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mariadb/mysql-test/suite/sys_vars/t/innodb_rollback_segments_basic.test
Jan Lindström 2e814d4702 Merge InnoDB 5.7 from mysql-5.7.9.
Contains also

MDEV-10547: Test multi_update_innodb fails with InnoDB 5.7

	The failure happened because 5.7 has changed the signature of
	the bool handler::primary_key_is_clustered() const
	virtual function ("const" was added). InnoDB was using the old
	signature which caused the function not to be used.

MDEV-10550: Parallel replication lock waits/deadlock handling does not work with InnoDB 5.7

	Fixed mutexing problem on lock_trx_handle_wait. Note that
	rpl_parallel and rpl_optimistic_parallel tests still
	fail.

MDEV-10156 : Group commit tests fail on 10.2 InnoDB (branch bb-10.2-jan)
  Reason: incorrect merge

MDEV-10550: Parallel replication can't sync with master in InnoDB 5.7 (branch bb-10.2-jan)
  Reason: incorrect merge
2016-09-02 13:22:28 +03:00

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#
# 2011-08-01 Added
#
--source include/have_innodb.inc
SET @start_global_value = @@global.innodb_rollback_segments;
SELECT @start_global_value;
#
# exists as global only
#
--echo Valid values are zero or above
SELECT @@global.innodb_rollback_segments >=0;
SELECT @@global.innodb_rollback_segments <=128;
SELECT @@global.innodb_rollback_segments;
--error ER_INCORRECT_GLOBAL_LOCAL_VAR
SELECT @@session.innodb_rollback_segments;
SHOW global variables LIKE 'innodb_rollback_segments';
SHOW session variables LIKE 'innodb_rollback_segments';
--disable_warnings
SELECT * FROM information_schema.global_variables
WHERE variable_name='innodb_rollback_segments';
SELECT * FROM information_schema.session_variables
WHERE variable_name='innodb_rollback_segments';
--enable_warnings
#
# show that it's writable
#
SET global innodb_rollback_segments=100;
SELECT @@global.innodb_rollback_segments;
--disable_warnings
SELECT * FROM information_schema.global_variables
WHERE variable_name='innodb_rollback_segments';
SELECT * FROM information_schema.session_variables
WHERE variable_name='innodb_rollback_segments';
--enable_warnings
--error ER_GLOBAL_VARIABLE
SET session innodb_rollback_segments=1;
#
# incorrect types
#
--error ER_WRONG_TYPE_FOR_VAR
SET global innodb_rollback_segments=1.1;
--error ER_WRONG_TYPE_FOR_VAR
SET global innodb_rollback_segments=1e1;
--error ER_WRONG_TYPE_FOR_VAR
SET global innodb_rollback_segments="foo";
SET global innodb_rollback_segments=-7;
SELECT @@global.innodb_rollback_segments;
--disable_warnings
SELECT * FROM information_schema.global_variables
WHERE variable_name='innodb_rollback_segments';
--enable_warnings
#
# cleanup
#
SET @@global.innodb_rollback_segments = @start_global_value;
SELECT @@global.innodb_rollback_segments;