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#
# WL#6965: Truncate UNDO logs.
#
--source include/have_innodb_max_16k.inc
--source include/have_undo_tablespaces.inc
# The test is restarting the server to force undo truncation.
--source include/not_embedded.inc
--source include/big_test.inc
--let $restart_parameters="restart: --innodb_undo_tablespaces=2 --innodb_rollback_segments=35"
--source include/restart_mysqld.inc
################################################################################
# Test-case will test following scenarios.
#
# 1. Perform enough DML action so that undo tablespace size grows beyond
# set threshold and then wait and see if it is being truncated.
#
################################################################################
#-----------------------------------------------------------------------------
#
# create test-bed
#
let MYSQLD_DATADIR = `select @@datadir`;
#-----------------------------------------------------------------------------
#
# 1. Perform enough DML action so that undo tablespace size grows beyond
# set threshold and then wait and see if it is being truncated.
#
create table t1
(keyc int, c1 char(100), c2 char(100),
primary key(keyc)) engine = innodb;
delimiter |;
CREATE PROCEDURE populate_t1()
BEGIN
DECLARE i INT DEFAULT 1;
while (i <= 40000) DO
insert into t1 values (i, 'a', 'b');
SET i = i + 1;
END WHILE;
END |
delimiter ;|
begin;
call populate_t1();
delete from t1 where keyc < 20000;
update t1 set c1 = 'mysql' where keyc > 20000;
update t1 set c2 = 'oracle' where keyc > 20000;
#
commit;
drop table t1;
drop PROCEDURE populate_t1;
let CHECKFILE = $MYSQLTEST_VARDIR/log/check.txt;
perl;
($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size1)
= stat("$ENV{MYSQLD_DATADIR}/undo001");
($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size2)
= stat("$ENV{MYSQLD_DATADIR}/undo002");
open(OUT, ">$ENV{CHECKFILE}") || die;
print OUT "let \$size1='$size1,$size2';\n";
close(OUT);
EOF
SET GLOBAL innodb_fast_shutdown=0;
--source include/shutdown_mysqld.inc
--source $CHECKFILE
perl;
($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size1)
= stat("$ENV{MYSQLD_DATADIR}/undo001");
($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size2)
= stat("$ENV{MYSQLD_DATADIR}/undo002");
open(OUT, ">$ENV{CHECKFILE}") || die;
print OUT "let \$size2='$size1,$size2';\n";
close(OUT);
EOF
--source $CHECKFILE
if ($size1 == $size2)
{
echo Truncation did not happen: $size1 == $size2;
}
--let $restart_parameters=
--source include/start_mysqld.inc