Logstash 无法推送日志到 ES

Logstash Unable to push logs to ES

我正在从 NXlog 服务器收集日志并将其发送到我的 Logstash 服务器{AWS 机器上的 ELK Stack}。它能够完美地将日志发送到 ES,但它只是弯腰将日志发送到 ES,并出现以下错误:

{:timestamp=>"2015-10-13T06:41:25.526000+0000", :message=>"Got error to send bulk of actions: localhost:9200 failed to respond", :level=>:error}
{:timestamp=>"2015-10-13T06:41:25.531000+0000", :message=>"Failed to flush outgoing items", 
{:timestamp=>"2015-10-13T06:41:26.538000+0000", :message=>"Got error to send bulk of actions: Connection refused", :level=>:error}

这是安全组问题吗?还是别的?

此外,我的 logstash 输出文件如下所示:

output {
  stdout { }
  elasticsearch { host => "localhost" protocol => "http" port => "9200" }
}

我得到了答案,我的版本是 1.5,它有一个错误:(

https://github.com/elastic/logstash/issues/2894