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  1. MariaDB Server
  2. MDEV-19813 Aria crash recovery failures
  3. MDEV-18310

Aria engine: Undo phase failed with "Got error 121 when executing undo undo_key_delete" upon startup on datadir restored from incremental backup




      Note: see also MDEV-18203 – different error, otherwise the same.

      10.4 4edb29380c980

      2019-01-18 21:26:44 0 [Note] mysqld: Aria engine: starting recovery
      recovered pages: 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% (20.8 seconds); transactions to roll back: 1
      Got error 121 when executing undo undo_key_delete
      2019-01-18 21:27:05 0 [ERROR] mysqld: Aria engine: Undo phase failed
      tables to flush: 8 7 6 5 4 3 2 1 0
      2019-01-18 21:27:05 0 [ERROR] mysqld: Aria recovery failed. Please run aria_chk -r on all Aria tables and delete all aria_log.######## files
      2019-01-18 21:27:05 0 [ERROR] Plugin 'Aria' init function returned error.
      2019-01-18 21:27:05 0 [ERROR] Plugin 'Aria' registration as a STORAGE ENGINE failed.

      The backup dirs are here:

      backup_before_prepare_0 is the initial full backup
      backup_before_prepare_1 is the 1st incremental backup
      backup_before_prepare_2 is the 1st incremental backup
      backup_0 is the prepared backup after all prepare were executed on it.

      To reproduce the failure, restore backup_0 to the datadir and run the server on it. All server default options are sufficient.

      If you have doubts about the correctness of prepare, you can run it on non-prepared backups.

      mariabackup logs from all stages are attached with hopefully self-explanatory names (mbackup*.log).

      I have no information yet whether it affects previous versions.

      Notes on the origin of the report

      Please be aware it's not necessarily reproducible the same way.

      # 2528 22 2
      Server: 10.4 4edb29380c98058a28e49c826bacee9c83473579
      Tests: elenst-dev 19e81706fbfffc28d2f71d2c22b361ecd4593d9a
      Toolbox: c949673e7706f81f5369ecd91b587b09674ece2b

      perl ./runall-new.pl --basedir=/home/travis/server --vardir=/home/travis/logs/vardir --duration=350 --threads=4 --seed=1547846609 --reporters=Backtrace,ErrorLog,Deadlock --skip-gendata --gendata-advanced --views --grammar=conf/mariadb/generic-dml.yy --redefine=conf/mariadb/bulk_insert.yy --mysqld=--log_output=FILE --mysqld=--max-statement-time=20 --mysqld=--lock-wait-timeout=10 --mysqld=--loose-innodb-lock-wait-timeout=5 --mysqld=--loose-debug_assert_on_not_freed_memory=0 --filter=/home/travis/mariadb-toolbox/travis/10.4-combo-filter.ff --engine=Aria --scenario=MariaBackupIncremental

      The test log is attached as trial.log


        1. mbackup_backup_0.log
          22 kB
        2. mbackup_backup_1.log
          22 kB
        3. mbackup_backup_2.log
          22 kB
        4. mbackup_prepare_0.log
          2 kB
        5. mbackup_prepare_1.log
          22 kB
        6. mbackup_prepare_2.log
          22 kB
        7. mbackup_restore.log
          19 kB
        8. mysql.err
          17 kB
        9. mysql.err_orig
          3 kB
        10. trial.log
          41 kB

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              vlad.lesin Vladislav Lesin
              elenst Elena Stepanova
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