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Note: The test case currently fails for me every time, but it's still a race condition, so it can vary on different machines and builds. Run with --repeat=N if it doesn't fail right away. We can also convert it into a concurrent test if necessary.
CREATE TABLE t1 (a INT) ENGINE=MyISAM;
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--connect (con1,localhost,root,,test)
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BACKUP STAGE START;
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--send
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BACKUP STAGE BLOCK_COMMIT;
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--connection default
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SET lock_wait_timeout= 1;
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--error ER_LOCK_WAIT_TIMEOUT
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ALTER TABLE t1 ADD INDEX (a);
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--connection con1
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--reap
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# Cleanup
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--disconnect con1
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--connection default
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DROP TABLE t1;
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10.4 301bd62b253
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mysqltest: At line 14: query 'reap' failed: 1213: Deadlock found when trying to get lock; try restarting transaction
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The most important effect is that MariaBackup backup might fail with the deadlock error.
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