call mtr.add_suppression("InnoDB: Warning: cannot find a free slot for an undo log. Do you have too*");
set @old_innodb_undo_logs = @@innodb_undo_logs;
set global innodb_undo_logs=1;
show variables like "max_connections";
Variable_name	Value
max_connections	64
show variables like "innodb_thread_concurrency";
Variable_name	Value
innodb_thread_concurrency	0
show variables like "innodb_file_per_table";
Variable_name	Value
innodb_file_per_table	ON
drop database if exists mysqltest;
create database mysqltest;
CREATE TABLE mysqltest.transtable (id int unsigned NOT NULL PRIMARY KEY, val int DEFAULT 0) ENGINE=InnoDB;
select count(*) from information_schema.processlist;
count(*)
33
CREATE TABLE mysqltest.testtable (id int unsigned not null primary key) ENGINE=InnoDB;
ERROR HY000: Can't create table `mysqltest`.`testtable` (errno: 177 "Too many active concurrent transactions")
select count(*) from information_schema.processlist;
count(*)
33
select count(*) from information_schema.processlist;
count(*)
33
drop database mysqltest;
set global innodb_undo_logs = @old_innodb_undo_logs;