metadata.
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build_cas_result_set_metadata();
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}
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}
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batch_statement::batch_statement(type type_,
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std::vector<single_statement> statements,
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std::unique_ptr<attributes> attrs,
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cql_stats& stats)
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: batch_statement(-1, type_, std::move(statements), std::move(attrs), stats)
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{
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}
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bool batch_statement::depends_on_keyspace(const sstring& ks_name) const
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{
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return false;
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}
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bool batch_statement::depends_on_column_family(const sstring& cf_name) const
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{
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return false;
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}
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uint32_t batch_statement::get_bound_terms() const
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{
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return _bound_terms;
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}
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future<> batch_statement::check_access(service::storage_proxy& proxy, const service::client_state& state) const
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{
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return parallel_for_each(_statements.begin(), _statements.end(), [&proxy, &state](auto&& s) {
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if (s.needs_authorization) {
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return s.statement->check_access(proxy, state);
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} else {
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return make_ready_future<>();
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}
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});
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}
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void batch_statement::validate()
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{
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if (_attrs->is_time_to_live_set()) {
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throw exceptions::invalid_request_exception("Global TTL on the BATCH statement is not supported.");
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}
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bool timestamp_set = _attrs->is_timestamp_set();
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if (timestamp_set) {
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if (_has_conditions) {
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throw exceptions::invalid_request_exception("Cannot provide custom timestamp for conditional BATCH");
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}
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if (_type == type::COUNTER) {
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throw exceptions::invalid_request_exception("Cannot provide custom timestamp for counter BATCH");
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}
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}
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bool has_counters = boost::algorithm::any_of(_statements, [] (auto&& s) { return s.statement->is_counter(); });
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bool has_non_counters = !boost::algorithm::all_of(_statements, [] (auto&& s) { return s.statement->is_counter(); });
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if (timestamp_set && has_counters) {
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throw exceptions::invalid_request_exception("Cannot provide custom timestamp for a BATCH containing counters");
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}
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if (timestamp_set && boost::algorithm::any_of(_statements, [] (auto&& s) { return s.statement->is_timestamp_set(); })) {
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throw exceptions::invalid_request_exception("Timestamp must be set either on BATCH or individual statements");
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}
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if (_type == type::COUNTER && has_non_counters) {
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throw exceptions::invalid_request_exception("Cannot include non-counter statement in a counter batch");
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}
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if (_type == type::LOGGED && has_counters) {
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throw exceptions::invalid_request_exception("Cannot include a counter statement in a logged batch");
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}
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if (has_counters && has_non_counters) {
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throw exceptions::invalid_request_exception("Counter and non-counter mutations cannot exist in the same batch");
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}
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if (_has_conditions
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&& !_statements.empty()
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&& (boost::distance(_statements
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| boost::adaptors::transformed([] (auto&& s) { return s.statement->keyspace(); })
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| boost::adaptors::uniqued) != 1
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|| (boost::distance(_statements
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| boost::adaptors::transformed([] (auto&& s) { return s.statement->column_family(); })
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| boost::adaptors::uniqued) != 1))) {
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throw exceptions::invalid_request_exception("BATCH with conditions cannot span multiple tables");
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}
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std::optional<bool> raw_counter;
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for (auto& s : _statements) {
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if (raw_counter && s.statement->is_raw_counter_shard_write() != *raw_counter) {
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throw exceptions::invalid_request_exception("Cannot mix raw and regular counter statements in batch");
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}
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raw_counter = s.statement->is_raw_counter_shard_write();
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}
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}
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void batch_statement::validate(service::storage_proxy& proxy, const service::client_state& state) const
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{
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for (auto&& s : _statements) {
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s.statement->validate(proxy, state);
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}
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}
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const std::vector<batch_statement::single_statement>& batch_statement::get_statements()
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{
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return _statements;
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}
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future<std::vector<mutation>> batch_statement::get_mutations(service::storage_proxy& storage, const query_options& options,
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db::timeout_clock::time_point timeout, bool local, api::timestamp_type now, service::query_state& query_state) const {
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// Do not process in parallel because operations like list append/prepend depend on execution order.
