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It turns out that we had some unnecessary waits for no outstanding write requests to exist. They were basically working around a bug that was fixed in MDEV-25953. On write completion callback, blocks will be marked clean. So, it is sufficient to consult buf_pool.flush_list to determine which writes have not been completed yet. On FLUSH TABLES...FOR EXPORT we must still wait for all pending asynchronous writes to complete, because buf_flush_file_space() would merely guarantee that writes will have been initiated. |
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| .. | ||
| os0event.cc | ||
| os0file.cc | ||
| os0thread.cc | ||