--echo # Test for bug #12400341: INNODB CAN LEAVE ORPHAN IBD FILES AROUND --source include/have_debug.inc --source include/have_innodb_default_undo_tablespaces.inc # 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("\\[ERROR\\] .*MY-\\d+.* Cannot find a free slot for an undo log"); set @old_innodb_trx_rseg_n_slots_debug = @@innodb_trx_rseg_n_slots_debug; set global innodb_trx_rseg_n_slots_debug = 5; --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"; show variables like "innodb_rollback_segments"; show variables like "innodb_trx_rseg_n_slots_debug"; --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 # # Add some rows so UPDATE below has something to work on. # let $c = 5; while ($c) { eval INSERT INTO mysqltest.transtable (id) VALUES ($c); dec $c; } let $c = 10; while ($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 all the undo slots. # # CREATE TABLE above creates both cached insert and update slots, with exact # number of slots of each type depending on implementation. Since type of the # slot can't be changed we have to use transactions of both insert and update # types to to fill all undo slots. # --disable_query_log let $c = 10; while ($c > 5) { connection con$c; START TRANSACTION; eval INSERT INTO mysqltest.transtable (id) VALUES ($c); dec $c; } while ($c) { connection con$c; START TRANSACTION; eval UPDATE mysqltest.transtable SET val = 1 WHERE id = 6 - $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 $c = 10; while ($c) { connection con$c; ROLLBACK; dec $c; } --enable_query_log connection default; select count(*) from information_schema.processlist; --disable_query_log let $c = 10; while ($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