使用 "django-elasticsearch-dsl" 将 ElasticSearch 连接到 Django 会在尝试 create/rebuild 索引时导致 ConnectionError

Connecting ElasticSearch to Django using "django-elasticsearch-dsl" results in ConnectionError when attempting to create/rebuild index

我正在尝试在 docker 上调用本地 ES 实例 运行。我使用以下说明来设置我的 ES 实例: https://www.elastic.co/guide/en/elasticsearch/reference/current/getting-started.html https://www.elastic.co/guide/en/elasticsearch/reference/current/docker.html#docker-cli-run-dev-mode

我可以在 http://0.0.0.0:5601/app/dev_tools#/console 上使用我在 Kibana 上的实例。到这里一切正常。

现在我正在尝试使用 Django 模型定义一些示例文档并通过库对它们进行索引;我按照此处的说明进行操作:https://django-elasticsearch-dsl.readthedocs.io/en/latest/quickstart.html#install-and-configure

首先,我安装了pip并添加了django_elasticsearch_dslINSTALLED_APPS

接下来,我在settings.py中添加:

ELASTICSEARCH_DSL = {
    'default': {
        'hosts': 'localhost:9200'
    },
}

然后我创建一个示例模型和文档,如下所示:

# models.py

from django.db import models

class Car(models.Model):
    name = models.CharField(max_length=30)
    color = models.CharField(max_length=30)
    description = models.TextField()
    type = models.IntegerField(choices=[
        (1, "Sedan"),
        (2, "Truck"),
        (4, "SUV"),
    ])
# documents.py

from django_elasticsearch_dsl import Document
from django_elasticsearch_dsl.registries import registry
from .models import Car

@registry.register_document
class CarDocument(Document):
    class Index:
        # Name of the Elasticsearch index
        name = 'cars'
        # See Elasticsearch Indices API reference for available settings
        settings = {'number_of_shards': 1,
                    'number_of_replicas': 0}

    class Django:
        model = Car # The model associated with this Document

        # The fields of the model you want to be indexed in Elasticsearch
        fields = [
            'name',
            'color',
            'description',
            'type',
        ]

最后,运行 python3 manage.py search_index --rebuild 导致以下连接错误:

    raise ConnectionError("N/A", str(e), e)
elasticsearch.exceptions.ConnectionError: ConnectionError(('Connection aborted.', RemoteDisconnected('Remote end closed connection without response'))) caused by: ProtocolError(('Connection aborted.', RemoteDisconnected('Remote end closed connection without response')))

我怀疑我的 ELASTICSEARCH_DSL 设置可能有问题,因为我没有为 https 指定任何配置,但文档没有说明这一点。

如何解决这个问题?

Django version: 
Django==4.0.1
django-elasticsearch-dsl==7.2.2

Python version: Python 3.9.10

谢谢!

我认为这是我的证书的问题。

我需要向 ELASTICSEARCH_DSL 变量添加一些额外的配置参数。添加这个可以解决问题:

from elasticsearch import RequestsHttpConnection

# Elasticsearch configuration in settings.py
ELASTICSEARCH_DSL = {
    'default': {
        'hosts': 'localhost:9200',
        'use_ssl': True,
        'http_auth': ('user', 'password'),
        'ca_certs': '/path/to/cert.crt'
        'connection_class': RequestsHttpConnection
    }
}

请参阅有关验证证书的弹性文档的 this section

如果您还没有设置证书来验证连接,只需要快速启动并 运行,您可以传递 'verify_certs': False 并将 'ca_certs' 设置为 None.