logstash connect timed out

[logstash.outputs.elasticsearch][main] Attempted to resurrect connection to dead ES instance, but got an error {:url=>"http://xxx.xxx.xxx.xxx:9200/", :exception=>LogStash::Outputs::ElasticSearch::HttpClient::Pool::HostUnreachableError, :message=>"Elasticsearch Unreachable: [http://xxx.xxx.xxx.xxx:9200/][Manticore::ConnectTimeout] connect timed out"}

logstash报connect timed out，居然是阿里云安全组没有配置9200端口开放访问，阿里云上安全组配置一下就可以