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  1. MariaDB Server
  2. MDEV-28832

infinite loop in mariabackup if log LOG_HEADER_FORMAT field is 0

Details

    Description

      After MDEV-28473 fix, there is infinite loop in mariabackup:

              if (err != DB_SUCCESS) {
      		 
                      msg("Error: cannot read redo log header");
      		 
      unlock_and_fail:
      		 
                      mysql_mutex_unlock(&log_sys.mutex);
      		 
              }
      		 
       
      		 
              if (log_sys.log.format == 0) {
      		 
                      msg("Error: cannot process redo log before MariaDB 10.2.2");
      		 
                      goto unlock_and_fail;
      		 
              }

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          is caused by

          Bug - A problem which impairs or prevents the functions of the product. MDEV-28473 field_ref_zero is not initialized in xtrabackup_prepare_func()

          • Major - Major loss of function.
          • Closed

          Activity

            vlad.lesin Vladislav Lesin added a comment -

            I was unable to reproduce any infinite loop even with a hand-crafted log file. It could require running a newer major version mariadb-backup against an older server.

            vlad.lesin Vladislav Lesin added a comment - I was unable to reproduce any infinite loop even with a hand-crafted log file. It could require running a newer major version mariadb-backup against an older server.

            People

              vlad.lesin Vladislav Lesin
              vlad.lesin Vladislav Lesin
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              Dates

                Created:
                Updated:
                Resolved:

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