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我在生产环境中不断收到来自 sorl-thumbnail 的奇怪错误（使用 Sentry 作为记录器）。他们都只是说Thumbnail tag failed:（这非常有帮助），而且他们都来自三个模块之一。

奇怪的是，它实际上并没有影响网站。页面加载正常，甚至缩略图加载正常。这真的只是一个问题，因为我厌倦了看到错误出现在我的 Sentry 仪表板的列表中。但是，我无法弄清楚为什么会产生错误，或者如何修复它们。我开始怀疑它们是否不仅仅是标准行为与过于冗长的日志记录混合在一起，因为就像我说的那样，对网站没有明显的影响。

也许这里的某个人可以更清楚地了解它，所以这里是堆栈跟踪。

更新#1

对于来自 的那个sorl.thumbnail.engines.pil_engine._orientation，我找到了以下可能的候选人：http ://blog.yawd.eu/2012/fix-sorlthumbnail-engines-pil-orientation-error/

来自sorl.thumbnail.images.deserialize_image_file：

Thumbnail tag failed:

Stacktrace (most recent call last):

  File "sorl/thumbnail/templatetags/thumbnail.py", line 49, in render
    logger.error('Thumbnail tag failed:', exc_info=sys.exc_info())

  File "sorl/thumbnail/templatetags/thumbnail.py", line 97, in _render
    file_, geometry, **options

  File "sorl/thumbnail/base.py", line 65, in get_thumbnail
    default.kvstore.get_or_set(source)

  File "sorl/thumbnail/kvstores/base.py", line 46, in get_or_set
    cached = self.get(image_file)

  File "sorl/thumbnail/kvstores/base.py", line 25, in get
    return self._get(image_file.key)

  File "sorl/thumbnail/kvstores/base.py", line 127, in _get
    return deserialize_image_file(value)

  File "sorl/thumbnail/images.py", line 31, in deserialize_image_file
    data = simplejson.loads(s)

  File "simplejson/__init__.py", line 428, in loads
    return _default_decoder.decode(s)

  File "simplejson/decoder.py", line 402, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())

  File "simplejson/decoder.py", line 420, in raw_decode
    raise JSONDecodeError("No JSON object could be decoded", s, idx)

来自sorl.thumbnail.images.read：

Thumbnail tag failed:

Stacktrace (most recent call last):

  File "sorl/thumbnail/templatetags/thumbnail.py", line 49, in render
    logger.error('Thumbnail tag failed:', exc_info=sys.exc_info())

  File "sorl/thumbnail/templatetags/thumbnail.py", line 97, in _render
    file_, geometry, **options

  File "sorl/thumbnail/base.py", line 56, in get_thumbnail
    source_image = default.engine.get_image(source)

  File "sorl/thumbnail/engines/pil_engine.py", line 12, in get_image
    buf = StringIO(source.read())

  File "sorl/thumbnail/images.py", line 121, in read
    return self.storage.open(self.name).read()

  File "django/core/files/storage.py", line 33, in open
    file = self._open(name, mode)

  File "django/core/files/storage.py", line 159, in _open
    return File(open(self.path(name), mode))

来自sorl.thumbnail.engines.pil_engine._orientation：

Thumbnail tag failed:

Stacktrace (most recent call last):

  File "sorl/thumbnail/templatetags/thumbnail.py", line 49, in render
    logger.error('Thumbnail tag failed:', exc_info=sys.exc_info())

  File "sorl/thumbnail/templatetags/thumbnail.py", line 97, in _render
    file_, geometry, **options

  File "sorl/thumbnail/base.py", line 61, in get_thumbnail
    thumbnail)

  File "sorl/thumbnail/base.py", line 86, in _create_thumbnail
    image = default.engine.create(source_image, geometry, options)

  File "sorl/thumbnail/engines/base.py", line 15, in create
    image = self.orientation(image, geometry, options)

  File "sorl/thumbnail/engines/base.py", line 26, in orientation
    return self._orientation(image)

  File "sorl/thumbnail/engines/pil_engine.py", line 31, in _orientation
    exif = None

  File "PIL/JpegImagePlugin.py", line 381, in _getexif
    info.load(file)

  File "PIL/TiffImagePlugin.py", line 382, in load
    raise IOError, "not enough data"
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1 回答 1

3

我在本地工作时遇到了这个问题。在我运行管理命令后它似乎停止了：

python manage.py thumbnail clear

其次是

python manage.py thumbnail cleanup
于 2012-09-12T16:16:32.597 回答