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MDEV-8139 Fix Scrubbing

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fil_space_t::freed_ranges: Store ranges of freed page numbers.

fil_space_t::last_freed_lsn: Store the most recent LSN of
freeing a page.

fil_space_t::freed_mutex: Protects freed_ranges, last_freed_lsn.

fil_space_create(): Initialize the freed_range mutex.

fil_space_free_low(): Frees the freed_range mutex.

range_set: Ranges of page numbers.

buf_page_create(): Removes the page from freed_ranges when page
is being reused.

btr_free_root(): Remove the PAGE_INDEX_ID invalidation. Because
btr_free_root() and dict_drop_index_tree() are executed in
the same atomic mini-transaction, there is no need to
invalidate the root page.

buf_release_freed_page(): Split from buf_flush_freed_page().
Skip any I/O

buf_flush_freed_pages(): Get the freed ranges from tablespace and
Write punch-hole or zeroes of the freed ranges.

buf_flush_try_neighbors(): Handles the flushing of freed ranges.

mtr_t::freed_pages: Variable to store the list of freed pages.

mtr_t::add_freed_pages(): To add freed pages.

mtr_t::clear_freed_pages(): To clear the freed pages.

mtr_t::m_freed_in_system_tablespace: Variable to indicate whether page has
been freed in system tablespace.

mtr_t::m_trim_pages: Variable to indicate whether the space has been trimmed.

mtr_t::commit(): Add the freed page and update the last freed lsn
in the tablespace and clear the tablespace freed range if space is
trimmed.

file_name_t::freed_pages: Store the freed pages during recovery.

file_name_t::add_freed_page(), file_name_t::remove_freed_page(): To
add and remove freed page during recovery.

store_freed_or_init_rec(): Store or remove the freed pages while
encountering FREE_PAGE or INIT_PAGE redo log record.

