Django Tastypie POST响应慢

Question

我正在尝试实现一个Tastypie资源，这个资源允许根据每个用户的权限进行GET和POST操作。我的模型很简单（类似于Tastypie文档中的Note模型），资源本身也很简单，我只是多了一个override_urls的方法来实现使用Haystack进行搜索。

我现在面临的主要问题是，虽然在本地运行项目时一切正常，请求速度很快，但一旦我把项目部署到Linode上（使用Nginx、Gunicorn和Runit），我发现POST请求变得非常慢，返回201状态码大约需要1.1分钟。相比之下，GET请求则运行良好，表现如预期。

我在请求上运行了一个Python Hotshot分析工具，结果显示整个POST请求只消耗了0.127秒的CPU时间。我不太确定这里发生了什么。

我应该提到，我在我的Tastypie资源中使用了ApiKeyAuthentication和DjangoAuthorization。

这是来自Chrome检查器的请求截图：http://d.pr/i/CvCS

如果有人能给我指个方向，告诉我该往哪里找解决这个问题的答案，那就太好了。

谢谢！

编辑：

一些代码：

模型和资源：

class Note(models.Model):
    timestamp = models.DateTimeField('Timestamp')
    user = models.ForeignKey(User)
    page_title = models.CharField("Page Title", max_length=200)
    url = models.URLField('URL', verify_exists=False)
    summary = models.TextField("Summary")
    notes = models.TextField("Notes", null=True, blank=True)

    def __unicode__(self):
        return self.page_title

    def get_absolute_url(self):
        return self.url


class NoteResource(ModelResource):
    user = fields.ForeignKey(UserResource, 'user')

    class Meta:
        queryset = Note.objects.all()
        resource_name = 'note'
        list_allowed_methods = ['get', 'post']
        detail_allowed_methods = ['get']
        always_return_data = True
        authentication = ApiKeyAuthentication()
        authorization = DjangoAuthorization()
        # authentication = Authentication() #allows all access
        # authorization = Authorization() #allows all access

        ordering = [
            '-timestamp'
        ]

    def override_urls(self):
        return [
            url(r"^(?P<resource_name>%s)/search%s$" % (
                self._meta.resource_name, trailing_slash()),
                self.wrap_view('get_search'), name="api_get_search"),
        ]

    def obj_create(self, bundle, request=None, **kwargs):
        return super(NoteResource, self).obj_create(bundle,
                                                        request,
                                                        user=request.user)

    def apply_authorization_limits(self, request, object_list):
        return object_list.filter(user=request.user)

    def get_search(self, request, **kwargs):
        self.method_check(request, allowed=['get'])
        self.is_authenticated(request)

        sqs = SearchQuerySet().models(Note).filter(
                                        user=request.user
                                    ).auto_query(
                                        request.GET.get('q', '')
                                    )

        paginator = Paginator(sqs, 100)

        try:
            page = paginator.page(int(request.GET.get('page', 1)))
        except InvalidPage:
            raise Http404("Sorry, no results on that page.")

        objects = []

        for result in page.object_list:
            bundle = self.build_bundle(obj=result.object, request=request)
            bundle.data['score'] = result.score
            bundle = self.full_dehydrate(bundle)
            objects.append(bundle)

        object_list = {
            'objects': objects,
        }

        self.log_throttled_access(request)
        return self.create_response(request, object_list)

Gunicorn配置：

bind = "0.0.0.0:1330"
workers = 1

Nginx配置（包含在主nginx.conf中）：

server {
        listen 80;
        server_name domain.com example.com;
        access_log  /path/to/home/then/project/access.log;
        error_log /path/to/home/then/project/error.log;

        location / {
                proxy_pass   http://127.0.0.1:1330;
        }

        location /static/ {
                autoindex on;
                root /path/to/home/then/project/;
        }
}

django 性能优化 nginx POST请求 gunicorn haystack api认证 tastypie

Django Tastypie POST响应慢

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