upstream/borgbackup
1
0
Fork 0
mirror of https://github.com/borgbackup/borg.git synced 2026-02-24 18:30:33 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions 3

Archive: allocate zeros when needed (#2308)

Browse source 
fixes huge memory usage of mount (8 MiB × number of archives)
This commit is contained in:
enkore 2017-03-15 17:08:07 +01:00 committed by GitHub
parent e3a0c4e32d
commit 883a7eefb2
1 changed files with 3 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
src/borg/archive.py
View file

@ -325,7 +325,7 @@ class Archive:
if info is None:
raise self.DoesNotExist(name)
self.load(info.id)
self.zeros = b'\0' * (1 << chunker_params[1])
self.zeros = None
def _load_meta(self, id):
_, data = self.key.decrypt(id, self.repository.get(id))
@ -578,6 +578,8 @@ Utilization of max. archive size: {csize_max:.0%}
# Extract chunks, since the item which had the chunks was not extracted
with backup_io('open'):
fd = open(path, 'wb')
if sparse and self.zeros is None:
self.zeros = b'\0' * (1 << self.chunker_params[1])
with fd:
ids = [c.id for c in item.chunks]
for _, data in self.pipeline.fetch_many(ids, is_preloaded=True):