recv_init_crash_recovery_spaces(): Add the freed page encountered
during recovery to respective tablespace.
This commit is contained in:
Thirunarayanan Balathandayuthapani
2020-06-11 22:52:47 +05:30
parent 07d1c8567c
commit c92f7e287f
22 changed files with 510 additions and 719 deletions
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138
mysql-test/suite/encryption/r/innodb_scrub.result
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@@ -1,138 +0,0 @@
create table snapshot_status engine = myisam
select * from information_schema.global_status
where variable_name like 'innodb_scrub%';
# MDEV-8139 Fix scrubbing tests
# FIXME: Add index(b) to each table; ensure that undo logs are scrubbed.
create table delete_3 (
a int auto_increment primary key,
b varchar(256),
c text) engine = innodb row_format=compressed;
delete from delete_3;
create table delete_rollback_delete_3 (
a int auto_increment primary key,
b varchar(256),
c text) engine = innodb row_format=compressed;
begin;
delete from delete_rollback_delete_3;
rollback;
delete from delete_rollback_delete_3;
create table insert_rollback_3 (
a int auto_increment primary key,
b varchar(256),
c text) engine = innodb row_format=compressed;
begin;
rollback;
create table delete_2 (
a int auto_increment primary key,
b varchar(256),
c text) engine = innodb row_format=compact;
delete from delete_2;
create table delete_rollback_delete_2 (
a int auto_increment primary key,
b varchar(256),
c text) engine = innodb row_format=compact;
begin;
delete from delete_rollback_delete_2;
rollback;
delete from delete_rollback_delete_2;
create table insert_rollback_2 (
a int auto_increment primary key,
b varchar(256),
c text) engine = innodb row_format=compact;
begin;
rollback;
create table delete_1 (
a int auto_increment primary key,
b varchar(256),
c text) engine = innodb row_format=redundant;
delete from delete_1;
create table delete_rollback_delete_1 (
a int auto_increment primary key,
b varchar(256),
c text) engine = innodb row_format=redundant;
begin;
delete from delete_rollback_delete_1;
rollback;
delete from delete_rollback_delete_1;
create table insert_rollback_1 (
a int auto_increment primary key,
b varchar(256),
c text) engine = innodb row_format=redundant;
begin;
rollback;
create table delete_0 (
a int auto_increment primary key,
b varchar(256),
c text) engine = innodb row_format=dynamic;
delete from delete_0;
create table delete_rollback_delete_0 (
a int auto_increment primary key,
b varchar(256),
c text) engine = innodb row_format=dynamic;
begin;
delete from delete_rollback_delete_0;
rollback;
delete from delete_rollback_delete_0;
create table insert_rollback_0 (
a int auto_increment primary key,
b varchar(256),
c text) engine = innodb row_format=dynamic;
begin;
rollback;
SET GLOBAL innodb_fast_shutdown=0;
# delete_3.ibd
# delete_rollback_delete_3.ibd
# insert_rollback_3.ibd
# delete_2.ibd
# delete_rollback_delete_2.ibd
# insert_rollback_2.ibd
# delete_1.ibd
# delete_rollback_delete_1.ibd
# insert_rollback_1.ibd
# delete_0.ibd
# delete_rollback_delete_0.ibd
# insert_rollback_0.ibd
check table delete_3, delete_rollback_delete_3, insert_rollback_3;
Table Op Msg_type Msg_text
test.delete_3 check status OK
test.delete_rollback_delete_3 check status OK
test.insert_rollback_3 check status OK
drop table delete_3, delete_rollback_delete_3, insert_rollback_3;
check table delete_2, delete_rollback_delete_2, insert_rollback_2;
Table Op Msg_type Msg_text
test.delete_2 check status OK
test.delete_rollback_delete_2 check status OK
test.insert_rollback_2 check status OK
drop table delete_2, delete_rollback_delete_2, insert_rollback_2;
check table delete_1, delete_rollback_delete_1, insert_rollback_1;
Table Op Msg_type Msg_text
test.delete_1 check status OK
test.delete_rollback_delete_1 check status OK
test.insert_rollback_1 check status OK
drop table delete_1, delete_rollback_delete_1, insert_rollback_1;
check table delete_0, delete_rollback_delete_0, insert_rollback_0;
Table Op Msg_type Msg_text
test.delete_0 check status OK
test.delete_rollback_delete_0 check status OK
test.insert_rollback_0 check status OK
drop table delete_0, delete_rollback_delete_0, insert_rollback_0;
show variables like 'innodb_%scrub_data%';
Variable_name Value
innodb_background_scrub_data_check_interval 3600
innodb_background_scrub_data_compressed OFF
innodb_background_scrub_data_interval 604800
innodb_background_scrub_data_uncompressed OFF
innodb_immediate_scrub_data_uncompressed ON
# verify that this test have not caused any background scrubbing
select ss.variable_name, gs.variable_value - ss.variable_value as variable_value
from snapshot_status ss,
information_schema.global_status gs
where ss.variable_name = gs.variable_name;
variable_name variable_value
INNODB_SCRUB_BACKGROUND_PAGE_REORGANIZATIONS 0
INNODB_SCRUB_BACKGROUND_PAGE_SPLITS 0
INNODB_SCRUB_BACKGROUND_PAGE_SPLIT_FAILURES_MISSING_INDEX 0
INNODB_SCRUB_BACKGROUND_PAGE_SPLIT_FAILURES_OUT_OF_FILESPACE 0
INNODB_SCRUB_BACKGROUND_PAGE_SPLIT_FAILURES_UNDERFLOW 0
INNODB_SCRUB_BACKGROUND_PAGE_SPLIT_FAILURES_UNKNOWN 0
drop table snapshot_status;

