mariadb/mysql-test/suite/innodb/t/innodb_bug11754376.test

#
# Bug#11754376 45976: INNODB LOST FILES FOR TEMPORARY TABLES ON GRACEFUL SHUTDOWN
#

-- source include/have_debug.inc
-- source include/have_innodb.inc

CREATE TABLE bug11754376 (c INT) ENGINE=INNODB;

# This will invoke test_normalize_table_name_low() in debug builds

SET SESSION DEBUG_DBUG='+d,test_normalize_table_name_low';

DROP TABLE bug11754376;

SET SESSION DEBUG_DBUG='-d,test_normalize_table_name_low';
Fix Bug#11754376 45976: INNODB LOST FILES FOR TEMPORARY TABLES ON GRACEFUL SHUTDOWN During startup mysql picks up .frm files from the tmpdir directory and tries to drop those tables in the storage engine. The problem is that when tmpdir ends in / then ha_innobase::delete_table() is passed a string like "/var/tmp//#sql123", then it wrongly normalizes it to "/#sql123" and calls row_drop_table_for_mysql() which of course fails to delete the table entry from the InnoDB dictionary cache. ha_innobase::delete_table() returns an error but nevertheless mysql wipes away the .frm file and the entry in the InnoDB dictionary cache remains orphaned with no easy way to remove it. The "no easy" way to remove it is to create a similar temporary table again, copy its .frm file to tmpdir under "#sql123.frm" and restart mysqld with tmpdir=/var/tmp (no trailing slash) - this way mysql will pick the .frm file after restart and will try to issue drop table for "/var/tmp/#sql123" (notice do double slash), ha_innobase::delete_table() will normalize it to "tmp/#sql123" and row_drop_table_for_mysql() will successfully remove the table entry from the dictionary cache. The solution is to fix normalize_table_name_low() to normalize things like "/var/tmp//table" correctly to "tmp/table". This patch also adds a test function which invokes normalize_table_name_low() with various inputs to make sure it works correctly and a mtr test that calls this test function. Reviewed by: Marko (http://bur03.no.oracle.com/rb/r/929/) 2012-02-06 11:44:59 +01:00			`#`
			`# Bug#11754376 45976: INNODB LOST FILES FOR TEMPORARY TABLES ON GRACEFUL SHUTDOWN`
			`#`

			`-- source include/have_debug.inc`
			`-- source include/have_innodb.inc`

			`CREATE TABLE bug11754376 (c INT) ENGINE=INNODB;`

			`# This will invoke test_normalize_table_name_low() in debug builds`

mysql-5.5.22 merge mysql-test/suite/innodb/t/group_commit_crash.test: remove autoincrement to avoid rbr being used for insert ... select mysql-test/suite/innodb/t/group_commit_crash_no_optimize_thread.test: remove autoincrement to avoid rbr being used for insert ... select mysys/my_addr_resolve.c: a pointer to a buffer is returned to the caller -> the buffer cannot be on the stack mysys/stacktrace.c: my_vsnprintf() is ok here, in 5.5 2012-03-28 01:04:46 +02:00			`SET SESSION DEBUG_DBUG='+d,test_normalize_table_name_low';`
Fix Bug#11754376 45976: INNODB LOST FILES FOR TEMPORARY TABLES ON GRACEFUL SHUTDOWN During startup mysql picks up .frm files from the tmpdir directory and tries to drop those tables in the storage engine. The problem is that when tmpdir ends in / then ha_innobase::delete_table() is passed a string like "/var/tmp//#sql123", then it wrongly normalizes it to "/#sql123" and calls row_drop_table_for_mysql() which of course fails to delete the table entry from the InnoDB dictionary cache. ha_innobase::delete_table() returns an error but nevertheless mysql wipes away the .frm file and the entry in the InnoDB dictionary cache remains orphaned with no easy way to remove it. The "no easy" way to remove it is to create a similar temporary table again, copy its .frm file to tmpdir under "#sql123.frm" and restart mysqld with tmpdir=/var/tmp (no trailing slash) - this way mysql will pick the .frm file after restart and will try to issue drop table for "/var/tmp/#sql123" (notice do double slash), ha_innobase::delete_table() will normalize it to "tmp/#sql123" and row_drop_table_for_mysql() will successfully remove the table entry from the dictionary cache. The solution is to fix normalize_table_name_low() to normalize things like "/var/tmp//table" correctly to "tmp/table". This patch also adds a test function which invokes normalize_table_name_low() with various inputs to make sure it works correctly and a mtr test that calls this test function. Reviewed by: Marko (http://bur03.no.oracle.com/rb/r/929/) 2012-02-06 11:44:59 +01:00
			`DROP TABLE bug11754376;`

mysql-5.5.22 merge mysql-test/suite/innodb/t/group_commit_crash.test: remove autoincrement to avoid rbr being used for insert ... select mysql-test/suite/innodb/t/group_commit_crash_no_optimize_thread.test: remove autoincrement to avoid rbr being used for insert ... select mysys/my_addr_resolve.c: a pointer to a buffer is returned to the caller -> the buffer cannot be on the stack mysys/stacktrace.c: my_vsnprintf() is ok here, in 5.5 2012-03-28 01:04:46 +02:00			`SET SESSION DEBUG_DBUG='-d,test_normalize_table_name_low';`