On Fri, Jun 24, 2011 at 10:06, Lloyd, Dave <dlloyd@xxxxxxxxx> wrote:
> I'm attempting to implement delegation with func 0.28. So far I've:
>
> . Added Delegate = True to /etc/func/overlord.conf on the master overlord server
> . Run func-build-map
>
> Currently all hosts are directly pingable by the overlord. When I run something like func "*" ping I get this:
>
> Traceback (most recent call last):
> File "/usr/bin/func", line 28, in ?
> ret = cli.parse(argv)
> File "/usr/lib/python2.4/site-packages/func/overlord/command.py", line 252, in parse
> return self.subCommands[command].parse(args[1:])
> File "/usr/lib/python2.4/site-packages/func/overlord/command.py", line 233, in parse
> ret = self.do(args)
> File "/usr/lib/python2.4/site-packages/func/overlord/cmd_modules/ping.py", line 66, in do
> results = overlord_obj.run("test", "ping", [])
> File "/usr/lib/python2.4/site-packages/func/overlord/client.py", line 791, in run
> directhash.update(self.run_direct(module,method,args,nforks))
> TypeError: iteration over non-sequence
>
> I added some pretty printing to the args:
> module:
> 'test'
> method:
> 'ping'
> args:
> []
> nforks:
> 1
>
> If I do something more complicated, here's what I get:
> func "*" call command run "cat /etc/hosts"
> module:
> 'jobs'
> method:
> 'job_status'
> args:
> ('1308912977.796803-minion',)
> nforks:
> 1
> Traceback (most recent call last):
> File "/usr/bin/func", line 28, in ?
> ret = cli.parse(argv)
> File "/usr/lib/python2.4/site-packages/func/overlord/command.py", line 252, in parse
> return self.subCommands[command].parse(args[1:])
> File "/usr/lib/python2.4/site-packages/func/overlord/cmd_modules/call.py", line 227, in parse
> return base_command.BaseCommand.parse(self, argv)
> File "/usr/lib/python2.4/site-packages/func/overlord/command.py", line 233, in parse
> ret = self.do(args)
> File "/usr/lib/python2.4/site-packages/func/overlord/cmd_modules/call.py", line 348, in do
> return self.overlord_obj.local.utils.async_poll(results, self.print_results)
> File "/usr/lib/python2.4/site-packages/func/overlord/client.py", line 90, in __call__
> return self.clientref.run(module,method,args,nforks=self.nforks)
> File "/usr/lib/python2.4/site-packages/func/overlord/client.py", line 749, in run
> return self.methods[method](*args)
> File "/usr/lib/python2.4/site-packages/func/overlord/modules/utils.py", line 15, in async_poll
> (return_code, async_results) = self.parent.job_status(job_id)
> File "/usr/lib/python2.4/site-packages/func/overlord/client.py", line 605, in job_status
> client_class_config=self.config)
> File "/usr/lib/python2.4/site-packages/func/jobthing.py", line 287, in job_status
> minion_result = client.jobs.job_status(minion_job)
> File "/usr/lib/python2.4/site-packages/func/overlord/client.py", line 90, in __call__
> return self.clientref.run(module,method,args,nforks=self.nforks)
> File "/usr/lib/python2.4/site-packages/func/overlord/client.py", line 791, in run
> directhash.update(self.run_direct(module,method,args,nforks))
> TypeError: cannot convert dictionary update sequence element #0 to a sequence
>
> If I turn off delegation, all works well.
>
> Anyone have any ideas about what's going on and how I can further debug the issue?
So... in my environment I have 4 levels of overlords. I'll be fancy
with the names to help distinguish layers: (paste this into a
monospace editor if it doesn't line up)
emperor
|
overlord____________
| \
lord1_____ lord2_____
| \ | \
foreman1 servants1 foreman2 servants2
| |
fieldhands1 fieldhands2
The only level I can successfully run delegated calls from almost all
the time (except for map generation, which sometimes takes so long I
have to manually build it) is: emperor
If I run delegation at the lordX level, and my glob matches the
servants and fieldhands, It will error (different than the one you
have). But as long as its grabbing just from servants OR fieldhands
its fine.
I can't remember the exact scenario that describes what you are seeing
(i've run into it as well), but it has to do with errors coming from
hosts saying they can't find the glob you called.
Its kind of irritating, but without the deep lays of delegation I have
none of it seems to work.
This is something that is on my list to track down and resolve, but I
need to finish the implementation of a big project before I can work
on try to finish tracking it down.
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