config root man

--echo #
--echo # Bug#69122 - INNODB DOESN'T REDO-LOG INSERT BUFFER MERGE
--echo #             OPERATION IF IT IS DONE IN-PLACE
--echo #
--source include/have_innodb.inc
# innodb_change_buffering_debug option is debug only
--source include/have_debug.inc
# Embedded server does not support crashing
--source include/not_embedded.inc
# DBUG_SUICIDE() hangs under valgrind
--source include/not_valgrind.inc

CREATE TABLE t1(
	a INT AUTO_INCREMENT PRIMARY KEY,
	b CHAR(1),
	c INT,
	INDEX(b))
ENGINE=InnoDB STATS_PERSISTENT=0;

# The flag innodb_change_buffering_debug is only available in debug builds.
# It instructs InnoDB to try to evict pages from the buffer pool when
# change buffering is possible, so that the change buffer will be used
# whenever possible.
SET GLOBAL innodb_change_buffering_debug = 1;
let SEARCH_FILE = $MYSQLTEST_VARDIR/tmp/my_restart.err;

# Create enough rows for the table, so that the change buffer will be
# used for modifying the secondary index page. There must be multiple
# index pages, because changes to the root page are never buffered.
INSERT INTO t1 VALUES(0,'x',1);
INSERT INTO t1 SELECT 0,b,c FROM t1;
INSERT INTO t1 SELECT 0,b,c FROM t1;
INSERT INTO t1 SELECT 0,b,c FROM t1;
INSERT INTO t1 SELECT 0,b,c FROM t1;
INSERT INTO t1 SELECT 0,b,c FROM t1;
INSERT INTO t1 SELECT 0,b,c FROM t1;
INSERT INTO t1 SELECT 0,b,c FROM t1;
INSERT INTO t1 SELECT 0,b,c FROM t1;
INSERT INTO t1 SELECT 0,b,c FROM t1;
INSERT INTO t1 SELECT 0,b,c FROM t1;
INSERT INTO t1 SELECT 0,b,c FROM t1;
INSERT INTO t1 SELECT 0,b,c FROM t1;
INSERT INTO t1 SELECT 0,b,c FROM t1;

BEGIN;
SELECT b FROM t1 LIMIT 3;

connect (con1,localhost,root,,);
connection con1;
BEGIN;
DELETE FROM t1 WHERE a=1;
# This should be buffered, if innodb_change_buffering_debug = 1 is in effect.
INSERT INTO t1 VALUES(1,'X',1);

SET DEBUG='+d,crash_after_log_ibuf_upd_inplace';
--exec echo "wait" > $MYSQLTEST_VARDIR/tmp/mysqld.1.expect
--error 2013
# This should force a change buffer merge
SELECT b FROM t1 LIMIT 3;

let SEARCH_PATTERN=Wrote log record for ibuf update in place operation;
--source include/search_pattern_in_file.inc

# Write file to make mysql-test-run.pl start up the server again
--exec echo "restart" > $MYSQLTEST_VARDIR/tmp/mysqld.1.expect
--enable_reconnect
--source include/wait_until_connected_again.inc

CHECK TABLE t1;

# Cleanup
DROP TABLE t1;