def _query_parent_storage(self) -> storage.Storage:
parent_storage = storage.query_by_ident(self.parent_ident)
if not parent_storage:
unconsumed = journal.query_unconsumed_create(
self._params.journal_obj)
for jn in unconsumed:
if jn.new_ident == self.parent_ident and jn.is_qcow:
"""发现父快照还在日志表中，且父快照为qcow文件类型"""
jn.append_child_storage_ident(self.new_ident)
if jn.is_root:
_logger.info(
f'parent in journal and is root. <{jn.token}>')
else:
_logger.info(
f'parent in journal and not root. _find_parent_in_storage. <{jn.token}>'
)
parent_storage = self._find_parent_in_storage(
unconsumed)
break
else:
raise exc.generate_exception_and_logger(
'CDP快照存储父节点无效',
f'journal {self._params.token} parent_ident invalid {self.parent_ident}, not in storage',
0)
_logger.info(f'{self} _query_parent_storage : ({parent_storage})')
return parent_storage
def _query_parent_storage(self) -> storage.Storage:
parent_storage = storage.query_by_ident(self.parent_ident)
if not parent_storage:
raise exc.generate_exception_and_logger(
'QCOW快照存储父节点无效',
f'journal {self._params.token} parent_ident invalid {self.parent_ident}, not in storage',
0)
_logger.info(f'{self} _query_parent_storage : ({parent_storage})')
return parent_storage
def _find_parent_in_storage(
self, unconsumed: typing.List[journal.CreateInJournal]
) -> storage.Storage:
first_in_journals = self._params
_ = xf.DataHolder()
while _.set(first_in_journals.query_parent_in_journals(unconsumed)):
first_in_journals = _.get()
st = storage.query_by_ident(first_in_journals.parent_ident)
if st:
return st
else:
raise exc.generate_exception_and_logger(
'CDP快照存储父节点无效',
f'journal {self._params.token} parent_ident invalid {self.parent_ident}, not chain',
0)
def _deal_in_storage(self, ident) -> bool:
st = storage.query_by_ident(ident)
if not st:
return False
if st.status == m.SnapshotStorage.STATUS_STORAGE:
st.update_status(m.SnapshotStorage.STATUS_RECYCLING)
_logger.info(
f'set [{st}] recycling. because destroy by {self._params.token}'
)
return True
elif st.status in (
m.SnapshotStorage.STATUS_ABNORMAL,
m.SnapshotStorage.STATUS_DELETED,
m.SnapshotStorage.STATUS_RECYCLING,
):
_logger.warning(f'{ident} status is {st}, NOT update to RECYCLING')
return True
else:
raise DestroyJournal.DelayDealException()
def _set_storage_status(self, status):
with lm.get_storage_locker(self.trace_msg), s.transaction():
storage.query_by_ident(self.handle.storage_chain.last_storage_item.
ident).update_status(status)
def _query_depend_nodes(self):
tree_ident = storage.query_by_ident(self.storage_ident).tree_ident
storage_tree = tree.generate(tree_ident)
return storage_tree.fetch_nodes_to_root(self.storage_ident)
def save_work_result(self):
if self.work_successful:
storage.query_by_ident(self.storage_item.ident).update_status(
m.SnapshotStorage.STATUS_DELETED)
return self.work_successful