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caad34df54
- InnoDB fails to find the space id from the page0 of the tablespace. In that case, InnoDB can use doublewrite buffer to recover the page0 and write into the file. - buf_dblwr_t::init_or_load_pages(): Loads only the pages which are valid.(page lsn >= checkpoint). To do that, InnoDB has to open the redo log before system tablespace, read the latest checkpoint information. recv_dblwr_t::find_first_page(): 1) Iterate the doublewrite buffer pages and find the 0th page 2) Read the tablespace flags, space id from the 0th page. 3) Read the 1st, 2nd and 3rd page from tablespace file and compare the space id with the space id which is stored in doublewrite buffer. 4) If it matches then we can write into the file. 5) Return space which matches the pages from the file. SysTablespace::read_lsn_and_check_flags(): Remove the retry logic for validating the first page. After restoring the first page from doublewrite buffer, assign tablespace flags by reading the first page. recv_recovery_read_max_checkpoint(): Reads the maximum checkpoint information from log file recv_recovery_from_checkpoint_start(): Avoid reading the checkpoint header information from log file Datafile::validate_first_page(): Throw error in case of first page validation fails.
170 lines
6 KiB
Text
170 lines
6 KiB
Text
--echo #
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--echo # Bug #17335427 INNODB CAN NOT USE THE DOUBLEWRITE BUFFER PROPERLY
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--echo # Bug #18144349 INNODB CANNOT USE THE DOUBLEWRITE BUFFER FOR THE FIRST
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--echo # PAGE OF SYSTEM TABLESPACE
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--echo #
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--source include/innodb_page_size.inc
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--source include/have_debug.inc
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--source include/not_embedded.inc
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--disable_query_log
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call mtr.add_suppression("InnoDB: Data file .* uses page size .* but the innodb_page_size start-up parameter is");
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call mtr.add_suppression("InnoDB: adjusting FSP_SPACE_FLAGS");
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call mtr.add_suppression("InnoDB: New log files created");
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call mtr.add_suppression("InnoDB: Cannot create doublewrite buffer: the first file in innodb_data_file_path must be at least (3|6|12)M\\.");
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call mtr.add_suppression("InnoDB: Database creation was aborted");
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call mtr.add_suppression("Plugin 'InnoDB' (init function returned error|registration as a STORAGE ENGINE failed)");
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call mtr.add_suppression("InnoDB: A bad Space ID was found in datafile");
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call mtr.add_suppression("InnoDB: Checksum mismatch in datafile: ");
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call mtr.add_suppression("InnoDB: Inconsistent tablespace ID in .*t1\\.ibd");
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call mtr.add_suppression("InnoDB: Header page consists of zero bytes in datafile:");
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--enable_query_log
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let INNODB_PAGE_SIZE=`select @@innodb_page_size`;
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let MYSQLD_DATADIR=`select @@datadir`;
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let ALGO=`select @@innodb_checksum_algorithm`;
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let SEARCH_FILE= $MYSQLTEST_VARDIR/log/mysqld.1.err;
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show variables like 'innodb_doublewrite';
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show variables like 'innodb_fil_make_page_dirty_debug';
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show variables like 'innodb_saved_page_number_debug';
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create table t1 (f1 int primary key, f2 blob) engine=innodb;
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start transaction;
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insert into t1 values(1, repeat('#',12));
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insert into t1 values(2, repeat('+',12));
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insert into t1 values(3, repeat('/',12));
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insert into t1 values(4, repeat('-',12));
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insert into t1 values(5, repeat('.',12));
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commit work;
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--echo # Test Begin: Test if recovery works if 1st page and 2nd page
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--echo # of system tablespace is full of zeroes.
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# Slow shutdown and restart to make sure ibuf merge is finished
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SET GLOBAL innodb_fast_shutdown = 0;
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let $shutdown_timeout=;
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let $restart_parameters="--debug_dbug=+d,ib_log_checkpoint_avoid_hard --innodb_flush_sync=0";
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--source include/restart_mysqld.inc
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--source ../include/no_checkpoint_start.inc
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begin;
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insert into t1 values (6, repeat('%', 400));
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--echo # Make the first page dirty for system tablespace
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set global innodb_saved_page_number_debug = 0;
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set global innodb_fil_make_page_dirty_debug = 0;
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--echo # Make the second page dirty for system tablespace
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set global innodb_saved_page_number_debug = 1;
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set global innodb_fil_make_page_dirty_debug = 0;
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set global innodb_buf_flush_list_now = 1;
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--let CLEANUP_IF_CHECKPOINT=drop table t1, unexpected_checkpoint;
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--source ../include/no_checkpoint_end.inc
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--echo # Make the 1st page (page_no=0) and 2nd page (page_no=1)
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--echo # of the system tablespace all zeroes.
