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https://github.com/borgbackup/borg.git
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More repository check/repair improvements
This commit is contained in:
Jonas Borgström
parent
22548841a2
commit
bbf490bf8b
2 changed files with 76 additions and 27 deletions
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@ -206,7 +206,10 @@ def report_progress(msg, error=False):
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segments_transaction_id = self.io.get_segments_transaction_id(index_transaction_id)
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if index_transaction_id is None and segments_transaction_id is None:
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return True
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transaction_id = max(index_transaction_id or 0, segments_transaction_id or 0)
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if segments_transaction_id is not None:
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transaction_id = segments_transaction_id
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else:
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transaction_id = index_transaction_id
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self.get_index(None)
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if index_transaction_id == segments_transaction_id:
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current_index = self.get_read_only_index(transaction_id)
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@ -217,6 +220,11 @@ def report_progress(msg, error=False):
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for segment, filename in self.io.segment_iterator():
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if segment > transaction_id:
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if repair:
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report_progress('Deleting uncommitted segment {}'.format(segment), error=True)
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self.io.delete_segment(segment)
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else:
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report_progress('Uncommitted segment {} found'.format(segment), error=True)
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continue
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if progress:
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if int(time.time()) != progress_time:
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@ -254,12 +262,22 @@ def report_progress(msg, error=False):
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continue
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else:
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report_progress('Unexpected tag {} in segment {}'.format(tag, segment), error=True)
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# We might need to add a commit tag if no committed segment is found
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if repair and segments_transaction_id is None:
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report_progress('Adding commit tag to segment {}'.format(transaction_id))
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self.io.segment = transaction_id + 1
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self.io.write_commit()
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self.io.close_segment()
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if current_index and len(current_index) != len(self.index):
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report_progress('Index object count mismatch. {} != {}'.format(len(current_index), len(self.index)), error=True)
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if not error_found:
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report_progress('Check complete, no errors found.')
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if repair:
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self.write_index()
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else:
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# Delete temporary index file
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self.index = None
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os.unlink(os.path.join(self.path, 'index.tmp'))
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self.rollback()
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return not error_found or repair
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@ -364,9 +382,9 @@ def get_segments_transaction_id(self, index_transaction_id=0):
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"""Verify that the transaction id is consistent with the index transaction id
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"""
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for segment, filename in self.segment_iterator(reverse=True):
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if index_transaction_id is not None and segment < index_transaction_id:
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# The index is newer than any committed transaction found
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return -1
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# if index_transaction_id is not None and segment < index_transaction_id:
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# # The index is newer than any committed transaction found
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# return -1
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if self.is_committed_segment(filename):
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return segment
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return None
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@ -106,6 +106,14 @@ def tearDown(self):
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self.repository.close()
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shutil.rmtree(self.tmppath)
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def list_indices(self):
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return [name for name in os.listdir(os.path.join(self.tmppath, 'repository')) if name.startswith('index.')]
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def check(self, repair=False, status=True):
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self.assert_equal(self.repository.check(repair=repair), status)
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# Make sure no tmp files are left behind
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self.assert_equal([name for name in os.listdir(os.path.join(self.tmppath, 'repository')) if 'tmp' in name], [], 'Found tmp files')
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def get_objects(self, *ids):
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for id_ in ids:
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self.repository.get(('%032d' % id_).encode('ascii'))
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@ -145,75 +153,98 @@ def list_objects(self):
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def test_repair_corrupted_segment(self):
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self.add_objects([[1, 2, 3], [4, 5, 6]])
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self.assert_equal(set([1, 2, 3, 4, 5, 6]), self.list_objects())
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self.assert_equal(True, self.repository.check())
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self.check(status=True)
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self.corrupt_object(5)
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self.assert_raises(IntegrityError, lambda: self.get_objects(5))
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self.repository.rollback()
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# Make sure a regular check does not repair anything
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self.assert_equal(False, self.repository.check())
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self.assert_equal(False, self.repository.check())
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self.check(status=False)
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self.check(status=False)
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# Make sure a repair actually repairs the repo
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self.assert_equal(True, self.repository.check(repair=True))
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self.check(repair=True, status=True)
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self.get_objects(4)
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self.assert_equal(True, self.repository.check())
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self.check(status=True)
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self.assert_equal(set([1, 2, 3, 4, 6]), self.list_objects())