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using mutation_set_type = std::unordered_set<mutation, mutation_hash_by_key, mutation_equals_by_key>;
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return do_with(mutation_set_type(), [this, &storage, &options, timeout, now, local, &query_state] (auto& result) mutable {
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result.reserve(_statements.size());
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return do_for_each(boost::make_counting_iterator<size_t>(0),
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boost::make_counting_iterator<size_t>(_statements.size()),
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[this, &storage, &options, now, local, &result, timeout, &query_state] (size_t i) {
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auto&& statement = _statements[i].statement;
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statement->inc_cql_stats(query_state.get_client_state().is_internal());
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auto&& statement_options = options.for_statement(i);
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auto timestamp = _attrs->get_timestamp(now, statement_options);
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return statement->get_mutations(storage, statement_options, timeout, local, timestamp, query_state).then([&result] (auto&& more) {
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for (auto&& m : more) {
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// We want unordered_set::try_emplace(), but we don't have it
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auto pos = result.find(m);
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if (pos == result.end()) {
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result.emplace(std::move(m));
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} else {
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const_cast<mutation&>(*pos).apply(std::move(m)); // Won't change key
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}
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}
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});
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}).then([&result] {
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// can't use range adaptors, because we want to move
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auto vresult = std::vector<mutation>();
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vresult.reserve(result.size());
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for (auto&& m : result) {
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vresult.push_back(std::move(m));
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}
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return vresult;
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});
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});
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}
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void batch_statement::verify_batch_size(service::storage_proxy& proxy, const std::vector<mutation>& mutations) {
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if (mutations.size() <= 1) {
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return; // We only warn for batch spanning multiple mutations
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}
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size_t warn_threshold = proxy.get_db().local().get_config().batch_size_warn_threshold_in_kb() * 1024;
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size_t fail_threshold = proxy.get_db().local().get_config().batch_size_fail_threshold_in_kb() * 1024;
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size_t size = 0;
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for (auto&m : mutations) {
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size += m.partition().external_memory_usage(*m.schema());
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}
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if (size > warn_threshold) {
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auto error = [&] (const char* type, size_t threshold) -> sstring {
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std::unordered_set<sstring> ks_cf_pairs;
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for (auto&& m : mutations) {
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ks_cf_pairs.insert(m.schema()->ks_name() + "." + m.schema()->cf_name());
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}
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return format("Batch of prepared statements for {} is of size {:d}, exceeding specified {} threshold of {:d} by {:d}.",
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join(", ", ks_cf_pairs), size, type, threshold, size - threshold);
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};
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if (size > fail_threshold) {
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_logger.error(error("FAIL", fail_threshold).c_str());
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throw exceptions::invalid_request_exception("Batch too large");
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} else {
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_logger.warn(error("WARN", warn_threshold).c_str());
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}
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}
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}
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struct batch_statement_executor {
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static auto get() { return &batch_statement::do_execute; }
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};
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static thread_local inheriting_concrete_execution_stage<
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future<shared_ptr<cql_transport::messages::result_message>>,
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const batch_statement*,
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service::storage_proxy&,
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service::query_state&,
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const query_options&,
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bool,
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api::timestamp_type> batch_stage{"cql3_batch", batch_statement_executor::get()};
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future<shared_ptr<cql_transport::messages::result_message>> batch_statement::execute(
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service::storage_proxy& storage, service::query_state& state, const query_options& options) const {
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return batch_stage(this, seastar::ref(storage), seastar::ref(state),
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seastar::cref(options), false, options.get_timestamp(state));
