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  1. Percona Server
  2. PS-5688

Find a way to make filesort() generate temp files and add a new DEBUG_SYNC point for analyzing their content

    Details

    • Type: Improvement
    • Status: Done
    • Priority: Medium
    • Resolution: Fixed
    • Affects Version/s: 5.7, 8.0
    • Fix Version/s: 8.0.16-7, 5.7.27-30
    • Component/s: None
    • Labels:
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      Description

      • Find a way to make MySQL filesort generate temporary files large enough that their content do not fit into IO_CACHE internal buffer and real temp file is created on a disk.
      • Probably extend filesort code with a new DEBUG_SYNC point in order to be able to check temp files content from MTR.

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                • Assignee:
                  yura.sorokin Yura Sorokin
                  Reporter:
                  yura.sorokin Yura Sorokin
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