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When we log UNDO_KEY_INSERT for an auto_inc key, we update state.auto_increment (not anymore at the end of maria_write() except if this is a non-transactional table). When Recovery sees UNDO_KEY_INSERT in the REDO phase, it reads the auto_inc value from it and updates state.auto_increment. mysql-test/r/maria-recovery.result: Without the code fix, there would be in CHECK TABLE: "Auto-increment value: 0 is smaller than max used value: 3" and no AUTO_INCREMENT= clause in SHOW CREATE TABLE. mysql-test/t/maria-recovery.test: Test of recovery of state.auto_increment: from an old table, does the replaying of the log set state.auto_increment to what it should be. storage/maria/ma_check.c: new way of calling ma_retrieve_auto_increment(): pass key storage/maria/ma_key.c: ma_retrieve_auto_increment() now operates directly with a pointer to the key and not on the record. storage/maria/ma_key_recover.c: dedicated write_hook_for_undo_key_insert(): sets state.auto_increment under log's mutex. storage/maria/ma_key_recover.h: Dedicated hook for UNDO_KEY_INSERT, to set state.auto_increment. Such hook needs a new member st_msg_write_hook_for_undo_key::auto_increment, which contains the auto_increment value inserted. storage/maria/ma_loghandler.c: UNDO_KEY_INSERT gets a dedicated write_hook, to set auto_increment. storage/maria/ma_recovery.c: When in the REDO phase we see UNDO_KEY_INSERT: if the state is older than this record, and the key is the auto_increment one, read the key's value from the log record and update state.auto_increment. storage/maria/ma_test_all.sh: use $maria_path to be able to run from /dev/shm (faster) storage/maria/ma_update.c: bool is more of C++, using my_bool. If table is transactional, state.auto_increment is already updated in write_hook_for_undo_key_insert(). storage/maria/ma_write.c: If table is transactional, state.auto_increment is not updated at the end of maria_write() but rather in write_hook_for_undo_key_insert() (under log's mutex, so that a concurrent checkpoint does not read state.auto_increment while it is changing - corrupted). _ma_ck_write_btree_with_log() extracts the auto_increment value from the key, puts it into msg.auto_increment, and this is passed to write_hook_for_undo_key_insert(). storage/maria/maria_def.h: change of prototype of ma_retrieve_auto_increment() storage/maria/maria_read_log.c: use default log file size. Use separate page caches for table and logs (needed if maria_block_size!=TRANSLOG_PAGE_SIZE).
103 lines
4 KiB
C
103 lines
4 KiB
C
/* Copyright (C) 2007 Michael Widenius
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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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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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/*
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When we have finished the write/update/delete of a row, we have cleanups to
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do. For now it is signalling to Checkpoint that all dirtied pages have
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their rec_lsn set and page LSN set (_ma_unpin_all_pages() has been called),
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and that bitmap pages are correct (_ma_bitmap_release_unused() has been
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called).
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*/
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/* Struct for clr_end */
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struct st_msg_to_write_hook_for_clr_end
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{
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LSN previous_undo_lsn;
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enum translog_record_type undone_record_type;
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ha_checksum checksum_delta;
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void *extra_msg;
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};
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struct st_msg_to_write_hook_for_undo_key
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{
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my_off_t *root;
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my_off_t value;
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uint keynr;
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ulonglong auto_increment;
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};
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/* Function definitions for some redo functions */
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my_bool _ma_write_clr(MARIA_HA *info, LSN undo_lsn,
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enum translog_record_type undo_type,
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my_bool store_checksum, ha_checksum checksum,
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LSN *res_lsn, void *extra_msg);
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my_bool write_hook_for_clr_end(enum translog_record_type type,
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TRN *trn, MARIA_HA *tbl_info, LSN *lsn,
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void *hook_arg);
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extern my_bool write_hook_for_undo_key(enum translog_record_type type,
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TRN *trn, MARIA_HA *tbl_info,
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LSN *lsn, void *hook_arg);
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extern my_bool write_hook_for_undo_key_insert(enum translog_record_type type,
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TRN *trn, MARIA_HA *tbl_info,
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LSN *lsn, void *hook_arg);
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void _ma_unpin_all_pages(MARIA_HA *info, LSN undo_lsn);
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my_bool _ma_log_prefix(MARIA_HA *info, my_off_t page,
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uchar *buff, uint changed_length,
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int move_length);
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my_bool _ma_log_suffix(MARIA_HA *info, my_off_t page,
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uchar *buff, uint org_length,
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uint new_length);
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my_bool _ma_log_add(MARIA_HA *info, my_off_t page, uchar *buff,
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uint buff_length, uchar *key_pos,
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uint changed_length, int move_length,
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my_bool handle_overflow);
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uint _ma_apply_redo_index_new_page(MARIA_HA *info, LSN lsn,
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const uchar *header, uint length);
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uint _ma_apply_redo_index_free_page(MARIA_HA *info, LSN lsn,
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const uchar *header);
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uint _ma_apply_redo_index(MARIA_HA *info,
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LSN lsn, const uchar *header, uint length);
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my_bool _ma_apply_undo_key_insert(MARIA_HA *info, LSN undo_lsn,
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const uchar *header, uint length);
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my_bool _ma_apply_undo_key_delete(MARIA_HA *info, LSN undo_lsn,
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const uchar *header, uint length);
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static inline void _ma_finalize_row(MARIA_HA *info)
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{
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info->trn->rec_lsn= LSN_IMPOSSIBLE;
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}
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/* unpinning is often the last operation before finalizing */
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static inline void _ma_unpin_all_pages_and_finalize_row(MARIA_HA *info,
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LSN undo_lsn)
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{
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_ma_unpin_all_pages(info, undo_lsn);
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_ma_finalize_row(info);
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}
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extern my_bool _ma_lock_key_del(MARIA_HA *info, my_bool insert_at_end);
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extern void _ma_unlock_key_del(MARIA_HA *info);
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static inline void _ma_fast_unlock_key_del(MARIA_HA *info)
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{
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if (info->used_key_del)
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_ma_unlock_key_del(info);
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}
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