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}
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future<shared_ptr<cql_transport::messages::result_message>> batch_statement::do_execute(
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service::storage_proxy& storage,
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service::query_state& query_state, const query_options& options,
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bool local, api::timestamp_type now) const
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{
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// FIXME: we don't support nulls here
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#if 0
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if (options.get_consistency() == null)
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throw new InvalidRequestException("Invalid empty consistency level");
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if (options.getSerialConsistency() == null)
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throw new InvalidRequestException("Invalid empty serial consistency level");
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#endif
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if (_has_conditions) {
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++_stats.cas_batches;
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_stats.statements_in_cas_batches += _statements.size();
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return execute_with_conditions(storage, options, query_state);
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}
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++_stats.batches;
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_stats.statements_in_batches += _statements.size();
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auto timeout = db::timeout_clock::now() + options.get_timeout_config().*get_timeout_config_selector();
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return get_mutations(storage, options, timeout, local, now, query_state).then([this, &storage, &options, timeout, tr_state = query_state.get_trace_state(),
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permit = query_state.get_permit()] (std::vector<mutation> ms) mutable {
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return execute_without_conditions(storage, std::move(ms), options.get_consistency(), timeout, std::move(tr_state), std::move(permit));
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}).then([] {
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return make_ready_future<shared_ptr<cql_transport::messages::result_message>>(
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make_shared<cql_transport::messages::result_message::void_message>());
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});
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}
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future<> batch_statement::execute_without_conditions(
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service::storage_proxy& storage,
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std::vector<mutation> mutations,
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db::consistency_level cl,
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db::timeout_clock::time_point timeout,
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tracing::trace_state_ptr tr_state,
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service_permit permit) const
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{
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// FIXME: do we need to do this?
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#if 0
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// Extract each collection of cfs from it's IMutation and then lazily concatenate all of them into a single Iterable.
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Iterable<ColumnFamily> cfs = Iterables.concat(Iterables.transform(mutations, new Function<IMutation, Collection<ColumnFamily>>()
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{
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public Collection<ColumnFamily> apply(IMutation im)
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{
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return im.getColumnFamilies();
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}
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}));
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#endif
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verify_batch_size(storage, mutations);
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bool mutate_atomic = true;
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if (_type != type::LOGGED) {
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_stats.batches_pure_unlogged += 1;
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mutate_atomic = false;
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} else {
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if (mutations.size() > 1) {
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_stats.batches_pure_logged += 1;
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} else {
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_stats.batches_unlogged_from_logged += 1;
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mutate_atomic = false;
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}
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}
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return storage.mutate_with_triggers(std::move(mutations), cl, timeout, mutate_atomic, std::move(tr_state), std::move(permit));
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}
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future<shared_ptr<cql_transport::messages::result_message>> batch_statement::execute_with_conditions(
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service::storage_proxy& proxy,
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const query_options& options,
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service::query_state& qs) const {
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auto cl_for_learn = options.get_consistency();
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auto cl_for_paxos = options.check_serial_consistency();
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seastar::shared_ptr<cas_request> request;
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schema_ptr schema;
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db::timeout_clock::time_point now = db::timeout_clock::now();
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const timeout_config& cfg = options.get_timeout_config();
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auto batch_timeout = now + cfg.write_timeout; // Statement timeout.
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auto cas_timeout = now + cfg.cas_timeout; // Ballot contention timeout.
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auto read_timeout = now + cfg.read_timeout; // Query timeout.
