diff options
Diffstat (limited to 'extra/mariabackup/backup_copy.cc')
| -rw-r--r-- | extra/mariabackup/backup_copy.cc | 49 |
1 files changed, 48 insertions, 1 deletions
diff --git a/extra/mariabackup/backup_copy.cc b/extra/mariabackup/backup_copy.cc index 07c6798a362..4833b8d0975 100644 --- a/extra/mariabackup/backup_copy.cc +++ b/extra/mariabackup/backup_copy.cc @@ -58,6 +58,9 @@ Street, Fifth Floor, Boston, MA 02110-1335 USA #include "backup_debug.h" #include "backup_mysql.h" #include <btr0btr.h> +#ifdef _WIN32 +#include <direct.h> /* rmdir */ +#endif #ifdef _WIN32 #include <aclapi.h> @@ -1562,7 +1565,49 @@ bool backup_finish() return(true); } -bool + +/* + Drop all empty database directories in the base backup + that do not exists in the icremental backup. + + This effectively re-plays all DROP DATABASE statements happened + in between base backup and incremental backup creation time. + + Note, only checking if base_dir/db/ is empty is not enough, + because inc_dir/db/db.opt might have been dropped for some reasons, + which may also result into empty base_dir/db/. + + Only the fact that at the same time: + - base_dir/db/ exists + - inc_dir/db/ does not exist + means that DROP DATABASE happened. +*/ +static void +ibx_incremental_drop_databases(const char *base_dir, + const char *inc_dir) +{ + datadir_node_t node; + datadir_node_init(&node); + datadir_iter_t *it = datadir_iter_new(base_dir); + + while (datadir_iter_next(it, &node)) { + if (node.is_empty_dir) { + char path[FN_REFLEN]; + snprintf(path, sizeof(path), "%s/%s", + inc_dir, node.filepath_rel); + if (!directory_exists(path, false)) { + msg("Removing %s", node.filepath); + rmdir(node.filepath); + } + } + + } + datadir_iter_free(it); + datadir_node_free(&node); +} + + +static bool ibx_copy_incremental_over_full() { const char *ext_list[] = {"frm", "isl", "MYD", "MYI", "MAD", "MAI", @@ -1645,6 +1690,8 @@ ibx_copy_incremental_over_full() } copy_or_move_dir(path, ROCKSDB_BACKUP_DIR, true, true); } + ibx_incremental_drop_databases(xtrabackup_target_dir, + xtrabackup_incremental_dir); } |