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  1. MariaDB Server
  2. MDEV-6156

Parallel replication incorrectly caches charset between worker threads

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    Details

    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 10.0.10
    • Fix Version/s: 10.0.11
    • Component/s: None
    • Labels:
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      Description

      As reported by nanyi607rao on maria-developers@lists.launchpad.net:

      > If character_set in different Query_log_events changed, worker threads may
      apply them with wrong character_set. the codes leading this problem is in
      Query_log_event::do_apply_event, that is:
      > if (charset_inited)
      > {
      > if (rli->cached_charset_compare(charset))

      Clearly, the rli cannot be used to cache charset between Queries when parallel
      replication is used.

      Probably the solution is to move the cached_charset stuff from Relay_log_info
      into rpl_group_info.

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              Assignee:
              knielsen Kristian Nielsen
              Reporter:
              knielsen Kristian Nielsen
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                Updated:
                Resolved:

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