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  1. MariaDB Server
  2. MDEV-27649

prepared statement cluster conflict crashing in item parameter setup

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      Description

      Binary protocol prepared statement execution, which happens after cluster wide conflict, may crash in item parameter setup phase for:

      append_query_string (csinfo=0xa5a5a5a5a5a5a5a5, to=0x7fce93673ff0, str=0x7fcea8059458 "", len=11, no_backslash=false)

      Where character set info is not valid.

      The problem can be reproduced in two node cluster with sysbench:
      sysbench --mysql-host=127.0.0.1 --mysql-port=16001 --mysql-user=root --mysql-password= --mysql-db=sbtest --mysql-ignore-errors=all --time=600 --threads=8 --table-size=20 --tables=3 --report-interval=5 /usr/share/sysbench/oltp_write_only.lua run

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            Assignee:
            jplindst Jan Lindström
            Reporter:
            seppo Seppo Jaakola
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              Updated:
              Resolved:

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