Cannot start slicer as a systemd service

[j0hnys]

Hi.

I am getting a python error when i am trying to set up "slicer server slicer_1.ini" as a systemd service for ubuntu 16.04LTS

my .service file is:

[Unit]
Description=OLAP Cube
After=multi-user.target
Requires=local-fs.target
Requires=network-online.target

[Service]
Type=simple
WorkingDirectory=/usr/local/bin
ExecStart=/usr/bin/python /usr/local/bin/slicer serve /home/john/cubes1.1/cubes_projects/slicer_1.ini
Restart=always

[Install]
WantedBy=multi-user.target

and the error i am getting on "systemctl start olap_cube.service" is:

systemd[1]: Started OLAP Cube.
python[2896]: Traceback (most recent call last):
python[2896]:   File "/usr/local/bin/slicer", line 5, in <module>
python[2896]:     from pkg_resources import load_entry_point
python[2896]:   File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2927, in <module>
python[2896]:     @_call_aside
python[2896]:   File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2913, in _call_aside
python[2896]:     f(*args, **kwargs)
python[2896]:   File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2940, in _initialize_master_working_set
python[2896]:     working_set = WorkingSet._build_master()
python[2896]:   File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 635, in _build_master
python[2896]:     ws.require(__requires__)
python[2896]:   File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 943, in require
python[2896]:     needed = self.resolve(parse_requirements(requirements))
python[2896]:   File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 829, in resolve
python[2896]:     raise DistributionNotFound(req, requirers)
python[2896]: pkg_resources.DistributionNotFound: The 'expressions>=0.2.3' distribution was not found and is required by cubes
systemd[1]: olap_cube.service: Main process exited, code=exited, status=1/FAILURE
systemd[1]: olap_cube.service: Unit entered failed state.
systemd[1]: olap_cube.service: Failed with result 'exit-code'.
systemd[1]: olap_cube.service: Service hold-off time over, scheduling restart.
systemd[1]: Stopped OLAP Cube.

Has anyone experienced this issue before?

Thank you.

[KhaledTo]

Hi,

Didn't experience this issue, but it looks like the package "expressions" that is in requirements.txt needs to be installed or updated, or it is not found because of a path issue.

Thank you.

[jjmontesl]

Closing as issue is already answered by @KhaledTo.