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let consistent_scn be the biggest max_tablet_checkpoint_scn_ of all the ls and the cur gts.

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This commit is contained in:
hamstersox
2023-06-26 04:48:02 +00:00
committed by ob-robot
parent 95f5c8fa50
commit 799865e791
4 changed files with 19 additions and 10 deletions
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25
src/rootserver/backup/ob_backup_data_set_task_mgr.cpp
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@ -494,14 +494,6 @@ int ObBackupSetTaskMgr::backup_user_meta_()
ROOTSERVICE_EVENT_ADD("backup_data", "before_backup_data");
share::SCN consistent_scn;
bool need_change_meta_turn = false;
// let consistent_scn be the biggest max_tablet_checkpoint_scn_ of all the ls.
consistent_scn.set_min();
ARRAY_FOREACH(ls_task, i) {
const ObBackupLSTaskAttr &task = ls_task.at(i);
consistent_scn = MAX(consistent_scn, task.max_tablet_checkpoint_scn_);
}
if (OB_FAIL(check_need_change_meta_turn_(ls_task, need_change_meta_turn))) {
LOG_WARN("failed to check need change meta turn", K(ret), K(ls_task));
} else if (need_change_meta_turn) {
@ -509,6 +501,8 @@ int ObBackupSetTaskMgr::backup_user_meta_()
if (OB_FAIL(change_meta_turn_(sys_ls_task))) {
LOG_WARN("failed to change meta turn", K(ret));
}
} else if (OB_FAIL(calc_consistent_scn_(ls_task, consistent_scn))) {
LOG_WARN("failed to calc consistent scn", K(ret), K(ls_task));
} else if (OB_FAIL(merge_ls_meta_infos_(ls_task))) {
LOG_WARN("fail to merge ls meta infos", K(ret), K(ls_task));
} else if (OB_FAIL(merge_tablet_to_ls_info_(consistent_scn, ls_task))) {
@ -544,6 +538,21 @@ int ObBackupSetTaskMgr::backup_user_meta_()
return ret;
}
int ObBackupSetTaskMgr::calc_consistent_scn_(ObIArray<share::ObBackupLSTaskAttr> &ls_tasks, share::SCN &consistent_scn)
{
int ret = OB_SUCCESS;
consistent_scn.set_min();
// let consistent_scn be the biggest max_tablet_checkpoint_scn_ of all the ls and the cur gts.
if (OB_FAIL(ObBackupDataScheduler::get_backup_scn(*sql_proxy_, job_attr_->tenant_id_, true, consistent_scn))) {
LOG_WARN("failed to get backup scn", K(ret), "tenant_id", job_attr_->tenant_id_);
}
ARRAY_FOREACH(ls_tasks, i) {
const ObBackupLSTaskAttr &task = ls_tasks.at(i);
consistent_scn = MAX(consistent_scn, task.max_tablet_checkpoint_scn_);
}
return ret;
}
int ObBackupSetTaskMgr::check_need_change_meta_turn_(ObIArray<share::ObBackupLSTaskAttr> &ls_tasks, bool &need_change_turn)
{
// if deleting ls when backup user meta, the deleted ls may not has ls meta backup.