python - AWS Elasticsearch 错误 "[Errno 8] nodename nor servname provided, or not known."

Question

我创建了一个 AWS elasticsearch 实例。我想使用 python 脚本访问它。我指定了我的 AWS 配置(访问 key 、 key 、区域)。我正在使用以下代码访问 AWS ES 实例:

from elasticsearch import Elasticsearch, RequestsHttpConnection
from requests_aws4auth import AWS4Auth

AWS_ACCESS_KEY = '**************'
AWS_SECRET_KEY = '*****************'
region = 'us-east-1'
service = 'es'

awsauth = AWS4Auth(AWS_ACCESS_KEY, AWS_SECRET_KEY, region, service)

host = 'https://kbckjsdkcdn.us-east-1.es.amazonaws.com' # For example, my-test-domain.us-east-1.es.amazonaws.com

es = Elasticsearch(
    hosts = [{'host': host, 'port': 443}],
    http_auth = awsauth,
    use_ssl = True,
    verify_certs = True,
    connection_class = RequestsHttpConnection
)

print es.info()

当我运行上面的代码时，出现以下错误:

elasticsearch.exceptions.ConnectionError:  ConnectionError(HTTPSConnectionPool(host='https', port=443): Max retries exceeded with url: //search-opendata-2xd6pwilq5sv4ahomcuaiyxmqe.us-east-1.es.amazonaws.com:443/ (Caused by NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0x10ee72310>: Failed to establish a new connection: [Errno 8] nodename nor servname provided, or not known',))) caused by: ConnectionError(HTTPSConnectionPool(host='https', port=443): Max retries exceeded with url: //search-opendata-2xd6pwilq5sv4ahomcuaiyxmqe.us-east-1.es.amazonaws.com:443/ (Caused by NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0x10ee72310>: Failed to establish a new connection: [Errno 8] nodename nor servname provided, or not known',)))

我该如何解决这个错误？

谢谢

Answer 1

Failed to establish a new connection: [Errno 8] nodename nor servname provided, or not known 似乎表明 elasticsearch 客户端无法解析主机名。这可能是因为您包含了主机中指定的协议(protocol) https://。

将该行更改为 host = 'kbckjsdkcdn.us-east-1.es.amazonaws.com' 以查看它是否有效。此外，您在那里的示例评论似乎表明该协议(protocol)不应包含在主机变量中。