wget failure while fetching rings from proxy

[Andreas Hasenack]

(...)
2014-05-09 21:51:34 INFO juju-log swift-storage:22: Registered config file: /etc/swift/swift.conf
2014-05-09 21:51:34 INFO juju-log swift-storage:22: Registered config file: /etc/rsyncd.conf
2014-05-09 21:51:34 INFO juju-log swift-storage:22: Registered config file: /etc/swift/account-server.conf
2014-05-09 21:51:34 INFO juju-log swift-storage:22: Registered config file: /etc/swift/object-server.conf
2014-05-09 21:51:34 INFO juju-log swift-storage:22: Registered config file: /etc/swift/container-server.conf
2014-05-09 21:51:34 INFO juju-log swift-storage:22: Creating choice loader with dirs: [['templates/'], ['/var/lib/juju/agents/unit-swift-storage-0/charm/hooks/charmhelpers/contrib/openstack/templates']]
2014-05-09 21:51:34 INFO juju-log swift-storage:22: Loaded template from templates/swift.conf
2014-05-09 21:51:34 INFO juju-log swift-storage:22: Rendering from template: swift.conf
2014-05-09 21:51:34 INFO juju-log swift-storage:22: Wrote template /etc/swift/swift.conf.
2014-05-09 21:51:34 INFO juju-log swift-storage:22: swift-storage-node: Fetching all swift rings from proxy @ http://10.96.2.36/swift-rings.
2014-05-09 21:51:34 INFO juju-log swift-storage:22: Fetching http://10.96.2.36/swift-rings/account.ring.gz.
2014-05-09 21:51:34 INFO swift-storage-relation-changed --2014-05-09 21:51:34-- http://10.96.2.36/swift-rings/account.ring.gz
2014-05-09 21:51:34 INFO swift-storage-relation-changed Connecting to 10.96.2.36:80... failed: Connection refused.
2014-05-09 21:51:34 INFO swift-storage-relation-changed Traceback (most recent call last):
2014-05-09 21:51:34 INFO swift-storage-relation-changed File "/var/lib/juju/agents/unit-swift-storage-0/charm/hooks/swift-storage-relation-changed", line 91, in <module>
2014-05-09 21:51:34 INFO swift-storage-relation-changed main()
2014-05-09 21:51:34 INFO swift-storage-relation-changed File "/var/lib/juju/agents/unit-swift-storage-0/charm/hooks/swift-storage-relation-changed", line 85, in main
2014-05-09 21:51:34 INFO swift-storage-relation-changed hooks.execute(sys.argv)
2014-05-09 21:51:34 INFO swift-storage-relation-changed File "/var/lib/juju/agents/unit-swift-storage-0/charm/hooks/charmhelpers/core/hookenv.py", line 381, in execute
2014-05-09 21:51:34 INFO swift-storage-relation-changed self._hooks[hook_name]()
2014-05-09 21:51:34 INFO swift-storage-relation-changed File "/var/lib/juju/agents/unit-swift-storage-0/charm/hooks/charmhelpers/core/host.py", line 217, in wrapped_f
2014-05-09 21:51:34 INFO swift-storage-relation-changed f(*args)
2014-05-09 21:51:34 INFO swift-storage-relation-changed File "/var/lib/juju/agents/unit-swift-storage-0/charm/hooks/swift-storage-relation-changed", line 80, in swift_storage_relation_changed
2014-05-09 21:51:34 INFO swift-storage-relation-changed fetch_swift_rings(rings_url)
2014-05-09 21:51:34 INFO swift-storage-relation-changed File "/var/lib/juju/agents/unit-swift-storage-0/charm/hooks/swift_storage_utils.py", line 196, in fetch_swift_rings
2014-05-09 21:51:34 INFO swift-storage-relation-changed check_call(cmd)
2014-05-09 21:51:34 INFO swift-storage-relation-changed File "/usr/lib/python2.7/subprocess.py", line 540, in check_call
2014-05-09 21:51:34 INFO swift-storage-relation-changed raise CalledProcessError(retcode, cmd)
2014-05-09 21:51:34 INFO swift-storage-relation-changed subprocess.CalledProcessError: Command '['wget', u'http://10.96.2.36/swift-rings/account.ring.gz', '-O', '/etc/swift/account.ring.gz']' returned non-zero exit status 4
2014-05-09 21:51:34 ERROR juju.worker.uniter uniter.go:486 hook failed: exit status 1

If I wget that URL later, it works:

root@hgtmw:~# wget http://10.96.2.36/swift-rings/account.ring.gz
--2014-05-09 22:06:48-- http://10.96.2.36/swift-rings/account.ring.gz
Connecting to 10.96.2.36:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 184 [application/x-gzip]
Saving to: ‘account.ring.gz’

100%[===============================================================================================================================>] 184 --.-K/s in 0s

2014-05-09 22:06:48 (12.3 MB/s) - ‘account.ring.gz’ saved [184/184]

juju status output attached.

Full juju log for this unit also attached.

[Björn Tillenius (bjornt)]

FWIW, an exit status of 4 indicates a network error, so retrying the wget call would make sense.