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Before commit6112853cdain MySQL 4.1.1 introduced the parameter innodb_file_per_table, all InnoDB data was written to the InnoDB system tablespace (often named ibdata1). A serious design problem is that once the system tablespace has grown to some size, it cannot shrink even if the data inside it has been deleted. There are also other design problems, such as the server hang MDEV-29930 that should only be possible when using innodb_file_per_table=0 and innodb_undo_tablespaces=0 (storing both tables and undo logs in the InnoDB system tablespace). The parameter innodb_change_buffering was deprecated in commitb5852ffbee. Starting with commitbaf276e6d4(MDEV-19229) the number of innodb_undo_tablespaces can be increased, so that the undo logs can be moved out of the system tablespace of an existing installation. If all these things (tables, undo logs, and the change buffer) are removed from the InnoDB system tablespace, the only variable-size data structure inside it is the InnoDB data dictionary. DDL operations on .ibd files was optimized in commit86dc7b4d4c(MDEV-24626). That should have removed any thinkable performance advantage of using innodb_file_per_table=0. Since there should be no benefit of setting innodb_file_per_table=0, the parameter should be deprecated. Starting with MySQL 5.6 and MariaDB Server 10.0, the default value is innodb_file_per_table=1.
170 lines
5.6 KiB
Plaintext
170 lines
5.6 KiB
Plaintext
--source include/have_innodb.inc
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# The embedded server does not support restarting in mysql-test-run.
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-- source include/not_embedded.inc
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-- source include/no_valgrind_without_big.inc
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-- source include/innodb_checksum_algorithm.inc
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let MYSQLD_DATADIR=`select @@datadir`;
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let PAGE_SIZE=`select @@innodb_page_size`;
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-- disable_query_log
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call mtr.add_suppression("InnoDB: innodb_force_recovery is on.");
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call mtr.add_suppression("InnoDB: Ignoring tablespace for.*bug16720368");
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call mtr.add_suppression("Found 1 prepared XA transactions");
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call mtr.add_suppression("InnoDB: Operating system error.*in a file operation");
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call mtr.add_suppression("InnoDB: \(The error means\|If you are\)");
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call mtr.add_suppression("InnoDB: Ignoring tablespace `test/bug16720368` because it could not be opened");
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call mtr.add_suppression("InnoDB: Tablespace .* was not found at.*bug16735660");
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call mtr.add_suppression("InnoDB: Plugin initialization aborted*");
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call mtr.add_suppression("Plugin 'InnoDB' init function returned error.");
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call mtr.add_suppression("Plugin 'InnoDB' registration as a STORAGE ENGINE failed.");
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call mtr.add_suppression("Table .*bug16720368.* is corrupted");
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-- enable_query_log
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-- echo #
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-- echo # Bug#16720368 INNODB CRASHES ON BROKEN #SQL*.IBD FILE AT STARTUP
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-- echo #
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SET GLOBAL innodb_purge_rseg_truncate_frequency=1;
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CREATE TABLE bug16720368_1 (a INT PRIMARY KEY) ENGINE=InnoDB;
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connect (con1,localhost,root);
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CREATE TABLE bug16720368 (a INT PRIMARY KEY, b INT) ENGINE=InnoDB;
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INSERT INTO bug16720368 (a) VALUES (1),(2),(3),(4),(5),(6),(7),(8);
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--source include/wait_all_purged.inc
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connection default;
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-- echo # Cleanly shutdown mysqld
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-- source include/shutdown_mysqld.inc
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disconnect con1;
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-- echo # Corrupt FIL_PAGE_TYPE in bug16720368.ibd,
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-- echo # and recompute innodb_checksum_algorithm=crc32
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perl;
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do "$ENV{MTR_SUITE_DIR}/include/crc32.pl";
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my $file = "$ENV{MYSQLD_DATADIR}/test/bug16720368.ibd";
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open(FILE, "+<$file") || die "Unable to open $file";
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binmode FILE;
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my $ps= $ENV{PAGE_SIZE};
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my $page;
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die "Unable to read $file" unless sysread(FILE, $page, $ps) == $ps;
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my $full_crc32 = unpack("N",substr($page,54,4)) & 0x10; # FIL_SPACE_FLAGS
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sysseek(FILE, 3*$ps, 0) || die "Unable to seek $file\n";
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die "Unable to read $file" unless sysread(FILE, $page, $ps) == $ps;
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substr($page,24,2)='42';
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my $polynomial = 0x82f63b78; # CRC-32C
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if ($full_crc32)
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{
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my $ck = mycrc32(substr($page, 0, $ps-4), 0, $polynomial);
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substr($page, $ps-4, 4) = pack("N", $ck);
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}
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else
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{
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my $ck= pack("N",mycrc32(substr($page, 4, 22), 0, $polynomial) ^
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mycrc32(substr($page, 38, $ps - 38 - 8), 0, $polynomial));
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substr($page,0,4)=$ck;
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substr($page,$ps-8,4)=$ck;
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}
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sysseek(FILE, 3*$ps, 0) || die "Unable to rewind $file\n";
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syswrite(FILE, $page, $ps)==$ps || die "Unable to write $file\n";
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close(FILE) || die "Unable to close $file";
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EOF
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-- source include/start_mysqld.inc
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--error ER_NO_SUCH_TABLE_IN_ENGINE
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SELECT COUNT(*) FROM bug16720368;
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--error ER_TABLE_CORRUPT
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INSERT INTO bug16720368 VALUES(1);
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INSERT INTO bug16720368_1 VALUES(1);
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-- echo # Shut down the server to uncorrupt the data.
