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47 lines
1.5 KiB
Text
47 lines
1.5 KiB
Text
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#
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# Test lock taken
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#
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BACKUP LOCK test.t1;
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SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
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LOCK_MODE LOCK_TYPE TABLE_SCHEMA TABLE_NAME
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MDL_SHARED_HIGH_PRIO Table metadata lock test t1
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BACKUP UNLOCK;
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SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
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LOCK_MODE LOCK_TYPE TABLE_SCHEMA TABLE_NAME
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BACKUP LOCK t1;
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SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
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LOCK_MODE LOCK_TYPE TABLE_SCHEMA TABLE_NAME
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MDL_SHARED_HIGH_PRIO Table metadata lock test t1
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BACKUP UNLOCK;
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BACKUP LOCK non_existing.t1;
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SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
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LOCK_MODE LOCK_TYPE TABLE_SCHEMA TABLE_NAME
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MDL_SHARED_HIGH_PRIO Table metadata lock non_existing t1
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BACKUP UNLOCK;
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#
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# Test that backup lock protects against ddl
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#
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connect con1,localhost,root,,;
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connection default;
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create table t1 (a int) engine=innodb;
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insert into t1 values (1);
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backup lock t1;
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select * from t1;
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a
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1
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connection con1;
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drop table t1;
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connection default;
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SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
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LOCK_MODE LOCK_TYPE TABLE_SCHEMA TABLE_NAME
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MDL_SHARED_HIGH_PRIO Table metadata lock test t1
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MDL_INTENTION_EXCLUSIVE Schema metadata lock test
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select * from t1;
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ERROR 40001: Deadlock found when trying to get lock; try restarting transaction
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backup unlock;
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connection con1;
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connection default;
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disconnect con1;
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show tables;
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Tables_in_test
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