81 lines
2.2 KiB
C++
81 lines
2.2 KiB
C++
// 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,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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#pragma once
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#include <mutex>
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#include <unordered_set>
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#include <vector>
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#include "common/status.h"
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#include "gen_cpp/Types_types.h"
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#include "util/hash_util.hpp"
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#include "util/lru_cache.hpp"
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namespace doris {
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class ExecEnv;
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class PlanFragmentExecutor;
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class TExportStatusResult;
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class TExportTaskRequest;
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// used to report to master
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struct ExportTaskResult {
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// files exported to
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std::vector<std::string> files;
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};
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// used to report to master
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struct ExportTaskCtx {
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Status status;
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ExportTaskResult result;
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};
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// we need to communicate with FE on the status of export tasks, so we need this class to manage.
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class ExportTaskMgr {
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public:
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ExportTaskMgr(ExecEnv* exec_env);
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virtual ~ExportTaskMgr();
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Status init();
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Status start_task(const TExportTaskRequest& request);
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Status cancel_task(const TUniqueId& id);
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Status erase_task(const TUniqueId& id);
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Status finish_task(const TUniqueId& id, const Status& status, const ExportTaskResult& result);
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Status get_task_state(const TUniqueId& id, TExportStatusResult* status_result);
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void finalize_task(PlanFragmentExecutor* executor);
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private:
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void report_to_master(PlanFragmentExecutor* executor);
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ExecEnv* _exec_env;
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std::mutex _lock;
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std::unordered_set<TUniqueId> _running_tasks;
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LruCache<TUniqueId, ExportTaskCtx> _success_tasks;
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LruCache<TUniqueId, ExportTaskCtx> _failed_tasks;
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};
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} // end namespace doris
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