django - 干草堆 : KeyError in the elasticsearch_backend module

Question

我正在使用 Django + Haystack + Elasticsearch。

当我向这个 View 发送请求时

from haystack.views import FacetedSearchView

from .models import Object


class ObjectView(FacetedSearchView):

    def extra_context(self):
        extra = super(ObjectView, self).extra_context()

        if not self.results:
            extra['objects'] = Object.objects.all()
        else:
            searchqueryset = self.form.search()
            results = [ result.pk for result in searchqueryset ]
            extra['facets'] = self.results.facet_counts()
            extra['objects'] = Object.objects.filter(pk__in=results)
            extra['results'] = self.results
        return extra

引发此错误:

  File "/home/deploy/.virtualenvs/deploy/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 115, in get_response
    response = callback(request, *callback_args, **callback_kwargs)

  File "/home/deploy/.virtualenvs/deploy/local/lib/python2.7/site-packages/haystack/views.py", line 49, in __call__
    return self.create_response()

  File "/home/deploy/.virtualenvs/deploy/local/lib/python2.7/site-packages/haystack/views.py", line 129, in create_response
    (paginator, page) = self.build_page()

  File "/home/deploy/.virtualenvs/deploy/local/lib/python2.7/site-packages/haystack/views.py", line 106, in build_page
    self.results[start_offset:start_offset + self.results_per_page]

  File "/home/deploy/.virtualenvs/deploy/local/lib/python2.7/site-packages/haystack/query.py", line 266, in __getitem__
    self._fill_cache(start, bound)

  File "/home/deploy/.virtualenvs/deploy/local/lib/python2.7/site-packages/haystack/query.py", line 164, in _fill_cache
    results = self.query.get_results(**kwargs)

  File "/home/deploy/.virtualenvs/deploy/local/lib/python2.7/site-packages/haystack/backends/__init__.py", line 485, in get_results
    self.run(**kwargs)

  File "/home/deploy/.virtualenvs/deploy/local/lib/python2.7/site-packages/haystack/backends/elasticsearch_backend.py", line 942, in run
    results = self.backend.search(final_query, **search_kwargs)

  File "/home/deploy/.virtualenvs/deploy/local/lib/python2.7/site-packages/haystack/backends/__init__.py", line 26, in wrapper
    return func(obj, query_string, *args, **kwargs)

  File "/home/deploy/.virtualenvs/deploy/local/lib/python2.7/site-packages/haystack/backends/elasticsearch_backend.py", line 521, in search
    distance_point=kwargs.get('distance_point'), geo_sort=geo_sort)

  File "/home/deploy/.virtualenvs/deploy/local/lib/python2.7/site-packages/haystack/backends/elasticsearch_backend.py", line 571, in _process_results
    raw_suggest = raw_results['suggest']['suggest']

KeyError: 'suggest'

一个奇怪的事实:只有在项目处于生产设置时才会出现问题，即使我没有更改 settings_production 模块中涉及 Haystack 或 Elasticsearch 的任何内容(URL 键除外)。

项目/settings_production.py

'URL': 'http://0.0.0.0:9200/'

在生产中，我只使用一个简单的 FastCGI。

这就是真正困扰我的地方:有时我在这个 View 上没有任何错误，而且一切都很好......

拜托，有人知道发生了什么吗？

非常感谢!

更新:

所以，我在另一台计算机上设置了我的整个项目。经过一些测试，我验证了:

这个问题与我的生产设置无关
如上所述;

停止 Elasticsearch 服务时不会引发错误；

如果 服务是正在运行 :

当方法Object.objects.all()返回一些 QuerySet 结果，我没有错误；

当方法Object.objects.all()返回一个空的QuerySet，问题依旧；

我猜这是 Haystack 的 elasticsearch_backend 模块中的某种错误。

不过，我不确定。

Answer 1

是的，这是大海捞针中的一个错误。我已经输入了 pull request ，但与此同时，运行的选项是:

设置 INCLUDE_SPELLING在你的大海捞针设置到False , 或

使用我们的 fork :https://github.com/greenkahuna/django-haystack