mariadb/mysql-test/suite/innodb/t/row_format_redundant.test
Marko Mäkelä 88733282fb MDEV-32050: Look up tables in the purge coordinator
The InnoDB table lookup in purge worker threads is a bottleneck that can
degrade a slow shutdown to utilize less than 2 threads. Let us fix that
bottleneck by constructing a local lookup table that does not require any
synchronization while the undo log records of the current batch
are being processed.

TRX_PURGE_TABLE_BUCKETS: The initial number of std::unordered_map
hash buckets used during a purge batch. This could avoid some
resizing and rehashing in trx_purge_attach_undo_recs().

purge_node_t::tables: A lookup table from table ID to an already
looked up and locked table. Replaces many fields.

trx_purge_attach_undo_recs(): Look up each table in the purge batch
only once.

trx_purge(): Close all tables and release MDL at the end of the batch.

trx_purge_table_open(), trx_purge_table_acquire(): Open a table in purge
and acquire a metadata lock on it. This replaces
dict_table_open_on_id<true>() and dict_acquire_mdl_shared().

purge_sys_t::close_and_reopen(): In case of an MDL conflict, close and
reopen all tables that are covered by the current purge batch.
It may be that some of the tables have been dropped meanwhile and can
be ignored. This replaces wait_SYS() and wait_FTS().

row_purge_parse_undo_rec(): Make purge_coordinator_task issue a
MDL warrant to any purge_worker_task which might need it
when innodb_purge_threads>1.

purge_node_t::end(): Clear the MDL warrant.

