branch-2.1: [fix] (streamload) fixed the issue of data loss due to concurrency wh… #48948 #49937
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Thank you for your contribution to Apache Doris. Please clearly describe your PR:
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…en importing data from streamload (apache#48948) This is mainly to solve the multithreading problem caused by inconsistent visible order of EOS and data_queue variables in doris's streamload function and asyn_result_writer in the process_block process due to the compilation reordering of the ARM system or the weak memory order problem, which leads to data loss. Problem Summary: Mainly in the arm architecture, streamload has data loss problems. The transaction of importing data can be executed and submitted normally, but the NumberTotalRowshe NumberFilterRows in the returned load result are both zero [Uploading stream_load_lost_data.docx…]() ((https://github.com/user-attachments/files/19201955/stream_load.docx)) Co-authored-by: lik40 <lik40@chinatelecom.cn>
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PR approved by at least one committer and no changes requested. |
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yiguolei
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Apr 11, 2025
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cherry pick from #48948