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[SCN REFACTOR] replace flash back snapshot and remove read snapshot session

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This commit is contained in:
wangt1xiuyi
2022-11-28 01:54:50 +00:00
committed by ob-robot
parent c4c13f6296
commit 11485d6a98
268 changed files with 6763 additions and 7737 deletions
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82
src/storage/tablet/ob_tablet_create_delete_helper.cpp
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@ -854,46 +854,48 @@ int ObTabletCreateDeleteHelper::roll_back_remove_tablet(
const ObTabletMapKey key(ls_id, tablet_id);
ObTabletHandle tablet_handle;
// Try figure out if tablet needs to dec memtable ref or not
if (OB_FAIL(get_tablet(key, tablet_handle))) {
if (OB_TABLET_NOT_EXIST == ret) {
// tablet does not exist, do nothing
if (OB_TABLET_NOT_EXIST == ret || OB_ITEM_NOT_SETTED == ret) {
// tablet does not exist or tablet creation failed on half way, do nothing
ret = OB_SUCCESS;
} else {
LOG_WARN("failed to get tablet", K(ret), K(ls_id), K(tablet_id));
}
} else if (trans_flags.for_replay_) {
// for replay, no need to dec ref for memtable
} else {
if (trans_flags.for_replay_) {
// for replay, no need to dec ref for memtable
} else {
ObTablet *tablet = tablet_handle.get_obj();
ObTabletMemtableMgr *memtable_mgr = static_cast<ObTabletMemtableMgr*>(tablet->get_memtable_mgr());
ObSEArray<ObTableHandleV2, MAX_MEMSTORE_CNT> memtable_handle_array;
if (OB_FAIL(memtable_mgr->get_all_memtables(memtable_handle_array))) {
LOG_WARN("failed to get all memtables", K(ret), K(ls_id), K(tablet_id));
} else if (0 == memtable_handle_array.count()) {
// tablet does not have memtable, do nothing
} else if (1 == memtable_handle_array.count()) {
ObMemtable *memtable = nullptr;
ObTabletTxMultiSourceDataUnit tx_data;
if (OB_FAIL(memtable_handle_array.at(0).get_data_memtable(memtable))) {
LOG_WARN("failed to get memtable", K(ret), K(ls_id), K(tablet_id));
} else if (!memtable->has_multi_source_data_unit(MultiSourceDataUnitType::TABLET_TX_DATA)) {
LOG_INFO("memtable does not have msd, do nothing", K(ret), K(ls_id), K(tablet_id));
} else if (OB_FAIL(tablet->get_tx_data(tx_data))) {
LOG_WARN("failed to get tx data", K(ret), K(ls_id), K(tablet_id));
} else if (OB_FAIL(tablet->save_multi_source_data_unit(&tx_data, share::ObScnRange::MAX_TS,
trans_flags.for_replay_, MemtableRefOp::DEC_REF, true/*is_callback*/))) {
LOG_WARN("failed to save msd", K(ret), K(ls_id), K(tablet_id));
}
} else {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("tablet should not have more than one memtable", K(ret), K(ls_id), K(tablet_id),
"memtable_cnt", memtable_handle_array.count());
ObTablet *tablet = tablet_handle.get_obj();
ObTabletMemtableMgr *memtable_mgr = static_cast<ObTabletMemtableMgr*>(tablet->get_memtable_mgr());
ObSEArray<ObTableHandleV2, MAX_MEMSTORE_CNT> memtable_handle_array;
if (OB_FAIL(memtable_mgr->get_all_memtables(memtable_handle_array))) {
LOG_WARN("failed to get all memtables", K(ret), K(ls_id), K(tablet_id));
} else if (0 == memtable_handle_array.count()) {
// tablet does not have memtable, do nothing
} else if (1 == memtable_handle_array.count()) {
