glance-cache-prefetcher exceptions when ran

[Antony Messerli]

Running latest trunk, glance-cache-prefetcher exceptions when starting:

Traceback (most recent call last):
  File "/usr/bin/glance-cache-prefetcher", line 65, in <module>
    conf, app = config.load_paste_app('glance-prefetcher', options, args)
  File "/usr/lib/pymodules/python2.6/glance/common/config.py", line 304, in load_paste_app
    app = deploy.loadapp("config:%s" % conf_file, name=app_name)
  File "/usr/lib/pymodules/python2.6/paste/deploy/loadwsgi.py", line 247, in loadapp
    return loadobj(APP, uri, name=name, **kw)
  File "/usr/lib/pymodules/python2.6/paste/deploy/loadwsgi.py", line 272, in loadobj
    return context.create()
  File "/usr/lib/pymodules/python2.6/paste/deploy/loadwsgi.py", line 710, in create
    return self.object_type.invoke(self)
  File "/usr/lib/pymodules/python2.6/paste/deploy/loadwsgi.py", line 146, in invoke
    return fix_call(context.object, context.global_conf, **context.local_conf)
  File "/usr/lib/pymodules/python2.6/paste/deploy/util.py", line 56, in fix_call
    val = callable(*args, **kw)
  File "/usr/lib/pymodules/python2.6/glance/image_cache/prefetcher.py", line 88, in app_factory
    return Prefetcher(conf)
  File "/usr/lib/pymodules/python2.6/glance/image_cache/prefetcher.py", line 41, in __init__
    self.cache = ImageCache(options)
  File "/usr/lib/pymodules/python2.6/glance/image_cache/__init__.py", line 39, in __init__
    self.init_driver()
  File "/usr/lib/pymodules/python2.6/glance/image_cache/__init__.py", line 59, in init_driver
    self.configure_driver()
  File "/usr/lib/pymodules/python2.6/glance/image_cache/__init__.py", line 68, in configure_driver
    self.driver.configure()
  File "/usr/lib/pymodules/python2.6/glance/image_cache/drivers/sqlite.py", line 97, in configure
    self.set_paths()
  File "/usr/lib/pymodules/python2.6/glance/image_cache/drivers/sqlite.py", line 105, in set_paths
    self.incomplete_dir = os.path.join(self.base_dir, 'incomplete')
  File "/usr/lib/python2.6/posixpath.py", line 67, in join
    elif path == '' or path.endswith('/'):
AttributeError: 'NoneType' object has no attribute 'endswith'

[Brian Waldon (bcwaldon)]

This bug is caused by a missing 'image_cache_dir' option in glance-api.conf. Yes, you have to repeat the option in multiple config files. This specific case was caused by the older definition of 'image_cache_datadir'. Note the difference between 'dir' and 'datadir'.

[Openstack Gerrit (openstack-gerrit)]

Reviewed: https://review.openstack.org/1486
Committed: http://github.com/openstack/glance/commit/1d2e29063f359a8187fbcc39d4d00ce203c6193c
Submitter: Jenkins
Branch: master

 status fixcommitted
 done

commit 1d2e29063f359a8187fbcc39d4d00ce203c6193c
Author: Brian Waldon <email address hidden>
Date: Wed Nov 9 20:43:03 2011 -0500

    Gracefully handle image_cache_dir being undefined

    This abstracts out the 'set_paths' method of our two cache drivers into the
    base driver for now. It raises an exception when image_cache_dir is not
    defined. Fixes bug 888340

    Change-Id: Ib0be8c9b29ba1efebd03a0cdb8d001a003fc236f