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for (size_t i = 0; i < _statements.size(); ++i) {
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modification_statement& statement = *_statements[i].statement;
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const query_options& statement_options = options.for_statement(i);
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statement.inc_cql_stats(qs.get_client_state().is_internal());
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modification_statement::json_cache_opt json_cache = statement.maybe_prepare_json_cache(statement_options);
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// At most one key
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std::vector<dht::partition_range> keys = statement.build_partition_keys(statement_options, json_cache);
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if (keys.empty()) {
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continue;
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}
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if (request.get() == nullptr) {
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schema = statement.s;
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request = seastar::make_shared<cas_request>(schema, std::move(keys));
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} else if (keys.size() != 1 || keys.front().equal(request->key().front(), dht::ring_position_comparator(*schema)) == false) {
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throw exceptions::invalid_request_exception("BATCH with conditions cannot span multiple partitions");
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}
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std::vector<query::clustering_range> ranges = statement.create_clustering_ranges(statement_options, json_cache);
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request->add_row_update(statement, std::move(ranges), std::move(json_cache), statement_options);
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}
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if (request.get() == nullptr) {
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throw exceptions::invalid_request_exception(format("Unrestricted partition key in a conditional BATCH"));
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}
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auto shard = service::storage_proxy::cas_shard(*_statements[0].statement->s, request->key()[0].start()->value().as_decorated_key().token());
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if (shard != this_shard_id()) {
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proxy.get_stats().replica_cross_shard_ops++;
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return make_ready_future<shared_ptr<cql_transport::messages::result_message>>(
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make_shared<cql_transport::messages::result_message::bounce_to_shard>(shard));
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}
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return proxy.cas(schema, request, request->read_command(proxy), request->key(),
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{read_timeout, qs.get_permit(), qs.get_client_state(), qs.get_trace_state()},
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cl_for_paxos, cl_for_learn, batch_timeout, cas_timeout).then([this, request] (bool is_applied) {
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return request->build_cas_result_set(_metadata, _columns_of_cas_result_set, is_applied);
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});
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}
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void batch_statement::build_cas_result_set_metadata() {
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if (_statements.empty()) {
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return;
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}
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const auto& schema = *_statements.front().statement->s;
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_columns_of_cas_result_set.resize(schema.all_columns_count());
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// Add the mandatory [applied] column to result set metadata
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std::vector<lw_shared_ptr<column_specification>> columns;
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auto applied = make_lw_shared<cql3::column_specification>(schema.ks_name(), schema.cf_name(),
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::make_shared<cql3::column_identifier>("[applied]", false), boolean_type);
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columns.push_back(applied);
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for (const auto& def : boost::range::join(schema.partition_key_columns(), schema.clustering_key_columns())) {
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_columns_of_cas_result_set.set(def.ordinal_id);
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}
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for (const auto& s : _statements) {
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_columns_of_cas_result_set.union_with(s.statement->columns_of_cas_result_set());
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}
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columns.reserve(_columns_of_cas_result_set.count());
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for (const auto& def : schema.all_columns()) {
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if (_columns_of_cas_result_set.test(def.ordinal_id)) {
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columns.emplace_back(def.column_specification);
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}
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}
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_metadata = seastar::make_shared<cql3::metadata>(std::move(columns));
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}
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namespace raw {
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std::unique_ptr<prepared_statement>
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batch_statement::prepare(database& db, cql_stats& stats) {
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auto&& bound_names = get_bound_variables();
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std::optional<sstring> first_ks;
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std::optional<sstring> first_cf;
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bool have_multiple_cfs = false;
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std::vector<cql3::statements::batch_statement::single_statement> statements;
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statements.reserve(_parsed_statements.size());
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for (auto&& parsed : _parsed_statements) {
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if (!first_ks) {
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first_ks = parsed->keyspace();
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first_cf = parsed->column_family();
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} else {
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have_multiple_cfs = first_ks.value() != parsed->keyspace() || first_cf.value() != parsed->column_family();
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}
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statements.emplace_back(parsed->prepare(db, bound_names, stats));
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}
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|
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auto&& prep_attrs = _attrs->prepare(db, "[batch]", "[batch]");
|
|
prep_attrs->collect_marker_specification(bound_names);
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|
|
|
cql3::statements::batch_statement batch_statement_(bound_names.size(), _type, std::move(statements), std::move(prep_attrs), stats);
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|
|
|
std::vector<uint16_t> partition_key_bind_indices;
|
|
if (!have_multiple_cfs && batch_statement_.get_statements().size() > 0) {
|
|
partition_key_bind_indices = bound_names.get_partition_key_bind_indexes(*batch_statement_.get_statements()[0].statement->s);
|
|
}
|
|
return std::make_unique<prepared_statement>(make_shared<cql3::statements::batch_statement>(std::move(batch_statement_)),
|
|
bound_names.get_specifications(),
|
|
std::move(partition_key_bind_indices));
|
|
}
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
}
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|
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