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doris/be/src/vec/sink/load_stream_map_pool.h

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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
#pragma once
#include <brpc/controller.h>
#include <bthread/types.h>
#include <butil/errno.h>
#include <fmt/format.h>
#include <gen_cpp/PaloInternalService_types.h>
#include <gen_cpp/Types_types.h>
#include <gen_cpp/internal_service.pb.h>
#include <gen_cpp/types.pb.h>
#include <glog/logging.h>
#include <google/protobuf/stubs/callback.h>
#include <stddef.h>
#include <stdint.h>
#include <atomic>
// IWYU pragma: no_include <bits/chrono.h>
#include <chrono> // IWYU pragma: keep
#include <functional>
#include <initializer_list>
#include <map>
#include <memory>
#include <mutex>
#include <ostream>
#include <queue>
#include <set>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>
#include "common/config.h"
#include "common/status.h"
#include "exec/data_sink.h"
#include "exec/tablet_info.h"
#include "gutil/ref_counted.h"
#include "runtime/exec_env.h"
#include "runtime/memory/mem_tracker.h"
#include "runtime/thread_context.h"
#include "runtime/types.h"
#include "util/countdown_latch.h"
#include "util/runtime_profile.h"
#include "util/stopwatch.hpp"
#include "vec/columns/column.h"
#include "vec/common/allocator.h"
#include "vec/core/block.h"
#include "vec/data_types/data_type.h"
#include "vec/exprs/vexpr_fwd.h"
#include "vec/sink/load_stream_stub.h"
namespace doris {
class LoadStreamStub;
class LoadStreamMapPool;
using Streams = std::vector<std::shared_ptr<LoadStreamStub>>;
class LoadStreamMap {
public:
LoadStreamMap(UniqueId load_id, int64_t src_id, int num_streams, int num_use,
LoadStreamMapPool* pool);
std::shared_ptr<Streams> get_or_create(int64_t dst_id);
std::shared_ptr<Streams> at(int64_t dst_id);
bool contains(int64_t dst_id);
void for_each(std::function<void(int64_t, const Streams&)> fn);
Status for_each_st(std::function<Status(int64_t, const Streams&)> fn);
void save_tablets_to_commit(int64_t dst_id, const std::vector<PTabletID>& tablets_to_commit);
// Return true if the last instance is just released.
bool release();
// send CLOSE_LOAD to all streams, return ERROR if any.
// only call this method after release() returns true.
Status close_load();
private:
const UniqueId _load_id;
const int64_t _src_id;
const int _num_streams;
std::atomic<int> _use_cnt;
std::mutex _mutex;
std::unordered_map<int64_t, std::shared_ptr<Streams>> _streams_for_node;
LoadStreamMapPool* _pool = nullptr;
std::shared_ptr<IndexToTabletSchema> _tablet_schema_for_index;
std::shared_ptr<IndexToEnableMoW> _enable_unique_mow_for_index;
std::mutex _tablets_to_commit_mutex;
std::unordered_map<int64_t, std::vector<PTabletID>> _tablets_to_commit;
};
class LoadStreamMapPool {
public:
LoadStreamMapPool();
~LoadStreamMapPool();
std::shared_ptr<LoadStreamMap> get_or_create(UniqueId load_id, int64_t src_id, int num_streams,
int num_use);
void erase(UniqueId load_id);
size_t size() {
std::lock_guard<std::mutex> lock(_mutex);
return _pool.size();
}
private:
std::mutex _mutex;
std::unordered_map<UniqueId, std::shared_ptr<LoadStreamMap>> _pool;
};
} // namespace doris