3^3: Pilot3/python3/v7r3

[Daniela Bauer]

Hi All,

This might be just one of my "what have I done wrong now" questions.

I have a preprod server with a freshly installed v7.3.5 release.  

I have set

Operations/GridPP/Pilot/Version to v7.3.5

and

Systems/WorkloadManagement/Devel/Agents/SiteDirector

Pilot3=True

Python3Pilots=True

The pilot are submitted, but fail on the nodes with the error below:

WARNING: dirac 7.3.5 does not provide the extra 'pilot'

Traceback (most recent call last):
  File "dirac-pilot.py", line 71, in <module>
    command.execute()
  File "/srv/localstage/condor/dir_69927/DIRAC_Vpuv4Kpilot/pilotCommands.py", line 458, in execute
    if LooseVersion(self.releaseVersion) >= self.cfgOptionDIRACVersion:
  File "/usr/lib64/python2.7/distutils/version.py", line 296, in __cmp__
    return cmp(self.version, other.version)
AttributeError: LooseVersion instance has no attribute 'version'

Does anyone know what happened here (beyond the obvious) and what I could do about it ?

As a bonus point: I tried a different site this morning, got the same error, but the WARNING changed to:

WARNING: dirac 7.3.7 does not provide the extra 'pilot'

(note the version number!) even though I didn't do any updates on my server.

Daniela

[Chris Burr]

Hi Daniela,

The only way that I can think of to trigger this is that
self.cfgOptionDIRACVersion is LooseVersion(""), i.e.

>>> LooseVersion("v7.3.5") >= LooseVersion("")

Traceback (most recent call last):

File "<stdin>", line 1, in <module>
File "/usr/lib64/python2.6/distutils/version.py", line 296, in __cmp__

return cmp(self.version, other.version)
AttributeError: LooseVersion instance has no attribute 'version'

That seems to be impossible in the vanilla pilot files but perhaps
you're overriding something in GridPP?

https://github.com/DIRACGrid/Pilot/blob/master/Pilot/pilotTools.py#L380-L394

Cheers,

Chris

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[Daniela Bauer]

So, the hint was in the 'why  did the DIRAC version change' when I didn't change it.

I had forgotten to set the SaveDirectory location in the PilotSyncAgent (the config had been inherited from the previous v7r1 install). Not being able to get the pilot.json DIRAC then falls back to get the latest and greatest version of cvmfs, but seemingly without the correct configuration servers.

Not sure that fallback is a good idea, but at least the rest seems to work now. 

Cheers,

Daniela