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# Test for bug #12400341: INNODB CAN LEAVE ORPHAN IBD FILES AROUND

-- source include/have_innodb.inc

--disable_warnings
if (`select count(*)=0 from information_schema.global_variables where variable_name = 'INNODB_TRX_RSEG_N_SLOTS_DEBUG'`)
{
  --skip Test requires InnoDB built with UNIV_DEBUG definition.
}
--enable_warnings

# Don't test under valgrind, undo slots of the previous test might exist still
# and cause unstable result.
--source include/not_valgrind.inc

--disable_query_log
call mtr.add_suppression("\\[Warning\\] InnoDB: Cannot find a free slot for an undo log. Do you have too");

set @old_innodb_trx_rseg_n_slots_debug = @@innodb_trx_rseg_n_slots_debug;
set global innodb_trx_rseg_n_slots_debug = 32;
--enable_query_log

set @old_innodb_rollback_segments = @@innodb_rollback_segments;
set global innodb_rollback_segments=1;

show variables like "max_connections";
show variables like "innodb_thread_concurrency";
show variables like "innodb_file_per_table";

--disable_warnings
drop database if exists mysqltest;
--enable_warnings

create database mysqltest;
CREATE TABLE mysqltest.transtable (id int unsigned NOT NULL PRIMARY KEY, val int DEFAULT 0) ENGINE=InnoDB;

--disable_query_log
#
# Insert in 1 transaction which needs over 1 page undo record to avoid the insert_undo cached,
# because the cached insert_undo can be reused at "CREATE TABLE" statement later.
#
START TRANSACTION;
let $c = 4096;
while ($c)
{
  eval INSERT INTO mysqltest.transtable (id) VALUES ($c);
  dec $c;
}
COMMIT;

let $c = 32;
while ($c)
{
  # if failed at here, it might be shortage of file descriptors limit.
  connect (con$c,localhost,root,,);
  dec $c;
}
--enable_query_log

select count(*) from information_schema.processlist;

#
# fill the all undo slots
#
--disable_query_log
let $c = 32;
while ($c)
{
  connection con$c;
  START TRANSACTION;
  eval UPDATE mysqltest.transtable SET val = 1 WHERE id = 33 - $c;
  dec $c;
}
--enable_query_log

connection default;

--error ER_TOO_MANY_CONCURRENT_TRXS
CREATE TABLE mysqltest.testtable (id int unsigned not null primary key) ENGINE=InnoDB;

select count(*) from information_schema.processlist;

--disable_query_log
let $c = 32;
while ($c)
{
  connection con$c;
  ROLLBACK;
  dec $c;
}
--enable_query_log

connection default;
select count(*) from information_schema.processlist;

--disable_query_log
let $c = 32;
while ($c)
{
  disconnect con$c;
  dec $c;
}
--enable_query_log

#
# If the isolated .ibd file remained, the drop database should fail.
#
drop database mysqltest;

set global innodb_rollback_segments = @old_innodb_rollback_segments;

--disable_query_log
set global innodb_trx_rseg_n_slots_debug = @old_innodb_trx_rseg_n_slots_debug;
--enable_query_log