On 4 May 2018 at 20:37, John Spray <jspray@xxxxxxxxxx> wrote:
> On Fri, May 4, 2018 at 4:00 PM, Rishabh Dave <ridave@xxxxxxxxxx> wrote:
>> On 2 May 2018 at 22:36, Patrick Donnelly <pdonnell@xxxxxxxxxx> wrote:
>>>
>>> It's not necessary but it shouldn't be much more work*. I'd recommend
>>> updating vstart_runner.py too.
>>>
>>> * You should be able to run the Python payloads in
>>> test_volume_client.py manually.
>>
>> I am trying to run the payloads manually by copying it (and the
>> standard header and footers) in a file[1] for convenience in
>> src/pybind/ so that ceph_volume_client.py and rest of modules are
>> available immediately. However, on running the test, I get the
>> following error -
>>
>> Traceback (most recent call last):
>> File "test.py", line 1, in <module>
>> from ceph_volume_client import CephFSVolumeClient, VolumePath
>> File "/home/centos/repos/ceph/src/pybind/test/ceph_volume_client.py",
>> line 22, in <module>
>> import cephfs
>> ImportError: No module named 'cephfs'
>>
>> After the adding
>> "/home/centos/repos/ceph/build/lib/cython_modules/lib.3/" to
>> PYTHONPATH env. variable, I get a similar error message -
>>
>> Traceback (most recent call last):
>> File "test.py", line 1, in <module>
>> from ceph_volume_client import CephFSVolumeClient, VolumePath
>> File "/home/centos/repos/ceph/src/pybind/test/ceph_volume_client.py",
>> line 22, in <module>
>> import cephfs
>> ImportError: libcephfs.so.2: cannot open shared object file: No such
>> file or directory
>>
>> libcephfs.so.2 resides in ceph/build/lib/libcephfs.so.2 but updating
>> PYTHONPATH has no impact. How do I proceed?
>
> Because the python libraries are importing the equivalent C libraries,
> you also need to update LD_LIBRARY_PATH
>
> My (python 2) prefix looks like this:
> LD_LIBRARY_PATH=~/ceph/build/lib/
> PYTHONPATH=~/ceph/build/lib/cython_modules/lib.2/
Occasionally, despite of exporting the above environment variables
with right values I see the following error -
$ python3
Python 3.4.5 (default, Dec 11 2017, 14:22:24)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-16)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import ceph_volume_client
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/centos/repos/ceph/src/pybind/ceph_volume_client.py",
line 22, in <module>
import cephfs
ImportError: dynamic module does not define init function (PyInit_cephfs)
I have tried `$ git clean -f` to get rid of cephfs.c generated using
cephfs.pyx (and other .c files generated from .pyx), but it has been
no good. What has worked last 2 times is (which obviously is
incorrect) to reboot the instance and run make so that is build cephfs
module again. Any ideas about what has been going wrong? I have copied
make's output and the environment variable's values here -
https://paste.fedoraproject.org/paste/J7d61XOvQNMGN2dacvbqqg.
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