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#
# Bug #17335427 INNODB CAN NOT USE THE DOUBLEWRITE BUFFER PROPERLY
# Bug #18144349 INNODB CANNOT USE THE DOUBLEWRITE BUFFER FOR THE FIRST
# PAGE OF SYSTEM TABLESPACE
#
SET GLOBAL innodb_fast_shutdown = 0;
# restart
show variables like 'innodb_doublewrite';
Variable_name Value
innodb_doublewrite ON
show variables like 'innodb_fil_make_page_dirty_debug';
Variable_name Value
innodb_fil_make_page_dirty_debug 0
show variables like 'innodb_saved_page_number_debug';
Variable_name Value
innodb_saved_page_number_debug 0
connect stop_purge,localhost,root,,;
START TRANSACTION WITH CONSISTENT SNAPSHOT;
connection default;
create table t1 (f1 int primary key, f2 blob) engine=innodb stats_persistent=0;
start transaction;
insert into t1 values(1, repeat('#',12));
insert into t1 values(2, repeat('+',12));
insert into t1 values(3, repeat('/',12));
insert into t1 values(4, repeat('-',12));
insert into t1 values(5, repeat('.',12));
commit work;
# ---------------------------------------------------------------
# Test Begin: Test if recovery works if first page of user
# tablespace is full of zeroes.
select space into @space_id from information_schema.innodb_sys_tables
where name = 'test/t1';
begin;
insert into t1 values (6, repeat('%', 12));
# Ensure that dirty pages of table t1 are flushed.
set global innodb_buf_flush_list_now = 1;
# Make the first page dirty for table t1
set global innodb_saved_page_number_debug = 0;
set global innodb_fil_make_page_dirty_debug = @space_id;
# Ensure that dirty pages of table t1 are flushed.
set global innodb_buf_flush_list_now = 1;
# Kill the server
disconnect stop_purge;
# Make the first page (page_no=0) of the user tablespace
# full of zeroes.
#
# MDEV-11623: Use old FSP_SPACE_FLAGS in the doublewrite buffer.
# restart
check table t1;
Table Op Msg_type Msg_text
test.t1 check status OK
select f1, f2 from t1;
f1 f2
1 ############
2 ++++++++++++
3 ////////////
4 ------------
5 ............
# Test End
# ---------------------------------------------------------------
# Test Begin: Test if recovery works if first page of user
# tablespace is corrupted.
select space into @space_id from information_schema.innodb_sys_tables
where name = 'test/t1';
# Ensure that dirty pages of table t1 is flushed.
flush tables t1 for export;
unlock tables;
set global innodb_log_checkpoint_now=1;
begin;
insert into t1 values (6, repeat('%', 12));
# Make the first page dirty for table t1
set global innodb_saved_page_number_debug = 0;
set global innodb_fil_make_page_dirty_debug = @space_id;
# Ensure that dirty pages of table t1 are flushed.
set global innodb_buf_flush_list_now = 1;
# Kill the server
# Corrupt the first page (page_no=0) of the user tablespace.
# restart
check table t1;
Table Op Msg_type Msg_text
test.t1 check status OK
select f1, f2 from t1;
f1 f2
1 ############
2 ++++++++++++
3 ////////////
4 ------------
5 ............
# Test End
# ---------------------------------------------------------------
# Test Begin: Test if recovery works if 2nd page of user
# tablespace is full of zeroes.
select space into @space_id from information_schema.innodb_sys_tables
where name = 'test/t1';
# Ensure that dirty pages of table t1 is flushed.
flush tables t1 for export;
unlock tables;
begin;
insert into t1 values (6, repeat('%', 400));
# Make the 2nd page dirty for table t1
set global innodb_saved_page_number_debug = 1;
set global innodb_fil_make_page_dirty_debug = @space_id;
# Ensure that dirty pages of table t1 are flushed.
set global innodb_buf_flush_list_now = 1;
# Kill the server
# Make the 2nd page (page_no=1) of the tablespace all zeroes.
# restart
check table t1;
Table Op Msg_type Msg_text
test.t1 check status OK
select f1, f2 from t1;
f1 f2
1 ############
2 ++++++++++++
3 ////////////
4 ------------
5 ............
# Test End
# ---------------------------------------------------------------
# Test Begin: Test if recovery works if 2nd page of user
# tablespace is corrupted.
select space into @space_id from information_schema.innodb_sys_tables
where name = 'test/t1';
# Ensure that dirty pages of table t1 is flushed.
flush tables t1 for export;
unlock tables;
begin;
insert into t1 values (6, repeat('%', 400));
# Make the 2nd page dirty for table t1
set global innodb_saved_page_number_debug = 1;
set global innodb_fil_make_page_dirty_debug = @space_id;
# Ensure that the dirty pages of table t1 are flushed.
set global innodb_buf_flush_list_now = 1;
# Kill the server
# Corrupt the 2nd page (page_no=1) of the user tablespace.
# restart
check table t1;
Table Op Msg_type Msg_text
test.t1 check status OK
select f1, f2 from t1;
f1 f2
1 ############
2 ++++++++++++
3 ////////////
4 ------------
5 ............
