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Adapt the innodb_undo tests from MySQL 5.7

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Simplify the tests that are present in MySQL 5.7. Make the table
smaller while generating enough undo log. Do not unnecessarily
drop tables.

trx_purge_initiate_truncate(): Remove two crash injection points
(before and after normal redo log checkpoint), because they are
not adding any value. Clarify some messages.

trx_sys_create_rsegs(): Display the number of active undo tablespaces.

srv_undo_tablespaces_init(): When initializing the data files, do not
leave srv_undo_tablespaces_active at 0.
Do not display that number; let trx_sys_create_rsegs() display it once
the final number is known.

innodb_params_adjust(): Adjust parameters after startup.

innobase_init(): Do not allow innodb_max_undo_size to be less
than SRV_UNDO_TABLESPACE_SIZE_IN_PAGES. This avoids unnecessary
repeated truncation of undo tablespaces when using
innodb_page_size=32k or innodb_page_size=64k.
This commit is contained in:
Marko Mäkelä
2017-04-25 09:26:01 +03:00
parent d1bcc1f49f
commit ce3ffefc45
16 changed files with 363 additions and 83 deletions
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72
mysql-test/suite/innodb_undo/t/truncate.test Normal file
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#
# WL#6965: Truncate UNDO logs.
#
--source include/have_innodb.inc
--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
SET GLOBAL innodb_fast_shutdown=0;
--let $restart_parameters=--innodb_undo_tablespaces=2 --innodb_undo_logs=4
--source include/restart_mysqld.inc
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 primary key, c1 char(100)) engine = innodb;
begin;
--disable_query_log
let $i=30000;
while ($i) {
eval insert into t1 values(30000-$i, '');
dec $i;
}
--enable_query_log
update t1 set c1 = 'mysql';
update t1 set c1 = 'oracle';
delete from t1;
commit;
drop table t1;
let CHECKFILE = $MYSQL_TMP_DIR/check.txt;
perl;
($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;
SET GLOBAL innodb_undo_log_truncate=1;
SET GLOBAL innodb_purge_rseg_truncate_frequency=1;
--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
--remove_file $CHECKFILE
if ($size1 == $size2)
{
echo Truncation did not happen: $size1 == $size2;
}
--let $restart_parameters=
--source include/start_mysqld.inc