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Added support for BACKUP LOCK / BACKUP UNLOCK

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This commit is contained in:
Michael Widenius
2019-01-14 15:46:49 +02:00
parent 3975e22d55
commit aad0165cea
11 changed files with 186 additions and 10 deletions
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mysql-test/main/backup_locks.test Normal file
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########################################################################
# Tests BACKUP STAGE locking
########################################################################
--source include/have_innodb.inc
--source include/have_metadata_lock_info.inc
--source include/not_embedded.inc
--echo #
--echo # Test lock taken
--echo #
BACKUP LOCK test.t1;
SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
BACKUP UNLOCK;
SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
BACKUP LOCK t1;
SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
BACKUP UNLOCK;
BACKUP LOCK non_existing.t1;
SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
BACKUP UNLOCK;
--echo #
--echo # Test that backup lock protects against ddl
--echo #
connect (con1,localhost,root,,);
connection default;
create table t1 (a int) engine=innodb;
insert into t1 values (1);
backup lock t1;
select * from t1;
connection con1;
--send drop table t1
connection default;
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Waiting for table metadata lock";
--source include/wait_condition.inc
SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
--error ER_LOCK_DEADLOCK
select * from t1;
backup unlock;
connection con1;
--reap
connection default;
disconnect con1;
show tables;