我只是不明白发生了什么。我的go应用程序无法连接到elasticsearch。该节点可用，已启动并正在运行。我在这里做错了什么？

import (
    "fmt"
    "github.com/olivere/elastic/v7"
    "github.com/sirupsen/logrus"
    "gitlab.com/codereverie/anuvadak-api-server/app_config"
    "gopkg.in/sohlich/elogrus.v7"
    "gopkg.in/validator.v2"
    "io"
    "os"
)

eurl := "http://ip:port"
eUsername := "username"
ePassword := "password"

client, err := elastic.NewClient(elastic.SetURL(eurl), elastic.SetBasicAuth(eUsername, ePassword))

if err != nil {
    fmt.Println("Some error", err.Error())
    panic("Failed to initialize elastic-search client")
}

这里有什么不对的地方？错误说no active connection found: no Elasticsearch node available

这是我在浏览器中命中GET请求时从elasticsearch返回的数据

  {
"name": "ABC-1",
"cluster_name": "ABC",
"cluster_uuid": "3oo05v6lSSmE7DpRh_68Yg",
"version": {
  "number": "7.6.2",
  "build_flavor": "default",
  "build_type": "deb",
  "build_hash": "ef48eb35cf30adf4db14086e8aabd07ef6fb113f",
  "build_date": "2020-03-26T06:34:37.794943Z",
  "build_snapshot": false,
  "lucene_version": "8.4.0",
  "minimum_wire_compatibility_version": "6.8.0",
  "minimum_index_compatibility_version": "6.0.0-beta1"
},
"tagline": "You Know, for Search"

}