> -----Original Message----- > From: Greg Swift [mailto:gregswift@xxxxxxxxx] > Sent: Friday, June 24, 2011 10:44 AM > To: Lloyd, Dave > Cc: func-list@xxxxxxxxxx > Subject: Re: Delegation broken? > > 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. I'm not even able to get to the first level of overlords. If I turn delegation on at all I get the failures mentioned above. Setting delegate=false on the emperor and things work again. Ultimately, my goal is the same as yours except the fieldhands and foremen may not have direct network access back to the emperor. Are there other configuration settings I need to be implementing on emperor and other systems? Should I set delegate = True on all systems in /etc/func/overlord.conf or do I only need to set it on the emperor systems (I've only set it on the emperor system so far)? Unfortunately the documentation is a bit light on setting up delegation. -- Dave Lloyd Product Support Engineer, Exegy, Inc. This e-mail and any documents accompanying it may contain legally privileged and/or confidential information belonging to Exegy, Inc. Such information may be protected from disclosure by law. The information is intended for use by only the addressee. If you are not the intended recipient, you are hereby notified that any disclosure or use of the information is strictly prohibited. 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