origin/10.6 4903031baa196dfc9a75638d141b515883cd254c 2021-03-18T17:05:31+02:00
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Worflow:
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1. Start server and generate some initial data
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2. Two sessions run concurrent a DDL mix
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Session 1 runs random
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CHECK TABLE t1 |
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determine processlist id of session 2; KILL SOFT QUERY processlist id of session 2 ;
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Session 2 runs
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ALTER TABLE t1 ADD FULLTEXT KEY ( col_text ) ;
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At some point of time session 1 runs CHECK TABLE t1 and harvests
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Warning InnoDB: Table test/t1 contains 3 indexes inside InnoDB, which is different from the number of indexes 2 defined in the MariaDB
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RQG grammar for illustration
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---------------------------------------------
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thread1:
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CHECK TABLE t1 |
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COMMIT ; SELECT MIN(processlist_id) INTO @kill_id FROM rqg . rqg_sessions WHERE rqg_id <> _thread_id AND processlist_id IS NOT NULL ; COMMIT ; KILL SOFT QUERY @kill_id ;
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thread1_connect:
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;
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thread1_init:
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CREATE TABLE t1 ( col1 INT, col_text TEXT ) ENGINE = InnoDB ROW_FORMAT = Dynamic ; ALTER TABLE t1 ADD COLUMN col1_derivate INT GENERATED ALWAYS AS (col1 * 2) ;
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thread2:
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ALTER TABLE t1 ADD FULLTEXT KEY ( col_text ) ;
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thread2_connect:
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REPLACE INTO rqg . rqg_sessions SET rqg_id = _thread_id , processlist_id = CONNECTION_ID(); COMMIT ; # thread2 publishes his processlist_id
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thread2_init:
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;
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query: # Maybe existing but not needed sessions like thread3, thread4 ... just exit
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{ exit 0 };
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pluto:/data/Results/1616102002/CATCH-001/dev/shm/vardir/1616102002/8/1/rr
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_RR_TRACE_DIR="." rr replay --mark-stdio
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Hint: The rr trace ends with receiving the SIGKILL sent by RQG because of the problem above.
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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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perl rqg.pl \
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--duration=100 \
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--queries=10000000 \
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--no_mask \
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--seed=random \
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--gendata=conf/mariadb/table_stress.zz \
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--gendata_sql=conf/mariadb/table_stress.sql \
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--engine=InnoDB \
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--rpl_mode=none \
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--mysqld=--log-bin \
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--mysqld=--loose-debug_assert_on_not_freed_memory=0 \
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--mysqld=--innodb-buffer-pool-size=24M \
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--mysqld=--loose-idle_write_transaction_timeout=0 \
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--mysqld=--loose-idle_readonly_transaction_timeout=0 \
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--mysqld=--log-output=none \
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--mysqld=--lock-wait-timeout=86400 \
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--mysqld=--loose-idle_transaction_timeout=0 \
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--mysqld=--innodb-lock-wait-timeout=50 \
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--mysqld=--slave_net_timeout=60 \
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--mysqld=--loose_innodb_lock_schedule_algorithm=fcfs \
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--mysqld=--innodb_page_size=64K \
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--mysqld=--loose-table_lock_wait_timeout=50 \
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--mysqld=--net_read_timeout=30 \
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--mysqld=--connect_timeout=60 \
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--mysqld=--innodb_stats_persistent=off \
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--mysqld=--interactive_timeout=28800 \
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--mysqld=--loose-max-statement-time=3 \
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--mysqld=--wait_timeout=28800 \
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--mysqld=--net_write_timeout=60 \
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--mysqld=--plugin-load-add=file_key_management.so \
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--mysqld=--file-key-management-filename=$RQG_HOME/conf/mariadb/encryption_keys.txt \
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--mysqld=--loose_innodb_use_native_aio=0 \
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--mysqld=--log_bin_trust_function_creators=1 \
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--reporters=Backtrace,Deadlock1,ErrorLog \
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--validators=None \
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--threads=3 \
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--grammar=CATCH-001.yy \
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--workdir=<local settings> \
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--vardir=<local settings> \
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--mtr-build-thread=<local settings> \
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--basedir1=<local settings> \
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--script_debug=_nix_ \
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--rr=Extended \
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--rr_options=--chaos
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Bug
Critical
