origin/bb-10.6-thiru c3983ee54025d70ffc23daab6af077b592800a22 2022-02-01T12:28:00+05:30 (The tree contains the fix for MDEV-26326).
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But the bad effect should not be caused by the fix for MDEV-26326.
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Workflow:
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1. Start server + generate some initial data.
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2. Several sessions run a DDL/DML mix.
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3. During 2. is ongoing
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mariabackup --backup to some location A
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mariabackup --prepare on location A
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# 2022-02-01T02:58:42 [1307818] | [rr 1397379 822]2022-02-01 2:57:01 0 [Note] InnoDB: !!!!!!!! UNIV_DEBUG switched on !!!!!!!!!
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# 2022-02-01T02:58:42 [1307818] | [rr 1397379 826]2022-02-01 2:57:01 0 [Note] InnoDB: Compressed tables use zlib 1.2.11
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# 2022-02-01T02:58:42 [1307818] | [rr 1397379 851]2022-02-01 2:57:01 0 [Note] InnoDB: Number of pools: 1
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# 2022-02-01T02:58:42 [1307818] | [rr 1397379 855]2022-02-01 2:57:01 0 [Note] InnoDB: Using crc32 + pclmulqdq instructions
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# 2022-02-01T02:58:42 [1307818] | [rr 1397379 881]2022-02-01 2:57:01 0 [Note] InnoDB: Initializing buffer pool, total size = 104857600, chunk size = 104857600
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# 2022-02-01T02:58:42 [1307818] | [rr 1397379 893]2022-02-01 2:57:01 0 [Note] InnoDB: Completed initialization of buffer pool
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# 2022-02-01T02:58:42 [1307818] | [rr 1397379 940]2022-02-01 2:57:01 0 [Note] InnoDB: Setting O_DIRECT on file ./ibdata1 failed
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# 2022-02-01T02:58:42 [1307818] | [rr 1397379 961]2022-02-01 2:57:01 0 [Note] InnoDB: Starting crash recovery from checkpoint LSN=11687970,12259007
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# 2022-02-01T02:58:42 [1307818] | [rr 1397379 1003]2022-02-01 2:57:01 0 [ERROR] InnoDB: Missing FILE_CREATE, FILE_DELETE or FILE_MODIFY before FILE_CHECKPOINT for tablespace 1501
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# 2022-02-01T02:58:42 [1307818] | [rr 1397379 1007]2022-02-01 2:57:01 0 [ERROR] InnoDB: Plugin initialization aborted at srv0start.cc[1445] with error Data structure corruption
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# 2022-02-01T02:58:42 [1307818] | [rr 1397379 1011][00] FATAL ERROR: 2022-02-01 02:57:01 mariabackup: innodb_init() returned 37 (Data structure corruption).
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RQG
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===
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# git clone https://github.com/mleich1/rqg --branch experimental RQG
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#
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# GIT_SHOW: HEAD -> experimental, origin/experimental 067340e8ec78c25880ccd2e67dd62ad134edc531 2022-01-31T17:10:39+01:00
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# rqg.pl : Version 4.0.4 (2021-12)
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#
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# $RQG_HOME/rqg.pl \
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# --grammar=conf/runtime/alter_online.yy \
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# --gendata=conf/runtime/alter_online.zz \
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# --mysqld=--loose-innodb_lock_schedule_algorithm=fcfs \
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# --mysqld=--loose-idle_write_transaction_timeout=0 \
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# --mysqld=--loose-idle_transaction_timeout=0 \
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# --mysqld=--loose-idle_readonly_transaction_timeout=0 \
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# --mysqld=--connect_timeout=60 \
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# --mysqld=--interactive_timeout=28800 \
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# --mysqld=--slave_net_timeout=60 \
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# --mysqld=--net_read_timeout=30 \
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# --mysqld=--net_write_timeout=60 \
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# --mysqld=--loose-table_lock_wait_timeout=50 \
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# --mysqld=--wait_timeout=28800 \
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# --mysqld=--lock-wait-timeout=86400 \
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# --mysqld=--innodb-lock-wait-timeout=50 \
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# --no-mask \
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# --queries=10000000 \
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# --seed=random \
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# --reporters=Backtrace \
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# --reporters=ErrorLog \
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# --reporters=Deadlock1 \
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# --validators=None \
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# --mysqld=--log_output=none \
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# --mysqld=--log_bin_trust_function_creators=1 \
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# --mysqld=--loose-debug_assert_on_not_freed_memory=0 \
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# --engine=InnoDB \
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# --restart_timeout=360 \
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# --mysqld=--plugin-load-add=file_key_management.so \
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# --mysqld=--loose-file-key-management-filename=$RQG_HOME/conf/mariadb/encryption_keys.txt \
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# --mysqld=--plugin-load-add=provider_lzo.so \
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# --mysqld=--plugin-load-add=provider_bzip2.so \
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# --mysqld=--plugin-load-add=provider_lzma \
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# --mysqld=--plugin-load-add=provider_snappy \
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# --mysqld=--plugin-load-add=provider_lz4 \
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# --duration=300 \
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# --mysqld=--loose-innodb_fatal_semaphore_wait_threshold=300 \
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# --mysqld=--loose-innodb_read_only_compressed=OFF \
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# --reporters=Mariabackup_linux \
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# --mysqld=--innodb_log_file_size=402653184 \
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# --duration=300 \
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# --mysqld=--loose-innodb-sync-debug \
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# --mysqld=--innodb_stats_persistent=off \
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# --mysqld=--innodb_adaptive_hash_index=off \
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# --mysqld=--log-bin \
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# --mysqld=--sync-binlog=1 \
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# --mysqld=--loose-innodb_evict_tables_on_commit_debug=off \
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# --mysqld=--loose-max-statement-time=30 \
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# --threads=2 \
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# --mysqld=--innodb-use-native-aio=0 \
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# --mysqld=--loose-gdb \
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# --mysqld=--loose-debug-gdb \
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# --rr=Extended \
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# --rr_options=--wait \
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# --mysqld=--innodb_rollback_on_timeout=OFF \
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# --vardir_type=fast \
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# --mysqld=--innodb_page_size=16K \
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# --mysqld=--innodb-buffer-pool-size=8M \
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# --no_mask \
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# <local settings>
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sdp:/data/results/1643708142/TBR-1345/dev/shm/rqg/1643708142/101/1_clone/rr
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_RR_TRACE_DIR="." rr replay --mark-stdio mariabackup-0 # mariabackup --backup
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_RR_TRACE_DIR="." rr replay --mark-stdio mariabackup-1 # mariabackup --prepare
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