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      Hello,

      We make our backups with the mariabackup utility and recently we went from version 10.2 to version 10.5. And we encounter an error for the preparation of the backup. The latter does not retrieve the innodb_log_group_home_dir parameter and leaves it by default, ie "." which is not our case. An error of the type follows :

       
      2021-03-17 15:12:08 0 [Warning] InnoDB: Retry attempts for reading partial data failed.
      2021-03-17 15:12:08 0 [ERROR] InnoDB: Operating system error number 13 in a file operation.
      2021-03-17 15:12:08 0 [ERROR] InnoDB: The error means mysqld does not have the access rights to the directory.
      2021-03-17 15:12:08 0 [ERROR] [FATAL] InnoDB: Tried to read 12288 bytes at offset 2048, but was only able to read 0.Cannot read from file. OS error number 13.
      210317 15:12:08 [ERROR] mysqld got signal 6 ;
      This could be because you hit a bug. It is also possible that this binary
      or one of the libraries it was linked against is corrupt, improperly built,
      or misconfigured. This error can also be caused by malfunctioning hardware.
      

      What is strange is that the backup command works and we can see at the beginning of the log that mariabackup gets the correct parameter. So I tried to overload the command line by adding the option --innodb-log-group-home-dir=/mydir

      But without success...

      Do you have an idea ?

      Best regards.

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            Assignee:
            marko Marko Mäkelä
            Reporter:
            DBA-Yoann yoann
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