elasticsearch.js客户端连接被拒绝:无法识别Access-Control-Allow-Origin?

时间:2015-10-10 07:19:04

标签: jquery ajax apache localhost access-control

我一直在尝试使用elasticsearch.jquery.min.js ping一个本地运行的elasticsearch,我得到一个没有生活连接的#34;错误每次。

ETA:在Chrome中,我看到的内容看起来非常低级" Connection Refused"。我在MacOS X上进行开发,我的浏览器通过http://localhost/~myuserid/SiteName/指向该页面。因为我访问localhost:9200这明显属于跨域CORS要求。

我在Chrome控制台中看到以下错误:

XMLHttpRequest cannot load http://localhost:9200/?hello=elasticsearch!.
No 'Access-Control-Allow-Origin' header is present on the requested resource.
Origin 'http://localhost' is therefore not allowed access.

Per http://enable-cors.org/server_apache.html我已将以下内容添加到/etc/apache2/httpd.conf中:

<Directory />
    Header set Access-Control-Allow-Origin "localhost:9200"
    AllowOverride none
    Require all denied
</Directory>

并运行

$ sudo apachectl -t
$ sudo apachectl -k graceful

但错误仍然存​​在。还有另一种我忽视的环境吗?

我是elasticsearch.js的菜鸟。我需要在弹性搜索方面做些什么来允许来自浏览器的客户端连接,还是什么?

我在ping尝试中跟随the book

var client = new $.es.Client({
  hosts: 'localhost:9200'
  });

client.ping(
  {
    requestTimeout: Infinity,
    // undocumented params are appended to the query string
    hello: "elasticsearch!"
    },
  function (error) {
    if (error) {
      console.error('elasticsearch cluster is down!');
      console.error(error);
    } else {
      console.log('All is well');
      }
    }
  );

但我收到以下错误:

"WARNING: 2015-10-10T07:00:16Z"        elasticsearch.jquery.min.js:14:10575
  Unable to revive connection: http://localhost:9200/

"WARNING: 2015-10-10T07:00:16Z"        elasticsearch.jquery.min.js:14:10575
  No living connections

我可以在命令行上使用curl连接就好了,拉动和插入数据等:

$ curl "localhost:9200/_cat/indices?v"
health status index             pri rep docs.count docs.deleted store.size pri.store.size 

green  open   fuddle              1   0          3            0     12.9kb         12.9kb                                                
green  open   faddle              1   0          0            0       144b           144b 


<小时/>

ETA附加诊断。 Google Chrome会显示失败尝试的以下网络跟踪。在HTTP层,响应看起来就像是在发生。

General
  Remote Address:[::1]:9200
  Request URL:http://localhost:9200/?hello=elasticsearch!
  Request Method:HEAD
  Status Code:200 OK
Response Headers
  Content-Length:0
  Content-Type:text/plain; charset=UTF-8
Request Headers
  Accept:text/plain, */*; q=0.01
  Accept-Encoding:gzip, deflate, sdch
  Accept-Language:en-US,en;q=0.8
  Connection:keep-alive
  Content-Length:0
  Host:localhost:9200
  Origin:http://localhost
  Referer:http://localhost/~browsc3/Opticon/
  User-Agent:Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.101 Safari/537.36
Query String Parameters
  view URL encoded
  hello:elasticsearch!

wget中的相同请求:

wget http://localhost:9200/?hello=elasticsearch!
--2015-10-10 09:47:13--  http://localhost:9200/?hello=elasticsearch!
Resolving localhost... ::1, 127.0.0.1
Connecting to localhost|::1|:9200... connected.
HTTP request sent, awaiting response... 200 OK
Length: 342 [application/json]
Saving to: 'index.html?hello=elasticsearch!'

index.html?hello=elastics 100%[=====================================>]     342  --.-KB/s   in 0s     

2015-10-10 09:47:13 (65.2 MB/s) - 'index.html?hello=elasticsearch!' saved [342/342]

我真的不知道从哪里开始。我在googlz上看到了很多关于错误的引用,但没有一个情况看起来很相似。感觉我只是遇到了一些错误的配置,但我找不到任何可以表明它是什么的东西。

3 个答案:

答案 0 :(得分:22)

嗯,这是一个艰难的。

以下是解决问题的原因:

http://enable-cors.org/server_apache.html,在/etc/apache2/httpd.conf中,配置Access-Control-Allow-Origin:

<Directory />
    # Add the following line to enable CORS to connect to local elasticsearch.
    Header set Access-Control-Allow-Origin "localhost:9200"
    AllowOverride none
    Require all denied
</Directory>

https://jsbroadcast.com/elastic-search-cors/,在elasticsearch-1.7.0/config/elasticsearch.yml添加:

http.cors.enabled : true // 
http.cors.allow-origin: "/.*/"
http.cors.allow-methods : OPTIONS, HEAD, GET, POST, PUT, DELETE
http.cors.allow-headers : "X-Requested-With,X-Auth-Token,Content-Type, Content-Length, Authorization"

我现在可以毫无错误地运行client.ping来电。

答案 1 :(得分:4)

只需将其添加到elasticsearch.yml即可。

http.cors.enabled: true
http.cors.allow-origin: "/.*/"
http.cors.allow-methods: OPTIONS, HEAD, GET, POST, PUT, DELETE
http.cors.allow-headers: "X-Requested-With,X-Auth-Token,Content-Type,  Content-Length, Authorization"

您不需要向Apache添加任何内容。

答案 2 :(得分:2)

输入你的elasticsearch.yml配置文件,位于elasticsearch-xxx \ config \ elasticsearch.yml,下面一行

http.cors.enabled: true

并在您的互联网导航器中启用cors。 重新启动弹性搜索服务器,然后重试。