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[FIX] memory leak of tx data

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This commit is contained in:
ZenoWang
2022-11-28 03:20:22 +00:00
committed by ob-robot
parent 34ce8ef878
commit 7597a4f144
2 changed files with 22 additions and 42 deletions
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59
src/storage/tx_table/ob_tx_data_table.cpp
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@ -193,7 +193,9 @@ void ObTxDataTable::reset()
int ObTxDataTable::prepare_for_safe_destroy()
{
return clean_memtables_cache_();
int ret = clean_memtables_cache_();
LOG_INFO("tx data table prepare for safe destroy", KR(ret), K(get_ls_id()));
return ret;
}
int ObTxDataTable::offline()
@ -644,37 +646,32 @@ int ObTxDataTable::get_tx_data_in_memtables_cache_(const ObTransID tx_id,
int ObTxDataTable::check_tx_data_in_sstable_(const ObTransID tx_id, ObITxDataCheckFunctor &fn)
{
int ret = OB_SUCCESS;
ObTxData *tx_data = nullptr;
ObTxData tx_data;
tx_data.reset();
if (OB_FAIL(get_tx_data_in_sstable_(tx_id, tx_data))) {
STORAGE_LOG(WARN, "get tx data from sstable failed.", KR(ret), K(tx_id));
} else if (OB_ISNULL(tx_data)) {
ret = OB_ERR_UNEXPECTED;
STORAGE_LOG(ERROR, "unexpected nullptr of tx data", KR(ret), K(tx_id));
} else if (OB_FAIL(fn(*tx_data))) {
} else if (OB_FAIL(fn(tx_data))) {
STORAGE_LOG(WARN, "check tx data in sstable failed.", KR(ret), KP(this), K(tablet_id_));
}
// free tx data after using it
if (OB_NOT_NULL(tx_data)) {
free_tx_data(tx_data);
// free undo status list if exist
if (OB_NOT_NULL(tx_data.undo_status_list_.head_)) {
free_undo_status_list_(tx_data.undo_status_list_.head_);
}
return ret;
}
int ObTxDataTable::get_tx_data_in_sstable_(const transaction::ObTransID tx_id, ObTxData *&tx_data)
int ObTxDataTable::get_tx_data_in_sstable_(const transaction::ObTransID tx_id, ObTxData &tx_data)
{
int ret = OB_SUCCESS;
tx_data = nullptr;
ObTableIterParam iter_param = read_schema_.iter_param_;
ObTabletHandle &tablet_handle = iter_param.tablet_handle_;
if (tablet_handle.is_valid()) {
ret = OB_ERR_UNEXPECTED;
STORAGE_LOG(ERROR, "tablet handle should be empty", KR(ret), K(tablet_handle));
} else if (OB_FAIL(alloc_tx_data(tx_data))) {
STORAGE_LOG(WARN, "allocate tx data from tx data table failed.");
} else if (FALSE_IT(tx_data->tx_id_ = tx_id)) {
} else if (FALSE_IT(tx_data.tx_id_ = tx_id)) {
} else if (OB_FAIL(ls_tablet_svr_->get_tablet(tablet_id_, tablet_handle))) {
STORAGE_LOG(WARN, "get tablet from ls tablet service fail.", KR(ret), KP(this), K(tablet_id_));
} else if (OB_UNLIKELY(!tablet_handle.is_valid())) {
@ -684,7 +681,7 @@ int ObTxDataTable::get_tx_data_in_sstable_(const transaction::ObTransID tx_id, O
ObTxDataSingleRowGetter getter(iter_param, slice_allocator_);
if (OB_FAIL(getter.init(tx_id))) {
STORAGE_LOG(WARN, "init ObTxDataSingleRowGetter fail.", KR(ret), KP(this), K(tablet_id_));
} else if (OB_FAIL(getter.get_next_row(*tx_data))) {
} else if (OB_FAIL(getter.get_next_row(tx_data))) {
if (OB_ITER_END == ret) {
ret = OB_TRANS_CTX_NOT_EXIST;
}
@ -694,11 +691,6 @@ int ObTxDataTable::get_tx_data_in_sstable_(const transaction::ObTransID tx_id, O
}
}
// If get tx data in sstable failed, free the tx data and reset it.
if (OB_FAIL(ret) && (nullptr != tx_data)) {
free_tx_data(tx_data);
tx_data = nullptr;
}
return ret;
}
@ -1217,7 +1209,8 @@ int ObTxDataTable::calc_upper_trans_scn_(const SCN sstable_end_scn, SCN &upper_t
int ObTxDataTable::supplement_undo_actions_if_exist(ObTxData *&tx_data)
{
int ret = OB_SUCCESS;
ObTxData *tx_data_from_sstable = nullptr;
ObTxData tx_data_from_sstable;
tx_data_from_sstable.reset();
if (IS_NOT_INIT) {
ret = OB_NOT_INIT;
@ -1232,17 +1225,9 @@ int ObTxDataTable::supplement_undo_actions_if_exist(ObTxData *&tx_data)
} else {
STORAGE_LOG(WARN, "get tx data from sstable failed.", KR(ret));
}
} else if (OB_ISNULL(tx_data_from_sstable)) {
ret = OB_ERR_UNEXPECTED;
STORAGE_LOG(WARN, "unexpected nullptr of tx data", KR(ret), KPC(tx_data));
} else {
// assign and reset to avoid deep copy
tx_data->undo_status_list_ = tx_data_from_sstable->undo_status_list_;
tx_data_from_sstable->undo_status_list_.reset();
}
if (OB_NOT_NULL(tx_data_from_sstable)) {
free_tx_data(tx_data_from_sstable);
tx_data->undo_status_list_ = tx_data_from_sstable.undo_status_list_;
}
return ret;
}
@ -1325,24 +1310,16 @@ int ObTxDataTable::dump_tx_data_in_memtable_2_text_(const ObTransID tx_id, FILE
int ObTxDataTable::dump_tx_data_in_sstable_2_text_(const ObTransID tx_id, FILE *fd)
{
int ret = OB_SUCCESS;
ObTxData *tx_data = nullptr;
ObTxData tx_data;
tx_data.reset();
if (OB_FAIL(get_tx_data_in_sstable_(tx_id, tx_data))) {
STORAGE_LOG(WARN, "get tx data from sstable failed.", KR(ret), K(tx_id));
} else if (OB_ISNULL(tx_data)) {
ret = OB_ERR_UNEXPECTED;
STORAGE_LOG(ERROR, "unexpected nullptr of tx data", KR(ret), K(tx_id));
} else {
fprintf(fd, "********** Tx Data SSTable ***********\n\n");
tx_data->dump_2_text(fd);
tx_data.dump_2_text(fd);
fprintf(fd, "\n********** Tx Data SSTable ***********\n");
}
// free tx data after using it
if (OB_NOT_NULL(tx_data)) {
free_tx_data(tx_data);
}
return ret;
}