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https://github.com/MariaDB/server.git
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80c24c8327
Fixes a lot of issues in current backup code: - Galera should now be supported (needs testing) - Enables ddl logging (so we can use it in the future) - Flushes binary logs (we still must add code to copy them) - mdl locks are consistent between maria-backup and backup command - startup backup code for InnoDB moved to innodb_prepare_for_backup() called by prepare_for_backup hton handler. - Give errors if backup command is done under a transaction, global read lock or lock tables. - Retry for MDL_BACKUP_WAIT_DDL (needed for backup.backup_ddl_concurrent_verify) - Removed wrong log locks in Aria Things to do (in addition to the things in my earlier review) : - At backup_stage stage start, force rotate of aria log files. This allows us to copy all old logs without any locks - Copy all transactional tables and old aria logs under BACKUP_START (as - maria-backup does) - Copy the active aria log file under block commit (Only one file as aria log rotation is disabled while backup is running. - Improve speed of copying aria tables by copy files in up to 1M blocks and run checksum on the blocks and only re-read blocks with - wrong checksum. - Copy non transactional files under BACKUP_PHASE_NO_BEGIN_NON_TRANS. Note that Aria does not support the documented BACKUP_PHASE_NO_DML_NON_TRANS . The BACKUP_PHASE_NO_BEGIN_NON_TRANS state is already blocking changes to non transactional tables
49 lines
1.7 KiB
C
49 lines
1.7 KiB
C
#ifndef BACKUP_INCLUDED
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#define BACKUP_INCLUDED
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/* Copyright (c) 2018, MariaDB Corporation
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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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
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enum backup_stages
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{
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BACKUP_NONE= -1,
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BACKUP_START, BACKUP_FLUSH, BACKUP_WAIT_FOR_FLUSH, BACKUP_LOCK_COMMIT,
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BACKUP_END, BACKUP_FINISHED
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};
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extern TYPELIB backup_stage_names;
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struct backup_log_info {
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LEX_CSTRING query;
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LEX_CUSTRING org_table_id; /* Unique id from frm */
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LEX_CSTRING org_database, org_table;
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LEX_CSTRING org_storage_engine_name;
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LEX_CSTRING new_database, new_table;
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LEX_CSTRING new_storage_engine_name;
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LEX_CUSTRING new_table_id; /* Unique id from frm */
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bool org_partitioned;
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bool new_partitioned;
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};
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void backup_init();
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bool run_backup_stage(THD *thd, backup_stages stage);
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bool backup_end(THD *thd);
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void backup_set_alter_copy_lock(THD *thd, TABLE *altered_table);
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bool backup_reset_alter_copy_lock(THD *thd);
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bool backup_lock(THD *thd, TABLE_LIST *table);
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void backup_unlock(THD *thd);
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void backup_log_ddl(const backup_log_info *info);
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#endif /* BACKUP_INCLUDED */
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