Reviewed by: Vladislav Lesin and Vladislav Vaintroub
2023-10-25 10:08:20 +03:00

166 lines
5.8 KiB
Text

--source include/have_innodb.inc
# Embedded mode doesn't allow restarting
--source include/not_embedded.inc
--source include/have_sequence.inc
--disable_query_log
call mtr.add_suppression("InnoDB: Table `mysql`\\.`innodb_table_stats` not found");
call mtr.add_suppression("InnoDB: Table test/t1 in InnoDB data dictionary contains invalid flags. SYS_TABLES\\.TYPE=1 SYS_TABLES\\.MIX_LEN=511\\r?$");
call mtr.add_suppression("InnoDB: Parent table of FTS auxiliary table test/FTS_.* not found");
call mtr.add_suppression("InnoDB: Cannot open table test/t1 from the internal data dictionary");
call mtr.add_suppression("InnoDB: Table `test`.`t1` does not exist in the InnoDB internal data dictionary though MariaDB is trying to (rename|drop)");
FLUSH TABLES;
--enable_query_log
let INNODB_PAGE_SIZE=`select @@innodb_page_size`;
let bugdir= $MYSQLTEST_VARDIR/tmp/row_format_redundant;
--mkdir $bugdir
--let SEARCH_FILE = $MYSQLTEST_VARDIR/log/mysqld.1.err
--let $d=--innodb-data-home-dir=$bugdir --innodb-log-group-home-dir=$bugdir
--let $d=$d --innodb-data-file-path=ibdata1:1M:autoextend
--let $d=$d --innodb-undo-tablespaces=0 --innodb-stats-persistent=0
--let $restart_parameters= $d
# Ensure that any DDL records from previous tests have been purged.
SET GLOBAL innodb_fast_shutdown=0;
--source include/restart_mysqld.inc
SET GLOBAL innodb_file_per_table=1;
--echo #
--echo # Bug#21644827 - FTS, ASSERT !SRV_READ_ONLY_MODE || M_IMPL.M_LOG_MODE ==
--echo # MTR_LOG_NO_REDO
--echo #
SET GLOBAL innodb_file_per_table=ON;
create table t1 (a int not null, d varchar(15) not null, b
varchar(198) not null, c char(156)) engine=InnoDB
row_format=redundant;
create temporary table t like t1;
insert into t values(123, 'abcdef', 'jghikl', 'mnop');
insert into t values(456, 'abcdef', 'jghikl', 'mnop');
insert into t values(789, 'abcdef', 'jghikl', 'mnop');
insert into t values(134, 'kasdfsdsadf', 'adfjlasdkfjasd', 'adfsadflkasdasdfljasdf');
insert into t1 select a,d,b,c from t, seq_1_to_1024;
SET GLOBAL innodb_file_per_table=OFF;
create table t2 (a int not null, d varchar(15) not null, b
varchar(198) not null, c char(156), fulltext ftsic(c)) engine=InnoDB
row_format=redundant;
insert into t2 select a,d,b,c from t, seq_1_to_1024;
create table t3 (a int not null, d varchar(15) not null, b varchar(198),
c varchar(150), index k1(c(99), b(56)), index k2(b(5), c(10))) engine=InnoDB
row_format=redundant;
insert into t3 values(444, 'dddd', 'bbbbb', 'aaaaa');
insert into t3 values(555, 'eeee', 'ccccc', 'aaaaa');
# read-only restart requires the change buffer to be empty; therefore we
# do a slow shutdown.
SET GLOBAL innodb_fast_shutdown=0;
--let $restart_parameters= $d --innodb-read-only
--source include/restart_mysqld.inc
SELECT COUNT(*) FROM t1;
SELECT COUNT(*) FROM t2;
SELECT COUNT(*) FROM t3;
--error ER_OPEN_AS_READONLY
TRUNCATE TABLE t1;
--error ER_OPEN_AS_READONLY
TRUNCATE TABLE t2;
--error ER_OPEN_AS_READONLY
TRUNCATE TABLE t3;
--let $restart_parameters= $d --skip-innodb-fast-shutdown
--source include/restart_mysqld.inc
TRUNCATE TABLE t1;
TRUNCATE TABLE t2;
TRUNCATE TABLE t3;
--source include/shutdown_mysqld.inc
--perl
use strict;
do "$ENV{MTR_SUITE_DIR}/include/crc32.pl";
my $ps= $ENV{INNODB_PAGE_SIZE};
my $file= "$ENV{bugdir}/ibdata1";
open(FILE, "+<", $file) || die "Unable to open $file\n";
die "Unable to read $file" unless sysread(FILE, $_, $ps) == $ps;
my $full_crc32 = unpack("N",substr($_,54,4)) & 0x10; # FIL_SPACE_FLAGS;
sysseek(FILE, 0, 0) || die "Unable to seek $file";
# Read DICT_HDR_TABLES, the root page number of CLUST_IND (SYS_TABLES.NAME).
sysseek(FILE, 7*$ps+38+32, 0) || die "Unable to seek $file";
die "Unable to read $file" unless sysread(FILE, $_, 4) == 4;
my $sys_tables_root = unpack("N", $_);
my $page;
sysseek(FILE, $sys_tables_root*$ps, 0) || die "Unable to seek $file";
die "Unable to read $file" unless sysread(FILE, $page, $ps) == $ps;
for (my $offset= 0x65; $offset;
$offset= unpack("n", substr($page,$offset-2,2)))
{
my $n_fields= unpack("n", substr($page,$offset-4,2)) >> 1 & 0x3ff;
my $start= 0;
my $end= unpack("C", substr($page, $offset-7, 1));
my $name= substr($page,$offset+$start,$end-$start);
for (my $i= 0; $i < $n_fields; $i++) {
my $end= unpack("C", substr($page, $offset-7-$i, 1));
# Corrupt SYS_TABLES.MIX_LEN (ignored for ROW_FORMAT=REDUNDANT)
if ($i == 7 && $name =~ '^test/t[123]')
{
print "corrupted SYS_TABLES.MIX_LEN for $name\n";
substr($page,$offset+$start,$end-$start)= pack("N", 511);
}
$start= $end & 0x7f;
}
}
my $polynomial = 0x82f63b78; # CRC-32C
if ($full_crc32) {
my $ck = mycrc32(substr($page, 0, $ps-4), 0, $polynomial);
substr($page, $ps-4, 4) = pack("N", $ck);
} else {
my $ck= pack("N",mycrc32(substr($page, 4, 22), 0, $polynomial) ^
mycrc32(substr($page, 38, $ps - 38 - 8), 0, $polynomial));
substr($page,0,4)=$ck;
substr($page,$ps-8,4)=$ck;
}
sysseek(FILE, $sys_tables_root*$ps, 0) || die "Unable to seek $file";
syswrite(FILE, $page, $ps)==$ps || die "Unable to write $file\n";
close(FILE) || die "Unable to close $file\n";
EOF
--source include/start_mysqld.inc
--error ER_NO_SUCH_TABLE_IN_ENGINE
TRUNCATE TABLE t1;
TRUNCATE TABLE t2;
TRUNCATE TABLE t3;
--error ER_NO_SUCH_TABLE_IN_ENGINE
SELECT COUNT(*) FROM t1;
SELECT COUNT(*) FROM t2;
SELECT COUNT(*) FROM t3;
--error ER_ERROR_ON_RENAME
RENAME TABLE t1 TO tee_one;
DROP TABLE t1;
DROP TABLE t2,t3;
--let SEARCH_PATTERN= \[ERROR\] InnoDB: Table test/t1 in InnoDB data dictionary contains invalid flags\. SYS_TABLES\.TYPE=1 SYS_TABLES\.MIX_LEN=511\b
--source include/search_pattern_in_file.inc
--let $restart_parameters=
--source include/restart_mysqld.inc
--list_files $bugdir
--remove_files_wildcard $bugdir
--rmdir $bugdir
# Remove the data file, because DROP TABLE skipped it for the "corrupted" table
--let MYSQLD_DATADIR=`select @@datadir`
--remove_file $MYSQLD_DATADIR/test/t1.ibd
--list_files $MYSQLD_DATADIR/test