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[CP] fix backup ls meta and tablet list report -6004 issue

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This commit is contained in:
oceanoverflow
2023-09-18 02:40:09 +00:00
committed by ob-robot
parent b505b83062
commit 8036cece48
2 changed files with 20 additions and 14 deletions
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24
src/storage/ls/ob_ls_tablet_service.cpp
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@ -6069,9 +6069,11 @@ int ObLSTabletService::ha_scan_all_tablets(const HandleTabletMetaFunc &handle_ta
ObTablet *tablet = nullptr;
obrpc::ObCopyTabletInfo tablet_info;
ObTabletCreateDeleteMdsUserData user_data;
bool committed_flag = false;
while (OB_SUCC(ret)) {
tablet_info.reset();
committed_flag = false;
if (OB_FAIL(iterator.get_next_tablet(tablet_handle))) {
if (OB_ITER_END == ret) {
ret = OB_SUCCESS;
@ -6082,13 +6084,23 @@ int ObLSTabletService::ha_scan_all_tablets(const HandleTabletMetaFunc &handle_ta
} else if (OB_ISNULL(tablet = tablet_handle.get_obj())) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("tablet is nullptr", K(ret), K(tablet_handle));
} else if (OB_FAIL(tablet->ObITabletMdsInterface::get_tablet_status(
share::SCN::max_scn(), user_data, ObTabletCommon::DEFAULT_GET_TABLET_NO_WAIT))) {
} else if (OB_FAIL(tablet->ObITabletMdsInterface::get_latest_tablet_status(user_data, committed_flag))) {
LOG_WARN("failed to get latest tablet status", K(ret), KPC(tablet));
} else if (!committed_flag && ObTabletStatus::TRANSFER_IN == user_data.tablet_status_) {
//TODO(muwei.ym) CAN NOT USE this condition when MDS supports uncommitted transaction
LOG_WARN("failed to get tx data", K(ret), KPC(tablet));
if (OB_EMPTY_RESULT == ret) {
ret = OB_SUCCESS;
}
// why we should skip uncommited transfer in tablet, because if we backup the uncommited transfer in tablet
// but the final result of the uncommited transfer in tablet is aborted, which means the tablet has no MDS Table,
// and the restore process will create this tablet nontheless, however this aborted tablet should be GC-ed at the end,
// because the aborted tablet has no MDS Table, the tablet can not be GC-ed correctly, resulting in the tablet dangling
// for details, see issue-51990749
// we can skip backup uncommited transfer in tablets because we backup ls meta first
// if the start transfer in transaction is not commited, the clog_checkpoint_scn recorded
// in ls meta will not be advanced, so that even though we skip backup uncommited
// transfer in tablet, we can still restore transfer in tablet by replaying clog
LOG_WARN("tablet is transfer in but not commited, skip", K(tablet_handle), K(user_data));
continue;
} else if (OB_FAIL(tablet->build_migration_tablet_param(tablet_info.param_))) {
LOG_WARN("failed to build migration tablet param", K(ret));
} else if (OB_FAIL(tablet->get_ha_sstable_size(tablet_info.data_size_))) {