flush_block_commit.test
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:2k
源码类别:
MySQL数据库
开发平台:
Visual C++
- # Let's see if FLUSH TABLES WITH READ LOCK blocks COMMIT of existing
- # transactions.
- # We verify that we did not introduce a deadlock.
- # This is intended to mimick how mysqldump and innobackup work.
- # This test doesn't work with the embedded server
- -- source include/not_embedded.inc
- # And it requires InnoDB
- -- source include/have_innodb.inc
- connect (con1,localhost,root,,);
- connect (con2,localhost,root,,);
- connect (con3,localhost,root,,);
- connection con1;
- --disable_warnings
- drop table if exists t1;
- --enable_warnings
- create table t1 (a int) engine=innodb;
- # blocks COMMIT ?
- begin;
- insert into t1 values(1);
- connection con2;
- flush tables with read lock;
- select * from t1;
- connection con1;
- send commit; # blocked by con2
- sleep 1;
- connection con2;
- select * from t1; # verify con1 was blocked and data did not move
- unlock tables;
- connection con1;
- reap;
- # No deadlock ?
- connection con1;
- begin;
- select * from t1 for update;
- connection con2;
- begin;
- send select * from t1 for update; # blocked by con1
- sleep 1;
- connection con3;
- send flush tables with read lock; # blocked by con2
- connection con1;
- commit; # should not be blocked by con3
- connection con2;
- reap;
- connection con3;
- reap;
- unlock tables;
- # BUG#6732 FLUSH TABLES WITH READ LOCK + COMMIT hangs later FLUSH TABLES
- # WITH READ LOCK
- connection con2;
- commit; # unlock InnoDB row locks to allow insertions
- connection con1;
- begin;
- insert into t1 values(10);
- flush tables with read lock;
- commit;
- unlock tables;
- connection con2;
- flush tables with read lock; # bug caused hang here
- unlock tables;
- # BUG#7358 SHOW CREATE DATABASE fails if open transaction
- begin;
- select * from t1;
- show create database test;
- drop table t1;
- # End of 4.1 tests