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perl;
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use IO::Handle;
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my $fname= "$ENV{'MYSQLD_DATADIR'}ibdata1";
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open(FILE, "+<", $fname) or die;
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FILE->autoflush(1);
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binmode FILE;
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print FILE chr(0) x ($ENV{'INNODB_PAGE_SIZE'});
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seek(FILE, $ENV{'INNODB_PAGE_SIZE'}, SEEK_SET);
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print FILE chr(0) x ($ENV{'INNODB_PAGE_SIZE'});
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close FILE;
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EOF
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let $restart_parameters=;
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--source include/start_mysqld.inc
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let SEARCH_PATTERN=InnoDB: Restoring page \[page id: space=0, page number=0\] of datafile;
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--source include/search_pattern_in_file.inc
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let SEARCH_PATTERN=InnoDB: Recovered page \[page id: space=0, page number=1\];
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--source include/search_pattern_in_file.inc
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check table t1;
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select f1, f2 from t1;
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--echo # Test End
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--echo # ---------------------------------------------------------------
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--echo # Test Begin: Test if recovery works if 1st page of
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--echo # system tablespace is corrupted and 2nd page as corrupted.
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let $restart_parameters="--debug_dbug=+d,ib_log_checkpoint_avoid_hard --innodb_flush_sync=0";
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--source include/restart_mysqld.inc
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--source ../include/no_checkpoint_start.inc
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begin;
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insert into t1 values (6, repeat('%', 400));
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--echo # Make the first page dirty for system tablespace
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set global innodb_saved_page_number_debug = 0;
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set global innodb_fil_make_page_dirty_debug = 0;
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--echo # Make the second page dirty for system tablespace
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set global innodb_saved_page_number_debug = 1;
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set global innodb_fil_make_page_dirty_debug = 0;
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set global innodb_buf_flush_list_now = 1;
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--source ../include/no_checkpoint_end.inc
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--echo # Corrupt the 1st page (page_no=0) and 2nd page of the system tablespace.
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perl;
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use IO::Handle;
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my $fname= "$ENV{'MYSQLD_DATADIR'}ibdata1";
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open(FILE, "+<", $fname) or die;
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FILE->autoflush(1);
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binmode FILE;
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print FILE chr(0) x ($ENV{'INNODB_PAGE_SIZE'}/2);
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seek(FILE, $ENV{'INNODB_PAGE_SIZE'}, SEEK_SET);
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print FILE chr(0) x ($ENV{'INNODB_PAGE_SIZE'}/2);
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close FILE;
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EOF
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let $restart_parameters=;
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--source include/start_mysqld.inc
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let SEARCH_PATTERN=InnoDB: Restoring page \[page id: space=0, page number=0\] of datafile;
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--source include/search_pattern_in_file.inc
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let SEARCH_PATTERN=InnoDB: Recovered page \[page id: space=0, page number=1\];
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--source include/search_pattern_in_file.inc
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check table t1;
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select f1, f2 from t1;
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drop table t1;
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let $shutdown_timeout=;
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--echo # Test End
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--echo # ---------------------------------------------------------------
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--echo #
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--echo # MDEV-12600 crash during install_db with innodb_page_size=32K
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--echo # and ibdata1=3M
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--echo #
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let bugdir= $MYSQLTEST_VARDIR/tmp/doublewrite;
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--mkdir $bugdir
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let $check_no_innodb=SELECT * FROM INFORMATION_SCHEMA.ENGINES
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WHERE engine = 'innodb'
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AND support IN ('YES', 'DEFAULT', 'ENABLED');
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--let $ibp=--innodb-log-group-home-dir=$bugdir --innodb-data-home-dir=$bugdir
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--let $ibp=$ibp --innodb-undo-tablespaces=0
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--let $ibp=$ibp --innodb-data-file-path=ibdata1:1M;ibdata2:1M:autoextend
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--let $restart_parameters= $ibp
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--source include/restart_mysqld.inc
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eval $check_no_innodb;
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--let SEARCH_PATTERN= \[ERROR\] InnoDB: Cannot create doublewrite buffer
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--source include/search_pattern_in_file.inc
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--let $restart_parameters=
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--source include/restart_mysqld.inc
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--remove_file $bugdir/ibdata1
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--remove_file $bugdir/ibdata2
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--remove_file $bugdir/ib_logfile0
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--rmdir $bugdir
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