** Description changed:
Workarounds
----------------
If you can write to the branch:
- Use the fixer script attached to this bug to repair the affected branch
(by fetching the missing parts from the stacked-on repository). Run it as
'fix-branch.py bzr+ssh://bazaar.launchpad.net/~user/project/branch'. You must
have write access to the branch to do this.
- Alternatively just delete the affected branch and repush it with a fixed
client (1.14rc2 or newer)
If you cannot write to the branch:
- Use non-smart URLs to access an affected branch, e.g. sftp:// or
nosmart+bzr+ssh://. This works because the client can access the
stacked-on repository, and the missing data is present there, but will
be slower as it disables streaming fetch.
Details
-------
When bzr introduced stacking the data pushed to a stacking branch was
too minimal. This lack was discovered when streaming fetch from stacked
branches was enabled. The server needs to be able to generate a delta of
the data in its graph to decide what to send the client, and the ACF
record sent to the client is an indicator that it was failing to do this
correctly.
Resolution
----------
- Use bzr.dev newer than r4037 (or bzr 1.15 or newer) on the server and
+ Use bzr.dev newer than r4307 (or bzr 1.15 or newer) on the server and
bzr 1.13 or newer as clients with bzr+ssh or bzr+http urls. If the
server cannot run 1.15, use bzr 1.13.2 or 1.14rc2 or newer on the
client. Do not use older bzr versions.
bzr.dev and 1.14rc2 have been fixed on the client side to always include
enough data, and bzr.dev (and thus bzr 1.15) include a fix for the
server to make bzr 1.13 clients that use the Repository.insert_stream*
HPSS verbs send the missing records. (See also bug 368418 about the
server fix in bzr.dev)
Symptom
-------
When pulling affected branches, you get a traceback like this:
bzr: ERROR: bzrlib.errors.ErrorFromSmartServer: Error received from
smart server: ('error', "'AbsentContentFactory' object has no attribute
'get_bytes_as'")
Traceback (most recent call last):
...
File "/Library/Python/2.6/site-packages/bzrlib/decorators.py", line 192, in
write_locked
result = unbound(self, *args, **kwargs)
File "/Library/Python/2.6/site-packages/bzrlib/repository.py", line 2991,
in fetch
pb=pb, find_ghosts=find_ghosts)
File "/Library/Python/2.6/site-packages/bzrlib/fetch.py", line 84, in
__init__
self.__fetch()
File "/Library/Python/2.6/site-packages/bzrlib/fetch.py", line 110, in
__fetch
self._fetch_everything_for_search(search)
File "/Library/Python/2.6/site-packages/bzrlib/fetch.py", line 138, in
_fetch_everything_for_search
stream, from_format, [])
File "/Library/Python/2.6/site-packages/bzrlib/repository.py", line 3791,
in insert_stream
return self._locked_insert_stream(stream, src_format)
File "/Library/Python/2.6/site-packages/bzrlib/repository.py", line 3819,
in _locked_insert_stream
for substream_type, substream in stream:
File "/Library/Python/2.6/site-packages/bzrlib/remote.py", line 1709, in
missing_parents_chain
for kind, substream in stream:
File "/Library/Python/2.6/site-packages/bzrlib/smart/repository.py", line
447, in record_stream
for bytes in byte_stream:
File "/Library/Python/2.6/site-packages/bzrlib/smart/message.py", line 336,
in read_streamed_body
_translate_error(self._body_error_args)
File "/Library/Python/2.6/site-packages/bzrlib/smart/message.py", line 355,
in _translate_error
raise errors.ErrorFromSmartServer(error_tuple)
ErrorFromSmartServer: Error received from smart server: ('error',
"'AbsentContentFactory' object has no attribute 'get_bytes_as'")
--
ErrorFromSmartServer - AbsentContentFactory object has no attribute
'get_bytes_as' exception while pulling from Launchpad
https://bugs.launchpad.net/bugs/354036
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