2013-04-07 14:50:01 +02:00
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/* Copyright (c) 2009, 2010, Oracle and/or its affiliates.
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2021-03-18 11:34:48 +01:00
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Copyright (c) 2012, 2021, MariaDB
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2009-11-02 21:05:42 +01:00
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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2019-05-11 20:29:06 +02:00
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
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2009-11-02 21:05:42 +01:00
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#ifdef _WIN32
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#define SERVICE_VERSION __declspec(dllexport) void *
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#else
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#define SERVICE_VERSION void *
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#endif
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2013-07-13 17:48:06 +02:00
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#define VERSION_debug_sync 0x1000
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#define VERSION_kill_statement 0x1000
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2017-03-06 19:37:48 +01:00
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#define VERSION_base64 0x0100
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#define VERSION_encryption 0x0300
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#define VERSION_encryption_scheme 0x0100
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#define VERSION_logger 0x0100
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2017-04-18 18:37:57 +02:00
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#define VERSION_my_crypt 0x0100
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2017-03-06 19:37:48 +01:00
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#define VERSION_my_md5 0x0100
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2017-04-18 18:37:57 +02:00
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#define VERSION_my_print_error 0x0100
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2017-03-06 19:37:48 +01:00
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#define VERSION_my_sha1 0x0101
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#define VERSION_my_sha2 0x0100
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2013-01-18 19:04:23 +01:00
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#define VERSION_my_snprintf 0x0100
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#define VERSION_progress_report 0x0100
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2017-09-28 12:36:00 +02:00
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#define VERSION_thd_alloc 0x0200
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2013-12-12 16:18:49 +01:00
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#define VERSION_thd_autoinc 0x0100
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2017-07-19 19:47:38 +02:00
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#define VERSION_thd_error_context 0x0200
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2017-03-06 19:37:48 +01:00
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#define VERSION_thd_rnd 0x0100
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2014-12-03 23:51:47 +01:00
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#define VERSION_thd_specifics 0x0100
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2017-03-06 19:37:48 +01:00
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#define VERSION_thd_timezone 0x0100
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#define VERSION_thd_wait 0x0100
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2021-03-19 12:06:31 +01:00
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#define VERSION_wsrep 0x0500
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2018-12-11 22:49:39 +01:00
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#define VERSION_json 0x0100
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MDEV-16678 Prefer MDL to dict_sys.latch for innodb background tasks
This is joint work with Thirunarayanan Balathandayuthapani.
The MDL interface between InnoDB and the rest of the server
(in storage/innobase/dict/dict0dict.cc and in include/)
is my work, while most everything else is Thiru's.
The collection of InnoDB persistent statistics and the
defragmentation were not refactored to use MDL. They will
keep relying on lower-level interlocking with
fil_check_pending_operations().
The purge of transaction history and the background operations on
fulltext indexes will use MDL. We will revert
commit 2c4844c9e76427525e8c39a2d72686085efe89c3
(MDEV-17813) because thanks to MDL, purge cannot conflict
with DDL operations anymore. For a similar reason, we will remove
the MDEV-16222 test case from gcol.innodb_virtual_debug_purge.
Purge is essentially replacing all use of the global dict_sys.latch
with MDL. Purge will skip the undo log records for tables whose names
start with #sql-ib or #sql2. Theoretically, such tables might
be renamed back to visible table names if TRUNCATE fails to
create a new table, or the final rename in ALTER TABLE...ALGORITHM=COPY
fails. In that case, purge could permanently leave some garbage
in the table. Such garbage will be tolerated; the table would not
be considered corrupted.
To avoid repeated MDL releases and acquisitions,
trx_purge_attach_undo_recs() will sort undo log records by table_id,
and purge_node_t will keep the MDL and table handle open for multiple
successive undo log records.
get_purge_table(): A new accessor, used during the purge of
history for indexed virtual columns. This interface should ideally
not exist at all.
thd_mdl_context(): Accessor of THD::mdl_context.
Wrapped in a new thd_mdl_service.
dict_get_db_name_len(): Define inline.
dict_acquire_mdl_shared(): Acquire explicit shared MDL on a table name
if needed.
dict_table_open_on_id(): Return MDL_ticket, if requested.
dict_table_close(): Release MDL ticket, if requested.
dict_fts_index_syncing(), dict_index_t::index_fts_syncing: Remove.
row_drop_table_for_mysql() no longer needs to check these, because
MDL guarantees that a fulltext index sync will not be in progress
while MDL_EXCLUSIVE is protecting a DDL operation.
dict_table_t::parse_name(): Parse the table name for acquiring MDL.
purge_node_t::undo_recs: Change the type to std::list<trx_purge_rec_t*>
(different container, and storing also roll_ptr).
purge_node_t: Add mdl_ticket, last_table_id, purge_thd, mdl_hold_recs
for acquiring MDL and for keeping the table open across multiple
undo log records.
purge_vcol_info_t, row_purge_store_vsec_cur(), row_purge_restore_vsec_cur():
Remove. We will acquire the MDL earlier.
purge_sys_t::heap: Added, for reading undo log records.
fts_sync_during_ddl(): Invoked during ALGORITHM=INPLACE operations
to ensure that fts_sync_table() will not conflict with MDL_EXCLUSIVE.
Uses fts_t::sync_message for bookkeeping.
2019-12-10 14:42:50 +01:00
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#define VERSION_thd_mdl 0x0100
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2024-02-08 09:35:45 +01:00
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#define VERSION_print_check_msg 0x0100
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2022-11-14 20:46:42 +01:00
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#define VERSION_sql_service 0x0102
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2021-08-31 14:09:47 +02:00
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#define VERSION_provider_bzip2 0x0100
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#define VERSION_provider_lz4 0x0100
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#define VERSION_provider_lzma 0x0100
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#define VERSION_provider_lzo 0x0100
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#define VERSION_provider_snappy 0x0100
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