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A suppression was needed for encryption.innodb-bad-key-change
due to the path change.
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The deprecated parameters will be removed:
innodb_defragment
innodb_defragment_n_pages
innodb_defragment_stats_accuracy
innodb_defragment_fill_factor_n_recs
innodb_defragment_fill_factor
innodb_defragment_frequency
The mysql.innodb_index_stats.stat_name values 'n_page_split' and
'n_pages_freed' will lose their special meaning.
The related changes to OPTIMIZE TABLE in InnoDB will be removed as well.
The parameter innodb_optimize_fulltext_only will retain its special
meaning in OPTIMIZE TABLE.
Tested by: Matthias Leich
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The purpose of the change buffer was to reduce random disk access,
which could be useful on rotational storage, but maybe less so on
solid-state storage.
When we wished to
(1) insert a record into a non-unique secondary index,
(2) delete-mark a secondary index record,
(3) delete a secondary index record as part of purge (but not ROLLBACK),
and the B-tree leaf page where the record belongs to is not in the buffer
pool, we inserted a record into the change buffer B-tree, indexed by
the page identifier. When the page was eventually read into the buffer
pool, we looked up the change buffer B-tree for any modifications to the
page, applied these upon the completion of the read operation. This
was called the insert buffer merge.
We remove the change buffer, because it has been the source of
various hard-to-reproduce corruption bugs, including those fixed in
commit 5b9ee8d8193a8c7a8ebdd35eedcadc3ae78e7fc1 and
commit 165564d3c33ae3d677d70644a83afcb744bdbf65 but not limited to them.
A downgrade will fail with a clear message starting with
commit db14eb16f9977453467ec4765f481bb2f71814ba (MDEV-30106).
buf_page_t::state: Merge IBUF_EXIST to UNFIXED and
WRITE_FIX_IBUF to WRITE_FIX.
buf_pool_t::watch[]: Remove.
trx_t: Move isolation_level, check_foreigns, check_unique_secondary,
bulk_insert into the same bit-field. The only purpose of
trx_t::check_unique_secondary is to enable bulk insert into an
empty table. It no longer enables insert buffering for UNIQUE INDEX.
btr_cur_t::thr: Remove. This field was originally needed for change
buffering. Later, its use was extended to cover SPATIAL INDEX.
Much of the time, rtr_info::thr holds this field. When it does not,
we will add parameters to SPATIAL INDEX specific functions.
ibuf_upgrade_needed(): Check if the change buffer needs to be updated.
ibuf_upgrade(): Merge and upgrade the change buffer after all redo log
has been applied. Free any pages consumed by the change buffer, and
zero out the change buffer root page to mark the upgrade completed,
and to prevent a downgrade to an earlier version.
dict_load_tablespaces(): Renamed from
dict_check_tablespaces_and_store_max_id(). This needs to be invoked
before ibuf_upgrade().
btr_cur_open_at_rnd_pos(): Specialize for use in persistent statistics.
The change buffer merge does not need this function anymore.
btr_page_alloc(): Renamed from btr_page_alloc_low(). We no longer
allocate any change buffer pages.
btr_cur_open_at_rnd_pos(): Specialize for use in persistent statistics.
The change buffer merge does not need this function anymore.
row_search_index_entry(), btr_lift_page_up(): Add a parameter thr
for the SPATIAL INDEX case.
rtr_page_split_and_insert(): Specialized from btr_page_split_and_insert().
rtr_root_raise_and_insert(): Specialized from btr_root_raise_and_insert().
Note: The support for upgrading from the MySQL 3.23 or MySQL 4.0
change buffer format that predates the MySQL 4.1 introduction of
the option innodb_file_per_table was removed in MySQL 5.6.5
as part of mysql/mysql-server@69b6241a79876ae98bb0c9dce7c8d8799d6ad273
and MariaDB 10.0.11 as part of 1d0f70c2f894b27e98773a282871d32802f67964.
In the tests innodb.log_upgrade and innodb.log_corruption, we create
valid (upgraded) change buffer pages.
