diff options
| author | Monty <monty@mariadb.org> | 2018-11-06 17:05:24 +0200 |
|---|---|---|
| committer | Monty <monty@mariadb.org> | 2018-12-09 22:12:27 +0200 |
| commit | 965311ee8b2bf65e772a121a83fc35b4dd44de5e (patch) | |
| tree | 8f1273b19510d912f6ef9ba5b4216ceb93ad9b3b /sql/handler.h | |
| parent | f386b70beb5742c4b0e3afe8b34cb0897537e375 (diff) | |
| download | mariadb-git-965311ee8b2bf65e772a121a83fc35b4dd44de5e.tar.gz | |
Added new MDL_BACKUP locks for all backup stages
Part of MDEV-5336 Implement LOCK FOR BACKUP
- Added new locks to MDL_BACKUP for all stages of backup locks and
a new MDL lock needed for backup stages.
- Renamed MDL_BACKUP_STMT to MDL_BACKUP_DDL
- flush_tables() takes a new parameter that decides what should be flushed.
- InnoDB, Aria (transactional tables with checksums), Blackhole, Federated
and Federatedx tables are marked to be safe for online backup. We are
using MDL_BACKUP_TRANS_DML instead of MDL_BACKUP_DML locks for these
which allows any DML's to proceed for these tables during the whole
backup process until BACKUP STAGE COMMIT which will block the final
commit.
Diffstat (limited to 'sql/handler.h')
| -rw-r--r-- | sql/handler.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sql/handler.h b/sql/handler.h index df31ae4898a..a0739d75aaf 100644 --- a/sql/handler.h +++ b/sql/handler.h @@ -316,6 +316,9 @@ enum enum_alter_inplace_result { */ #define HA_SLOW_RND_POS (1ULL << 55) +/* Safe for online backup */ +#define HA_CAN_ONLINE_BACKUPS (1ULL << 56) + /* bits in index_flags(index_number) for what you can do with index */ #define HA_READ_NEXT 1 /* TODO really use this flag */ #define HA_READ_PREV 2 /* supports ::index_prev */ |