mirror of
https://github.com/MariaDB/server.git
synced 2025-10-30 04:26:45 +03:00
d7b2d4c541
(otherwise a deadlock when ALTER writes to binlog holding LOCK_open, it causes binlog rotation, binlog waits for prepared transactions to commit, and commit needs LOCK_open to check for global read lock)
72 lines
1.5 KiB
Plaintext
72 lines
1.5 KiB
Plaintext
# This test doesn't work with the embedded version as this code
|
|
# assumes that one query is running while we are doing queries on
|
|
# a second connection.
|
|
# This would work if mysqltest run would be threaded and handle each
|
|
# connection in a separate thread.
|
|
#
|
|
-- source include/not_embedded.inc
|
|
|
|
connect (con1,localhost,root,,);
|
|
connect (con2,localhost,root,,);
|
|
connection con1;
|
|
|
|
--disable_warnings
|
|
drop table if exists t1,t2;
|
|
drop database if exists mysqltest;
|
|
--enable_warnings
|
|
|
|
create temporary table t1(n int not null primary key);
|
|
create table t2(n int);
|
|
insert into t2 values(3);
|
|
let $1=100;
|
|
disable_query_log;
|
|
while ($1)
|
|
{
|
|
connection con1;
|
|
send replace into t1 select n from t2;
|
|
connection con2;
|
|
send flush tables;
|
|
connection con1;
|
|
reap;
|
|
connection con2;
|
|
reap;
|
|
dec $1;
|
|
}
|
|
enable_query_log;
|
|
connection con1;
|
|
select * from t1;
|
|
connection con2;
|
|
flush tables with read lock;
|
|
--error 1223
|
|
drop table t2;
|
|
connection con1;
|
|
send drop table t2;
|
|
connection con2;
|
|
unlock tables;
|
|
connection con1;
|
|
reap;
|
|
|
|
#test if drop database will wait until we release the global read lock
|
|
connection con1;
|
|
create database mysqltest;
|
|
create table mysqltest.t1(n int);
|
|
insert into mysqltest.t1 values (23);
|
|
flush tables with read lock;
|
|
connection con2;
|
|
send drop database mysqltest;
|
|
connection con1;
|
|
select * from mysqltest.t1;
|
|
unlock tables;
|
|
connection con2;
|
|
reap;
|
|
|
|
# test if dirty close releases global read lock
|
|
connection con1;
|
|
create table t1 (n int);
|
|
flush tables with read lock;
|
|
dirty_close con1;
|
|
connection con2;
|
|
insert into t1 values (345);
|
|
select * from t1;
|
|
drop table t1;
|