I'm facing the weird error. Likely, this is the scenario.
- Start Ubuntu 16.04 on my VM
- Start elasticsearch, kibana using sudo service
- Verify in browser if everything is fine. I can see the right output on browser at the startup.
- Start the logstash with the below command
/usr/share/logstash/bin/logstash --path.settings /etc/logstash -f /etc/logstash/conf.d/console_worked.conf - When I check the logs, elasticsearch isn't working. Connection refused. In browser, localhost:9200 is not reachable. What might be the reason?
Since elasticsearch instance isn't running, i can't check _cluster/pending_tasks?pretty status.
Please help me in learning. I'm so struck.
[2017-04-18T16:52:37,749][INFO ][logstash.outputs.elasticsearch] Running health check to see if an Elasticsearch connection is working {:healthcheck_url=>http://localhost:9200/, :path=>"/"}
[2017-04-18T16:52:37,755][WARN ][logstash.outputs.elasticsearch] Attempted to resurrect connection to dead ES instance, but got an error. {:url=>#<URI::HTTP:0x3ec6624 URL:http://localhost:9200/>, :error_type=>LogStash::Outputs::ElasticSearch::HttpClient::Pool::HostUnreachableError, :error=>"Elasticsearch Unreachable: [http://localhost:9200/][Manticore::SocketException] Connection refused (Connection refused)"}
[2017-04-18T16:52:42,775][INFO ][logstash.outputs.elasticsearch] Running health check to see if an Elasticsearch connection is working {:healthcheck_url=>http://localhost:9200/, :path=>"/"}
[2017-04-18T16:52:42,783][WARN ][logstash.outputs.elasticsearch] Attempted to resurrect connection to dead ES instance, but got an error. {:url=>#<URI::HTTP:0x3ec6624 URL:http://localhost:9200/>, :error_type=>LogStash::Outputs::ElasticSearch::HttpClient::Pool::HostUnreachableError, :error=>"Elasticsearch Unreachable: [http://localhost:9200/][Manticore::SocketException] Connection refused (Connection refused)"}
[2017-04-18T17:02:02,373][WARN ][logstash.outputs.elasticsearch] UNEXPECTED POOL ERROR {:e=>#<LogStash::Outputs::ElasticSearch::HttpClient::Pool::NoConnectionAvailableError: No Available connections>}
[2017-04-18T17:02:02,378][ERROR][logstash.outputs.elasticsearch] Attempted to send a bulk request to elasticsearch, but no there are no living connections in the connection pool. Perhaps Elasticsearch is unreachable or down? {:error_message=>"No Available connections", :class=>"LogStash::Outputs::ElasticSearch::HttpClient::Pool::NoConnectionAvailableError", :will_retry_in_seconds=>64}