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Bug#25721

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"Concurrent ALTER/CREATE SERVER can lead to deadlock"
  Deadlock caused by inconsistant use of mutexes in sql_server.cc
  One mutex has been removed to resolve deadlock.
  Many functions were made private which should not be exported.
  Unused variables and function removed.
This commit is contained in:
acurtis/antony@xiphis.org/ltamd64.xiphis.org
2007-03-23 17:31:27 -07:00
parent 32da2907f8
commit 14ccc65994
5 changed files with 226 additions and 227 deletions
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25
mysql-test/r/federated_server.result
View File

@ -189,6 +189,31 @@ drop user guest_select@localhost;
drop table federated.t1;
drop server 's1';
# End of 5.1 tests
use test;
create procedure p1 ()
begin
DECLARE v INT DEFAULT 0;
DECLARE e INT DEFAULT 0;
DECLARE CONTINUE HANDLER FOR SQLEXCEPTION SET e = e + 1;
WHILE v < 10000 do
CREATE SERVER s
FOREIGN DATA WRAPPER mysql
OPTIONS (USER 'Remote', HOST '192.168.1.106', DATABASE 'test');
ALTER SERVER s OPTIONS (USER 'Remote');
DROP SERVER s;
SET v = v + 1;
END WHILE;
SELECT e > 0;
END//
use test;
call p1();
call p1();
e > 0
1
e > 0
1
drop procedure p1;
drop server if exists s;
DROP TABLE IF EXISTS federated.t1;
DROP DATABASE IF EXISTS federated;
DROP TABLE IF EXISTS federated.t1;

35
mysql-test/t/federated_server.test
View File

@ -234,4 +234,39 @@ drop server 's1';
--echo # End of 5.1 tests
#
# Bug#25721 - deadlock with ALTER/CREATE SERVER
#
connect (other,localhost,root,,);
connection master;
use test;
delimiter //;
create procedure p1 ()
begin
DECLARE v INT DEFAULT 0;
DECLARE e INT DEFAULT 0;
DECLARE CONTINUE HANDLER FOR SQLEXCEPTION SET e = e + 1;
WHILE v < 10000 do
CREATE SERVER s
FOREIGN DATA WRAPPER mysql
OPTIONS (USER 'Remote', HOST '192.168.1.106', DATABASE 'test');
ALTER SERVER s OPTIONS (USER 'Remote');
DROP SERVER s;
SET v = v + 1;
END WHILE;
SELECT e > 0;
END//
delimiter ;//
connection other;
use test;
send call p1();
connection master;
call p1();
connection other;
reap;
drop procedure p1;
drop server if exists s;
source include/federated_cleanup.inc;