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MDEV-19747: Deprecate and ignore innodb_log_optimize_ddl

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During native table rebuild or index creation, InnoDB used to skip
redo logging and write MLOG_INDEX_LOAD records to inform crash recovery
and Mariabackup of the gaps in redo log. This is fragile and prohibits
some optimizations, such as skipping the doublewrite buffer for
newly (re)initialized pages (MDEV-19738).

row_merge_write_redo(): Remove. We do not write MLOG_INDEX_LOAD
records any more. Instead, we write full redo log.

FlushObserver: Remove.

fseg_free_page_func(): Remove the parameter log. Redo logging
cannot be disabled.

fil_space_t::redo_skipped_count: Remove.

We cannot remove buf_block_t::skip_flush_check, because PageBulk
will temporarily generate invalid B-tree pages in the buffer pool.
This commit is contained in:
Marko Mäkelä 2020-02-11 18:44:26 +02:00
commit fc2f2fa853
46 changed files with 127 additions and 964 deletions
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8
storage/innobase/include/buf0lru.h
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@ -1,7 +1,7 @@
/*****************************************************************************
Copyright (c) 1995, 2016, Oracle and/or its affiliates. All Rights Reserved.
Copyright (c) 2017, 2019, MariaDB Corporation.
Copyright (c) 2017, 2020, MariaDB Corporation.
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
@ -63,11 +63,9 @@ bool buf_LRU_drop_page_hash_for_tablespace(dict_table_t* table)
/** Empty the flush list for all pages belonging to a tablespace.
@param[in] id tablespace identifier
@param[in,out] observer flush observer,
or NULL if nothing is to be written
@param[in] flush whether to write the pages to files
@param[in] first first page to be flushed or evicted */
void buf_LRU_flush_or_remove_pages(ulint id, FlushObserver* observer,
ulint first = 0);
void buf_LRU_flush_or_remove_pages(ulint id, bool flush, ulint first = 0);
#if defined UNIV_DEBUG || defined UNIV_BUF_DEBUG
/********************************************************************//**