chaoyli commented on issue #2896: Import a new ThreadPool Framework URL: https://github.com/apache/incubator-doris/issues/2896#issuecomment-585758880 This ThreadPool have three features. **Using a token mechanism to receive tasks.** In Doris, tasks are submitted into ThreadPool without group. If a task in one group should be handled serially, it will stall all tasks in ThreadPool. For example, MemTableFlush tasks belong to different tablets can be flushed concurrently and tasks belongs one tablet should be flushed serially. 2. Support set min_threads and max_threads in ThreadPool. At peek time, ThreadPool can expand threads up to max_threads. 3. New thread implementation which is better to trace on resource usage than C++ library.
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