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def test_repair_missing_segment(self):
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self.add_objects([[1, 2, 3], [4, 5, 6]])
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self.assert_equal(set([1, 2, 3, 4, 5, 6]), self.list_objects())
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self.assert_equal(True, self.repository.check())
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self.check(status=True)
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self.delete_segment(1)
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self.repository.rollback()
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self.assert_equal(True, self.repository.check(repair=True))
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self.check(repair=True, status=True)
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self.assert_equal(set([1, 2, 3]), self.list_objects())
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def test_repair_missing_commit_segment(self):
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self.add_objects([[1, 2, 3], [4, 5, 6]])
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self.delete_segment(1)
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self.assert_raises(Repository.CheckNeeded, lambda: self.get_objects(4))
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self.assert_equal(False, self.repository.check())
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self.check(status=False)
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self.assert_raises(Repository.CheckNeeded, lambda: self.get_objects(4))
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self.assert_equal(True, self.repository.check(repair=True))
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self.check(repair=True, status=True)
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self.assert_raises(Repository.DoesNotExist, lambda: self.get_objects(4))
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self.assert_equal(set([1, 2, 3]), self.list_objects())
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def test_repair_corrupted_commit_segment(self):
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self.add_objects([[1, 2, 3], [4, 5, 6]])
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with open(os.path.join(self.tmppath, 'repository', 'data', '0', '1'), 'ab') as fd:
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with open(os.path.join(self.tmppath, 'repository', 'data', '0', '1'), 'r+b') as fd:
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fd.seek(-1, os.SEEK_END)
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fd.write(b'X')
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self.assert_raises(Repository.CheckNeeded, lambda: self.get_objects(4))
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self.assert_equal(False, self.repository.check())
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self.assert_equal(True, self.repository.check(repair=True))
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self.get_objects(4)
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self.assert_equal(set([1, 2, 3, 4, 5, 6]), self.list_objects())
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self.check(status=False)
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self.check(repair=True, status=True)
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self.get_objects(3)
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self.assert_raises(Repository.DoesNotExist, lambda: self.get_objects(4))
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self.assert_equal(set([1, 2, 3]), self.list_objects())
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def test_repair_no_commits(self):
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self.add_objects([[1, 2, 3]])
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with open(os.path.join(self.tmppath, 'repository', 'data', '0', '0'), 'r+b') as fd:
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fd.seek(-1, os.SEEK_END)
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fd.write(b'X')
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self.assert_raises(Repository.CheckNeeded, lambda: self.get_objects(4))
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self.check(status=False)
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self.check(status=False)
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self.assert_equal(self.list_indices(), ['index.0'])
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self.check(repair=True, status=True)
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self.assert_equal(self.list_indices(), ['index.1'])
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self.check(status=True)
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self.get_objects(3)
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self.assert_equal(set([1, 2, 3]), self.list_objects())
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def test_repair_missing_index(self):
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self.add_objects([[1, 2, 3], [4, 5, 6]])
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self.delete_index()
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self.assert_raises(Repository.CheckNeeded, lambda: self.get_objects(4))
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self.assert_equal(False, self.repository.check())
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self.assert_equal(True, self.repository.check(repair=True))
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self.assert_equal(True, self.repository.check())
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self.check(status=False)
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self.check(repair=True, status=True)
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self.check(status=True)
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self.get_objects(4)
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self.assert_equal(set([1, 2, 3, 4, 5, 6]), self.list_objects())
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def test_repair_index_too_old(self):
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self.add_objects([[1, 2, 3], [4, 5, 6]])
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self.assert_equal(self.list_indices(), ['index.1'])
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self.rename_index('index.0')
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self.assert_equal(self.list_indices(), ['index.0'])
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self.assert_raises(Repository.CheckNeeded, lambda: self.get_objects(4))
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self.assert_equal(False, self.repository.check())
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self.assert_equal(True, self.repository.check(repair=True))
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self.assert_equal(True, self.repository.check())
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self.check(status=False)
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self.check(repair=True, status=True)
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self.assert_equal(self.list_indices(), ['index.1'])
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self.check(status=True)
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self.get_objects(4)
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self.assert_equal(set([1, 2, 3, 4, 5, 6]), self.list_objects())
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def test_repair_index_too_new(self):
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self.add_objects([[1, 2, 3], [4, 5, 6]])
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self.assert_equal(self.list_indices(), ['index.1'])
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self.rename_index('index.100')
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self.assert_equal(self.list_indices(), ['index.100'])
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self.assert_raises(Repository.CheckNeeded, lambda: self.get_objects(4))
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self.assert_equal(False, self.repository.check())
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self.assert_equal(True, self.repository.check(repair=True))
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self.assert_equal(True, self.repository.check())
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self.check(status=False)
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self.check(repair=True, status=True)
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self.assert_equal(self.list_indices(), ['index.1'])
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self.check(status=True)
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self.get_objects(4)
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self.assert_equal(set([1, 2, 3, 4, 5, 6]), self.list_objects())
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