memcache key length error

[Sam Morrison]

Getting the following error with 1:0.3.2-0ubuntu1~cloud0 (havana cloud archive)

Note this was fixed upstream a while ago.

2013-11-13 09:37:49.827 14452 INFO glance.wsgi.server [-] Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/eventlet/wsgi.py", line 384, in handle_one_response
    result = self.application(self.environ, start_response)
  File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 130, in __call__
    resp = self.call_func(req, *args, **self.kwargs)
  File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 195, in call_func
    return self.func(req, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/glance/common/wsgi.py", line 362, in __call__
    response = req.get_response(self.application)
  File "/usr/lib/python2.7/dist-packages/webob/request.py", line 1296, in send
    application, catch_exc_info=False)
  File "/usr/lib/python2.7/dist-packages/webob/request.py", line 1260, in call_application
    app_iter = application(self.environ, start_response)
  File "/usr/lib/python2.7/dist-packages/keystoneclient/middleware/auth_token.py", line 535, in __call__
    token_info = self._validate_user_token(user_token)
  File "/usr/lib/python2.7/dist-packages/keystoneclient/middleware/auth_token.py", line 791, in _validate_user_token
    self._cache_store_invalid(user_token)
  File "/usr/lib/python2.7/dist-packages/keystoneclient/middleware/auth_token.py", line 1044, in _cache_store_invalid
    self._cache_store(token, 'invalid')
  File "/usr/lib/python2.7/dist-packages/keystoneclient/middleware/auth_token.py", line 1007, in _cache_store
    time=self.token_cache_time)
  File "/usr/lib/python2.7/dist-packages/memcache.py", line 565, in set
    return self._set("set", key, val, time, min_compress_len)
  File "/usr/lib/python2.7/dist-packages/memcache.py", line 772, in _set
    self.check_key(key)
  File "/usr/lib/python2.7/dist-packages/memcache.py", line 1023, in check_key
    % self.server_max_key_length)
MemcachedKeyLengthError: Key length is > 250

[Impact]
Invalid PKI tokens are cached in memcache using the entire token as
key. This triggers the familiar memcache key length error since a
PKI token is much longer than 250 characters.

[Test Case]
<< to be confirmed >>
1. Install keystone, configure it to use PKI authentication
2. When keystone interacts with other components, no exceptions should be triggered.

[Regression potential]
Minimal. Fix has been pushes upstream and tested, and only affects the PKI case of keystone.

[James Page (james-page)]

Reference upstream is bug 1206347 which is released in 0.4.x series; needs a backport for SRU.

[James Page (james-page)]

Trusty already has 0.4.x - marking Fix Released for that task.

[Rolf Leggewie (r0lf)]

saucy has seen the end of its life and is no longer receiving any updates. Marking the saucy task for this ticket as "Won't Fix".