Tested by: Matthias Leich
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Before commit 6112853cdab2770e92f9cfefdfef9c0a14b71cb7 in 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 commit b5852ffbeebc3000982988383daeefb0549e058a.
Starting with commit baf276e6d4a44fe7cdf3b435c0153da0a42af2b6
(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
commit 86dc7b4d4cfe15a2d37f8b5f60c4fce5dba9491d (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.
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undo tablespaces
- Information_schema.innodb_tablespaces_encryption should print
undo tablespace name as innodb_undo001, innodb_undo002 and soon.
- Encryption test should include undo tablespaces count when
the tests are waiting for the condition to check whether all
tables are encrypted or decrypted.
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fil_name_process(): If fil_ibd_load() returns FIL_LOAD_INVALID,
display the file name and the tablespace identifier.
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The log overwrite warnings are not being reliably emitted in all
debug-instrumented environments. It may be related to the
scheduling of some InnoDB internal activity, such as the purging
of committed transaction history.
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The InnoDB write-ahead log ib_logfile0 is of fixed size,
specified by innodb_log_file_size. If the tail of the log
manages to overwrite the head (latest checkpoint) of the log,
crash recovery will be broken.
Let us clarify the messages about this, including adding
a message on the completion of a log checkpoint that notes
that the dangerous situation is over.
To reproduce the dangerous scenario, we will introduce the
debug injection label ib_log_checkpoint_avoid_hard, which will
avoid log checkpoints even harder than the previous
ib_log_checkpoint_avoid.
log_t::overwrite_warned: The first known dangerous log sequence number.
Set in log_close() and cleared in log_write_checkpoint_info(),
which will output a "Crash recovery was broken" message.
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To prevent ASAN heap-use-after-poison in the MDEV-16549 part of
./mtr --repeat=6 main.derived
the initialization of Name_resolution_context was cleaned up.
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Add a test related to the Encrypted Key File by following instructions in kb example
https://mariadb.com/kb/en/file-key-management-encryption-plugin/#creating-the-key-file
Reviewed by Daniel Black (with minor formatting and re-org of duplicate
close(f) calls).
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This reverts commit cee7175b79a22c29a82ef328aba208f90afcea86.
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In commit 28325b08633372cc343dfcbc41fe252020cf6e6e
a compile-time option was introduced to disable the macros
DBUG_ENTER and DBUG_RETURN or DBUG_VOID_RETURN.
The parameter name WITH_DBUG_TRACE would hint that it also
covers DBUG_PRINT statements. Let us do that: WITH_DBUG_TRACE=OFF
shall disable DBUG_PRINT() as well.
A few InnoDB recovery tests used to check that some output from
DBUG_PRINT("ib_log", ...) is present. We can live without those checks.
Reviewed by: Vladislav Vaintroub
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recv_sys_t::free_corrupted_page(): Identify the corrupted page in
an error or warning message.
buf_page_free(): Just in case, register the page as modified.
This should already have been done in mtr_t::free() as part of
fseg_free_page_low().
mtr_t::memo_push(): Simplify a condition, so that when invoked
with MTR_MEMO_PAGE_X_MODIFY, we will do the right thing.
fseg_free_page_low(): Remove an accidentally added return statement
that prevented mtr_t::free() from being called. This fixes a regression
that was introduced in
commit 0b47c126e31cddda1e94588799599e138400bcf8 (MDEV-13542).
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A message used to say "failed to read or decrypt"
but the "or decrypt" part was removed in
commit 0b47c126e31cddda1e94588799599e138400bcf8
without adjusting rarely needed error message suppressions in some
encryption tests.
Let us improve the error message so that it mentions the file name,
and adjust all error message suppressions in tests.
Thanks to Oleksandr Byelkin for noticing one test failure.
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unable to restore dump file.
- InnoDB bulk insert fails to use encryption buffer for encrypting
the temporary log file. Declare the m_crypt_block, m_crypt_pfx in
row_merge_bulk_t to be used for encrypting the temporary file.
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