# Test End
# ---------------------------------------------------------------
# Test Begin: Test if recovery works if first page of
# system tablespace is full of zeroes.
begin;
insert into t1 values (6, repeat('%', 400));
# Ensure that all dirty pages in the system are flushed.
set global innodb_buf_flush_list_now = 1;
# Make the first page dirty for system tablespace
set global innodb_saved_page_number_debug = 0;
set global innodb_fil_make_page_dirty_debug = 0;
# Ensure that the dirty page of system tablespace is also flushed.
set global innodb_buf_flush_list_now = 1;
# Kill the server
# Make the first page (page_no=0) of the system tablespace
# all zeroes.
# restart
check table t1;
Table Op Msg_type Msg_text
test.t1 check status OK
select f1, f2 from t1;
f1 f2
1 ############
2 ++++++++++++
3 ////////////
4 ------------
5 ............
# Test End
# ---------------------------------------------------------------
# Test Begin: Test if recovery works if first page of
# system tablespace is corrupted.
begin;
insert into t1 values (6, repeat('%', 400));
# Ensure that all dirty pages in the system are flushed.
set global innodb_buf_flush_list_now = 1;
# Make the first page dirty for system tablespace
set global innodb_saved_page_number_debug = 0;
set global innodb_fil_make_page_dirty_debug = 0;
# Ensure that the dirty page of system tablespace is also flushed.
set global innodb_buf_flush_list_now = 1;
# Kill the server
# Corrupt the first page (page_no=0) of the system tablespace.
# restart
check table t1;
Table Op Msg_type Msg_text
test.t1 check status OK
select f1, f2 from t1;
f1 f2
1 ############
2 ++++++++++++
3 ////////////
4 ------------
5 ............
# Test End
# ---------------------------------------------------------------
# Test Begin: Test if recovery works if 2nd page of
# system tablespace is full of zeroes.
begin;
insert into t1 values (6, repeat('%', 400));
# Ensure that all dirty pages in the system are flushed.
set global innodb_buf_flush_list_now = 1;
# Make the second page dirty for system tablespace
set global innodb_saved_page_number_debug = 1;
set global innodb_fil_make_page_dirty_debug = 0;
# Ensure that the dirty page of system tablespace is also flushed.
set global innodb_buf_flush_list_now = 1;
# Kill the server
# Make the 2nd page (page_no=1) of the system tablespace
# all zeroes.
# restart
check table t1;
Table Op Msg_type Msg_text
test.t1 check status OK
select f1, f2 from t1;
f1 f2
1 ############
2 ++++++++++++
3 ////////////
4 ------------
5 ............
# Test End
# ---------------------------------------------------------------
# Test Begin: Test if recovery works if 2nd page of
# system tablespace is corrupted.
begin;
insert into t1 values (6, repeat('%', 400));
# Ensure that all dirty pages in the system are flushed.
set global innodb_buf_flush_list_now = 1;
# Make the second page dirty for system tablespace
set global innodb_saved_page_number_debug = 1;
set global innodb_fil_make_page_dirty_debug = 0;
# Ensure that the dirty page of system tablespace is also flushed.
set global innodb_buf_flush_list_now = 1;
# Kill the server
# Make the 2nd page (page_no=1) of the system tablespace
# all zeroes.
# restart
check table t1;
Table Op Msg_type Msg_text
test.t1 check status OK
FOUND 1 /InnoDB: .*test.t1\.ibd/ in mysqld.1.err
select f1, f2 from t1;
f1 f2
1 ############
2 ++++++++++++
3 ////////////
4 ------------
5 ............
drop table t1;
#
# MDEV-12600 crash during install_db with innodb_page_size=32K
# and ibdata1=3M
#
# restart: --innodb-log-group-home-dir=MYSQLTEST_VARDIR/tmp/doublewrite --innodb-data-home-dir=MYSQLTEST_VARDIR/tmp/doublewrite --innodb-data-file-path=ibdata1:1M;ibdata2:1M:autoextend
SELECT * FROM INFORMATION_SCHEMA.ENGINES
WHERE engine = 'innodb'
AND support IN ('YES', 'DEFAULT', 'ENABLED');
ENGINE SUPPORT COMMENT TRANSACTIONS XA SAVEPOINTS
FOUND 1 /\[ERROR\] InnoDB: Cannot create doublewrite buffer/ in mysqld.1.err
# restart
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