Hi, after installing x-pack in logstash, I am receiving errors:
[ERROR] 2018-01-15 10:07:13.045 [monitoring-license-manager] licensemanager - Unable to retrieve license information from license server {:message=>"No Available connections", :class=>"LogStash::Outputs::ElasticSearch::HttpClient::Pool::NoConnectionAvailableError"}
No Available connections
I add xpack.monitoring.enabled: false to my logstash.yml configuration file. But it did not help. Can anybody help me  to remove this ERROR? I also add the line to elasticsearch.yml on all machines in elasticsearch cluster (version 6.1.1).