ObMemtable *memtable = nullptr;
ObTabletTxMultiSourceDataUnit tx_data;
if (OB_FAIL(memtable_handle_array.at(0).get_data_memtable(memtable))) {
LOG_WARN("failed to get memtable", K(ret), K(ls_id), K(tablet_id));
} else if (!memtable->has_multi_source_data_unit(MultiSourceDataUnitType::TABLET_TX_DATA)) {
LOG_INFO("memtable does not have msd, do nothing", K(ret), K(ls_id), K(tablet_id));
} else if (OB_FAIL(tablet->get_tx_data(tx_data))) {
LOG_WARN("failed to get tx data", K(ret), K(ls_id), K(tablet_id));
} else if (OB_FAIL(tablet->save_multi_source_data_unit(&tx_data, ObScnRange::MAX_TS,
trans_flags.for_replay_, MemtableRefOp::DEC_REF, true/*is_callback*/))) {
LOG_WARN("failed to save msd", K(ret), K(ls_id), K(tablet_id));
}
} else {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("tablet should not have more than one memtable", K(ret), K(ls_id), K(tablet_id),
"memtable_cnt", memtable_handle_array.count());
}
}
if (OB_FAIL(ret)) {
} else if (OB_FAIL(t3m->del_tablet(key))) {
// Whatever, delete tablet object from map and id set
// del_tablet and erase should swallow any not exist error
if (OB_SUCC(ret)) {
if (OB_FAIL(t3m->del_tablet(key))) {
LOG_WARN("failed to delete tablet from t3m", K(ret), K(key));
} else if (OB_FAIL(tablet_id_set_.erase(tablet_id))) {
if (OB_HASH_NOT_EXIST == ret) {
@ -903,18 +905,7 @@ int ObTabletCreateDeleteHelper::roll_back_remove_tablet(
LOG_WARN("failed to erase tablet id from hash set", K(ret), K(tablet_id));
}
}
if (OB_FAIL(ret)) {
} else if (OB_FAIL(t3m->erase_pinned_tablet(key))) {
if (OB_HASH_NOT_EXIST == ret) {
// tablet id does not exist in tablet handle map
ret = OB_SUCCESS;
} else {
LOG_WARN("failed to erase tablet handle", K(ret), K(tablet_id));
}
}
}
return ret;
}
@ -1476,7 +1467,8 @@ int ObTabletCreateDeleteHelper::check_and_get_tablet(
int ObTabletCreateDeleteHelper::acquire_tablet(
const ObTabletMapKey &key,
ObTabletHandle &handle)
ObTabletHandle &handle,
const bool only_acquire)
{
int ret = OB_SUCCESS;
ObLSHandle ls_handle;
@ -1489,7 +1481,7 @@ int ObTabletCreateDeleteHelper::acquire_tablet(
LOG_WARN("invalid arguments", K(ret), K(key));
} else if (OB_FAIL(ls_service->get_ls(key.ls_id_, ls_handle, ObLSGetMod::TABLET_MOD))) {
LOG_WARN("failed to get ls", K(ret), "ls_id", key.ls_id_);
} else if (OB_FAIL(t3m->acquire_tablet(WashTabletPriority::WTP_HIGH, key, ls_handle, tablet_handle))) {
} else if (OB_FAIL(t3m->acquire_tablet(WashTabletPriority::WTP_HIGH, key, ls_handle, tablet_handle, only_acquire))) {
LOG_WARN("failed to acquire tablet", K(ret), K(key));
} else if (OB_ISNULL(tablet_handle.get_obj())) {
ret = OB_ERR_UNEXPECTED;
@ -2310,7 +2302,7 @@ int ObTabletCreateDeleteHelper::do_create_tablet(
LOG_WARN("failed to convert_tmp", K(ret), K(scn));
} else if (OB_FAIL(create_scn.convert_tmp(create_ts))) {
LOG_WARN("failed to convert_tmp", K(ret), K(create_scn));
} else if (OB_FAIL(acquire_tablet(key, tablet_handle))) {
} else if (OB_FAIL(acquire_tablet(key, tablet_handle, false/*only acquire*/))) {
LOG_WARN("failed to acquire tablet", K(ret), K(key));
} else if (OB_FAIL(check_need_create_empty_major_sstable(table_schema, need_create_empty_major_sstable))) {
LOG_WARN("failed to check need create sstable", K(ret));