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-- source include/shutdown_mysqld.inc
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# Uncorrupt the FIL_PAGE_TYPE.
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perl;
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do "$ENV{MTR_SUITE_DIR}/include/crc32.pl";
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my $file = "$ENV{MYSQLD_DATADIR}/test/bug16720368.ibd";
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open(FILE, "+<$file") || die "Unable to open $file";
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binmode FILE;
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my $ps= $ENV{PAGE_SIZE};
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my $page;
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die "Unable to read $file" unless sysread(FILE, $page, $ps) == $ps;
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my $full_crc32 = unpack("N",substr($page,54,4)) & 0x10; # FIL_SPACE_FLAGS
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sysseek(FILE, 3*$ps, 0) || die "Unable to seek $file\n";
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die "Unable to read $file" unless sysread(FILE, $page, $ps) == $ps;
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substr($page,24,2)=pack("H*","45BF");
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my $polynomial = 0x82f63b78; # CRC-32C
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if ($full_crc32)
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{
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my $ck = mycrc32(substr($page, 0, $ps-4), 0, $polynomial);
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substr($page, $ps-4, 4) = pack("N", $ck);
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}
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else
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{
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my $ck= pack("N",mycrc32(substr($page, 4, 22), 0, $polynomial) ^
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mycrc32(substr($page, 38, $ps - 38 - 8), 0, $polynomial));
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substr($page,0,4)=$ck;
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substr($page,$ps-8,4)=$ck;
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}
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sysseek(FILE, 3*$ps, 0) || die "Unable to rewind $file\n";
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syswrite(FILE, $page, $ps)==$ps || die "Unable to write $file\n";
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close(FILE) || die "Unable to close $file";
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EOF
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-- source include/start_mysqld.inc
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INSERT INTO bug16720368 VALUES(9,1);
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SELECT COUNT(*) FROM bug16720368;
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# A debug assertion would fail in buf_block_align_instance()
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# if we did not uncorrupt the page number first.
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DROP TABLE bug16720368, bug16720368_1;
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-- echo #
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-- echo # Bug#16735660 ASSERT TABLE2 == NULL, ROLLBACK OF RESURRECTED TXNS,
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-- echo # DICT_TABLE_ADD_TO_CACHE
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-- echo #
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CREATE TEMPORARY TABLE t1 (a INT PRIMARY KEY) ENGINE=InnoDB;
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BEGIN;
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INSERT INTO t1 VALUES(42);
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-- connect (con1,localhost,root)
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CREATE TABLE bug16735660 (a INT PRIMARY KEY) ENGINE=InnoDB;
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XA START 'x';
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--source ../include/no_checkpoint_start.inc
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INSERT INTO bug16735660 VALUES(1),(2),(3);
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XA END 'x';
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XA PREPARE 'x';
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--connection default
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--let CLEANUP_IF_CHECKPOINT=XA ROLLBACK 'x';DROP TABLE bug16735660;
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--source ../include/no_checkpoint_end.inc
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-- disconnect con1
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-- move_file $MYSQLD_DATADIR/test/bug16735660.ibd $MYSQLD_DATADIR/bug16735660.omg
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-- echo # Attempt to start without an *.ibd file.
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let SEARCH_FILE= $MYSQLTEST_VARDIR/log/mysqld.1.err;
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--source include/start_mysqld.inc
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let SEARCH_PATTERN= \[ERROR\] InnoDB: Tablespace [0-9]+ was not found at .*test.bug16735660.ibd;
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-- source include/search_pattern_in_file.inc
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-- move_file $MYSQLD_DATADIR/bug16735660.omg $MYSQLD_DATADIR/test/bug16735660.ibd
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-- source include/restart_mysqld.inc
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SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
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SELECT * FROM bug16735660;
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XA RECOVER;
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XA ROLLBACK 'x';
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SELECT * FROM bug16735660;
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DROP TABLE bug16735660;
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