160
mysql-test/suite/encryption/r/innodb_scrub_background.result
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@@ -1,160 +0,0 @@
#
# immediate scrubbing is off
# background scrubbing is on
#
show variables like 'innodb_%scrub_data%';
Variable_name Value
innodb_background_scrub_data_check_interval 3600
innodb_background_scrub_data_compressed ON
innodb_background_scrub_data_interval 604800
innodb_background_scrub_data_uncompressed ON
innodb_immediate_scrub_data_uncompressed OFF
# make sure spaces are checked quickly
SET GLOBAL innodb_background_scrub_data_check_interval=1;
create table delete_3 (
a int auto_increment primary key,
b varchar(256),
c text,
index(b)) engine = innodb row_format=compressed;
# Populate table with rows
delete from delete_3;
create table delete_rollback_delete_3 (
a int auto_increment primary key,
b varchar(256),
c text,
index(b)) engine = innodb row_format=compressed;
# Populate table with rows
begin;
delete from delete_rollback_delete_3;
rollback;
delete from delete_rollback_delete_3;
create table insert_rollback_3 (
a int auto_increment primary key,
b varchar(256),
c text,
index(b)) engine = innodb row_format=compressed;
# Populate table with rows
begin;
rollback;
create table delete_2 (
a int auto_increment primary key,
b varchar(256),
c text,
index(b)) engine = innodb row_format=compact;
# Populate table with rows
delete from delete_2;
create table delete_rollback_delete_2 (
a int auto_increment primary key,
b varchar(256),
c text,
index(b)) engine = innodb row_format=compact;
# Populate table with rows
begin;
delete from delete_rollback_delete_2;
rollback;
delete from delete_rollback_delete_2;
create table insert_rollback_2 (
a int auto_increment primary key,
b varchar(256),
c text,
index(b)) engine = innodb row_format=compact;
# Populate table with rows
begin;
rollback;
create table delete_1 (
a int auto_increment primary key,
b varchar(256),
c text,
index(b)) engine = innodb row_format=redundant;
# Populate table with rows
delete from delete_1;
create table delete_rollback_delete_1 (
a int auto_increment primary key,
b varchar(256),
c text,
index(b)) engine = innodb row_format=redundant;
# Populate table with rows
begin;
delete from delete_rollback_delete_1;
rollback;
delete from delete_rollback_delete_1;
create table insert_rollback_1 (
a int auto_increment primary key,
b varchar(256),
c text,
index(b)) engine = innodb row_format=redundant;
# Populate table with rows
begin;
rollback;
create table delete_0 (
a int auto_increment primary key,
b varchar(256),
c text,
index(b)) engine = innodb row_format=dynamic;
# Populate table with rows
delete from delete_0;
create table delete_rollback_delete_0 (
a int auto_increment primary key,
b varchar(256),
c text,
index(b)) engine = innodb row_format=dynamic;
# Populate table with rows
begin;
delete from delete_rollback_delete_0;
rollback;
delete from delete_rollback_delete_0;
create table insert_rollback_0 (
a int auto_increment primary key,
b varchar(256),
c text,
index(b)) engine = innodb row_format=dynamic;
# Populate table with rows
begin;
rollback;
# start scrubbing threads
SET GLOBAL innodb_encryption_threads=5;
# Wait max 10 min for scrubbing
SET GLOBAL innodb_fast_shutdown=0;
# delete_3.ibd
# delete_rollback_delete_3.ibd
# insert_rollback_3.ibd
# delete_2.ibd
# delete_rollback_delete_2.ibd
# insert_rollback_2.ibd
# delete_1.ibd
# delete_rollback_delete_1.ibd
# insert_rollback_1.ibd
# delete_0.ibd
# delete_rollback_delete_0.ibd
# insert_rollback_0.ibd
check table delete_3, delete_rollback_delete_3, insert_rollback_3;
Table Op Msg_type Msg_text
test.delete_3 check status OK
test.delete_rollback_delete_3 check status OK
test.insert_rollback_3 check status OK
drop table delete_3, delete_rollback_delete_3, insert_rollback_3;
check table delete_2, delete_rollback_delete_2, insert_rollback_2;
Table Op Msg_type Msg_text
test.delete_2 check status OK
test.delete_rollback_delete_2 check status OK
test.insert_rollback_2 check status OK
drop table delete_2, delete_rollback_delete_2, insert_rollback_2;
check table delete_1, delete_rollback_delete_1, insert_rollback_1;
Table Op Msg_type Msg_text
test.delete_1 check status OK
test.delete_rollback_delete_1 check status OK
test.insert_rollback_1 check status OK
drop table delete_1, delete_rollback_delete_1, insert_rollback_1;
check table delete_0, delete_rollback_delete_0, insert_rollback_0;
Table Op Msg_type Msg_text
test.delete_0 check status OK
test.delete_rollback_delete_0 check status OK
test.insert_rollback_0 check status OK
drop table delete_0, delete_rollback_delete_0, insert_rollback_0;
show variables like 'innodb_%scrub_data%';
Variable_name Value
innodb_background_scrub_data_check_interval 3600
innodb_background_scrub_data_compressed ON
innodb_background_scrub_data_interval 604800
innodb_background_scrub_data_uncompressed ON
innodb_immediate_scrub_data_uncompressed OFF