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使用Django Storage和S3在collectstatic上的MemcachedError

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我在Heroku上部署了一个简单的Django应用程序 . 当我运行 collectstatic 将静态文件上传到S3时，我收到以下错误：

Traceback (most recent call last):
  File "appname/manage.py", line 11, in 
    execute_from_command_line(sys.argv)
  File "/app/.heroku/python/lib/python2.7/site-packages/django/core/management/__init__.py", line 399, in execute_from_command_line
    utility.execute()
  File "/app/.heroku/python/lib/python2.7/site-packages/django/core/management/__init__.py", line 392, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/app/.heroku/python/lib/python2.7/site-packages/django/core/management/base.py", line 242, in run_from_argv
    self.execute(*args, **options.__dict__)
  File "/app/.heroku/python/lib/python2.7/site-packages/django/core/management/base.py", line 285, in execute
    output = self.handle(*args, **options)
  File "/app/.heroku/python/lib/python2.7/site-packages/django/core/management/base.py", line 415, in handle
    return self.handle_noargs(**options)
  File "/app/.heroku/python/lib/python2.7/site-packages/collectfast/management/commands/collectstatic.py", line 135, in handle_noargs
    collected = self.collect()
  File "/app/.heroku/python/lib/python2.7/site-packages/collectfast/management/commands/collectstatic.py", line 33, in collect
    ret = super(Command, self).collect(*args, **kwargs)
  File "/app/.heroku/python/lib/python2.7/site-packages/django/contrib/staticfiles/management/commands/collectstatic.py", line 111, in collect
    handler(path, prefixed_path, storage)
  File "/app/.heroku/python/lib/python2.7/site-packages/collectfast/management/commands/collectstatic.py", line 92, in copy_file
    self.destroy_lookup(prefixed_path)
  File "/app/.heroku/python/lib/python2.7/site-packages/collectfast/management/commands/collectstatic.py", line 61, in destroy_lookup
    cache.delete(self.get_cache_key(path))
  File "/app/.heroku/python/lib/python2.7/site-packages/django/core/cache/backends/memcached.py", line 86, in delete
    self._cache.delete(key)
_pylibmc.MemcachedError: error 47 from memcached_delete(:1:collectfast_asset_dc44a7965f7): SERVER HAS FAILED AND IS DISABLED UNTIL TIMED RETRY, host: 127.0.0.1:11211 -> libmemcached/connect.cc:592

在heroku上设置以下env变量：

BUILDPACK_URL:
DATABASE_URL:
DJANGO_AWS_ACCESS_KEY_ID:
DJANGO_AWS_SECRET_ACCESS_KEY:
DJANGO_AWS_STORAGE_BUCKET_NAME:
DJANGO_CONFIGURATION:
DJANGO_SECRET_KEY:
HEROKU_POSTGRESQL_CRIMSON_URL:
MEMCACHIER_PASSWORD:
MEMCACHIER_SERVERS:
MEMCACHIER_USERNAME:
PGBACKUPS_URL:
SENDGRID_PASSWORD:
SENDGRID_USERNAME:

几天来，我一直在努力解决这个问题 . 昨天，我意识到其中一个env变量有一个拼写错误的副本 . 删除拼写错误的env变量后， collectstatic 命令工作正常，文件上传到S3 . 现在我正在使用另一个应用程序，无法让它工作 .

已存在具有相同名称的空S3存储桶 . 我尝试了用户特定的和帐户范围的AWS凭据，但都没有工作 .

django heroku amazon-s3 django-storage libmemcached

1 回答

  • 0

    我有同样的问题 . 我已经回复了相关的GitHub issue .

    为了完整性，这里是解决方案：

    首先将 django-pylibmc-sasl==0.2.4 添加到requirements.txt .

    然后在settings.py中替换文件末尾的“CACHING”部分：

    ########## CACHING

os.environ['MEMCACHE_SERVERS'] = os.environ.get('MEMCACHIER_SERVERS', '')
os.environ['MEMCACHE_USERNAME'] = os.environ.get('MEMCACHIER_USERNAME', '')
os.environ['MEMCACHE_PASSWORD'] = os.environ.get('MEMCACHIER_PASSWORD', '')

CACHES = {
  'default': {
    'BACKEND': 'django_pylibmc.memcached.PyLibMCCache',
    'LOCATION': os.environ.get('MEMCACHIER_SERVERS', ''),
    'TIMEOUT': 500,
    'BINARY': True,
    'OPTIONS': { 'tcp_nodelay': True }
  }
}

########## END CACHING

    它现在应该在Heroku上正常工作 .

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