subnet "127.0.0.0/8" not found

[Emsi]

While deploying ceph-osd I got the following error:

unit-ceph-osd-0: 2016-07-13 20:19:25 INFO unit.ceph-osd/0.mon-relation-changed logger.go:40 ^MReading state information... 0%^MReading state information... 0%^MReading state information... Done
unit-ceph-osd-0: 2016-07-13 20:19:25 INFO unit.ceph-osd/0.mon-relation-changed logger.go:40 error: cannot get subnet for address "loopback address \"127.0.0.1\" of device \"lo\" on machine \"1\"": subnet "127.0.0.0/8" not found
unit-ceph-osd-0: 2016-07-13 20:19:25 INFO unit.ceph-osd/0.mon-relation-changed logger.go:40 Traceback (most recent call last):
unit-ceph-osd-0: 2016-07-13 20:19:25 INFO unit.ceph-osd/0.mon-relation-changed logger.go:40 File "/var/lib/juju/agents/unit-ceph-osd-0/charm/hooks/mon-relation-changed", line 564, in <module>
unit-ceph-osd-0: 2016-07-13 20:19:25 INFO unit.ceph-osd/0.mon-relation-changed logger.go:40 hooks.execute(sys.argv)
unit-ceph-osd-0: 2016-07-13 20:19:25 INFO unit.ceph-osd/0.mon-relation-changed logger.go:40 File "/var/lib/juju/agents/unit-ceph-osd-0/charm/hooks/charmhelpers/core/hookenv.py", line 717, in execute
unit-ceph-osd-0: 2016-07-13 20:19:25 INFO unit.ceph-osd/0.mon-relation-changed logger.go:40 self._hooks[hook_name]()
unit-ceph-osd-0: 2016-07-13 20:19:25 INFO unit.ceph-osd/0.mon-relation-changed logger.go:40 File "/var/lib/juju/agents/unit-ceph-osd-0/charm/hooks/mon-relation-changed", line 491, in mon_relation
unit-ceph-osd-0: 2016-07-13 20:19:25 INFO unit.ceph-osd/0.mon-relation-changed logger.go:40 emit_cephconf()
unit-ceph-osd-0: 2016-07-13 20:19:25 INFO unit.ceph-osd/0.mon-relation-changed logger.go:40 File "/var/lib/juju/agents/unit-ceph-osd-0/charm/hooks/mon-relation-changed", line 330, in emit_cephconf
unit-ceph-osd-0: 2016-07-13 20:19:25 INFO unit.ceph-osd/0.mon-relation-changed logger.go:40 cephcontext['public_addr'] = get_public_addr()
unit-ceph-osd-0: 2016-07-13 20:19:25 INFO unit.ceph-osd/0.mon-relation-changed logger.go:40 File "/var/lib/juju/agents/unit-ceph-osd-0/charm/hooks/charmhelpers/core/hookenv.py", line 74, in wrapper
unit-ceph-osd-0: 2016-07-13 20:19:25 INFO unit.ceph-osd/0.mon-relation-changed logger.go:40 res = func(*args, **kwargs)
unit-ceph-osd-0: 2016-07-13 20:19:25 INFO unit.ceph-osd/0.mon-relation-changed logger.go:40 File "/var/lib/juju/agents/unit-ceph-osd-0/charm/hooks/utils.py", line 100, in get_public_addr
unit-ceph-osd-0: 2016-07-13 20:19:25 INFO unit.ceph-osd/0.mon-relation-changed logger.go:40 return network_get_primary_address('public')
unit-ceph-osd-0: 2016-07-13 20:19:25 INFO unit.ceph-osd/0.mon-relation-changed logger.go:40 File "/var/lib/juju/agents/unit-ceph-osd-0/charm/hooks/charmhelpers/core/hookenv.py", line 839, in inner_translate_exc2
unit-ceph-osd-0: 2016-07-13 20:19:25 INFO unit.ceph-osd/0.mon-relation-changed logger.go:40 return f(*args, **kwargs)
unit-ceph-osd-0: 2016-07-13 20:19:25 INFO unit.ceph-osd/0.mon-relation-changed logger.go:40 File "/var/lib/juju/agents/unit-ceph-osd-0/charm/hooks/charmhelpers/core/hookenv.py", line 1009, in network_get_primary_address
unit-ceph-osd-0: 2016-07-13 20:19:25 INFO unit.ceph-osd/0.mon-relation-changed logger.go:40 return subprocess.check_output(cmd).strip()
unit-ceph-osd-0: 2016-07-13 20:19:25 INFO unit.ceph-osd/0.mon-relation-changed logger.go:40 File "/usr/lib/python2.7/subprocess.py", line 574, in check_output
unit-ceph-osd-0: 2016-07-13 20:19:25 INFO unit.ceph-osd/0.mon-relation-changed logger.go:40 raise CalledProcessError(retcode, cmd, output=output)
unit-ceph-osd-0: 2016-07-13 20:19:25 INFO unit.ceph-osd/0.mon-relation-changed logger.go:40 subprocess.CalledProcessError: Command '['network-get', '--primary-address', 'public']' returned non-zero exit status 1
unit-ceph-osd-0: 2016-07-13 20:19:25 ERROR juju.worker.uniter.operation runhook.go:107 hook "mon-relation-changed" failed: exit status 1

[James Page (james-page)]

ouput from "network-get --primary-address public":

unit-ceph-osd-0: 2016-07-13 20:19:25 INFO unit.ceph-osd/0.mon-relation-changed logger.go:40 error: cannot get subnet for address "loopback address \"127.0.0.1\" of device \"lo\" on machine \"1\"": subnet "127.0.0.0/8" not found

[James Page (james-page)]

A little bewildered as to why juju tried to bind the public extra-binding to the loopback device.

[James Page (james-page)]

redirecting bug to juju project (not something charm specific).

[John A Meinel (jameinel)]

Offhand, I don't think it was trying to use that address, it was probably looking through the addresses it new about, and find what spaces they are associated with. Which then fails because 127.0* isn't in a space.

[John A Meinel (jameinel)]

(eg, it should be able to find out that 127.0 isn't the space we want, it just is doing a lookup to see what space that subnet is in, but that subnet isn't recorded and got an error. We should just filter it.)

[John A Meinel (jameinel)]

I could be wrong and it actually did try to run there, which would certainly be broken.

[Tim Penhey (thumper)]

Stop pushing down releases, we'll assign a milestone when we actually start.

James, how often is this a problem? How seriously does it impact you?

[Canonical Juju QA Bot (juju-qa-bot)]

This bug has not been updated in 5 years, so we're marking it Expired. If you believe this is incorrect, please update the status.