652700 - [traceback] MemcachedKeyLengthError: Key length is > 250

Status: RESOLVED FIXED

(developer.mozilla.org Graveyard :: Wiki pages, defect)

Description

[Stephen Donner [:stephend] Not actively reading bugmail]

Hitting https://developer-stage.mozilla.org/en-US/demos/profile/[e-mail]?sort=%3Cscript%3Evar+pf_68747470733a2f2f646576656c6f7065722d73746167652e6d6f7a696c6c612e6f72672f656e2d55532f64656d6f732f70726f66696c652f6d636f61746573406d6f7a696c6c612e636f6d_736f7274=new+Boolean();%3C/script%3E gives me the following traceback:

Traceback (most recent call last):

  File "/data/www/django/developer.mozilla.org/mdn/vendor/packages/Django/django/core/handlers/base.py", line 100, in get_response
    response = callback(request, *callback_args, **callback_kwargs)

  File "/data/www/django/developer.mozilla.org/mdn/apps/demos/views.py", line 140, in profile_detail
    template_name='demos/profile_detail.html')

  File "/data/www/django/developer.mozilla.org/mdn/vendor/packages/Django/django/views/generic/list_detail.py", line 101, in object_list
    return HttpResponse(t.render(c), mimetype=mimetype)

  File "/data/www/django/developer.mozilla.org/mdn/lib/utils.py", line 104, in render
    return self.template.render(context_dict)

  File "/data/www/django/developer.mozilla.org/mdn/vendor/packages/jinja2/jinja2/environment.py", line 891, in render
    return self.environment.handle_exception(exc_info, True)

  File "/data/www/django/developer.mozilla.org/mdn/apps/demos/templates/demos/profile_detail.html", line 4, in top-level template code
    {% set username  = profile_user.username %}

  File "/data/www/django/developer.mozilla.org/mdn/apps/demos/templates/demos/base.html", line 1, in top-level template code
    {% extends "base_compact.html" %}

  File "/data/www/django/developer.mozilla.org/mdn/templates/base_compact.html", line 1, in top-level template code
    {% extends "base.html" %}

  File "/data/www/django/developer.mozilla.org/mdn/templates/base.html", line 89, in top-level template code
    {% block content %}{% endblock %}

  File "/data/www/django/developer.mozilla.org/mdn/apps/demos/templates/demos/profile_detail.html", line 53, in block "content"
    {{ submission_listing(

  File "/data/www/django/developer.mozilla.org/mdn/apps/demos/helpers.py", line 76, in wrapper
    out = cache.get(cache_key)

  File "/data/www/django/developer.mozilla.org/mdn/vendor/packages/Django/django/core/cache/backends/memcached.py", line 48, in get
    val = self._cache.get(smart_str(key))

  File "/data/www/django/developer.mozilla.org/mdn/vendor/packages/python-memcached/memcache.py", line 779, in get
    return self._get('get', key)

  File "/data/www/django/developer.mozilla.org/mdn/vendor/packages/python-memcached/memcache.py", line 747, in _get
    self.check_key(key)

  File "/data/www/django/developer.mozilla.org/mdn/vendor/packages/python-memcached/memcache.py", line 940, in check_key
    % self.server_max_key_length)

MemcachedKeyLengthError: Key length is > 250

Comment 1

[Les Orchard [:lorchard]]

https://github.com/mozilla/kuma/commit/727ebf85cee19abc32f1c8e2f4cc0138e8b1a9bd
https://github.com/fwenzel/mdn/commit/8bde8b8ea27b64b7ece18c9e77eabf35d08072e1

Comment 2

[Stephen Donner [:stephend] Not actively reading bugmail]

Verified FIXED on https://developer-stage.mozilla.org/en-US/demos/profile/[e-mail]?sort=%3Cscript%3Evar+pf_68747470733a2f2f646576656c6f7065722d73746167652e6d6f7a696c6c612e6f72672f656e2d55532f64656d6f732f70726f66696c652f6d636f61746573406d6f7a696c6c612e636f6d_736f7274=new+Boolean%28%29;%3C/script%3E

(verified-stage, per Raymond)