# Logstash (Center) connection refused (solved) **URL:** \ **Category:** Logstash\ **Created:** [August 18, 2015, 7:26am UTC](https://discuss.elastic.co/t/logstash-center-connection-refused-solved/27557 "2015-08-18T07:26:17Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Jason\_Zheng](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jason_zheng/32/4041_2.png) [@Jason\_Zheng](https://discuss.elastic.co/u/Jason_Zheng)\ **Post date:** [August 18, 2015, 7:26am UTC](https://discuss.elastic.co/t/logstash-center-connection-refused-solved/27557/1 "2015-08-18T07:26:17Z")
Hi All, My logstash conf (center) setting as following, is it incorrect? ``` input { redis { host => "redis" port => 6379 type => "redis-input" data_type => "list" key => "miki" } } output { stdout { codec => rubydebug } elasticsearch { host => "elasticsearch" codec => "json" protocol => "http" user => "es_admin" password => "iiiiii" } } ``` Found some errors like ``` > {:timestamp=>"2015-08-18T15:21:10.492000+0800", :message=>"Failed to flush outgoing items", :outgoing_count=>21, :exception=>#, :backtrace=>["/opt/logstash/vendor/bundle/jruby/1.9/gems/manticore-0.4.1-java/lib/manticore/response.rb:35:in `initialize'", "org/jruby/RubyProc.java:271:in `call'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/manticore-0.4.1-java/lib/manticore/response.rb:61:in `call'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/manticore-0.4.1-java/lib/manticore/response.rb:225:in `call_once'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/manticore-0.4.1-java/lib/manticore/response.rb:128:in `code'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/elasticsearch-transport-1.0.12/lib/elasticsearch/transport/transport/http/manticore.rb:71:in `perform_request'", "org/jruby/RubyProc.java:271:in `call'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/elasticsearch-transport-1.0.12/lib/elasticsearch/transport/transport/base.rb:190:in `perform_request'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/elasticsearch-transport-1.0.12/lib/elasticsearch/transport/transport/http/manticore.rb:54:in `perform_request'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/elasticsearch-transport-1.0.12/lib/elasticsearch/transport/client.rb:119:in `perform_request'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/elasticsearch-api-1.0.12/lib/elasticsearch/api/actions/bulk.rb:80:in `bulk'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-output-elasticsearch-1.0.1-java/lib/logstash/outputs/elasticsearch/protocol.rb:103:in `bulk'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-output-elasticsearch-1.0.1-java/lib/logstash/outputs/elasticsearch.rb:505:in `submit'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-output-elasticsearch-1.0.1-java/lib/logstash/outputs/elasticsearch.rb:504:in `submit'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-output-elasticsearch-1.0.1-java/lib/logstash/outputs/elasticsearch.rb:529:in `flush'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-output-elasticsearch-1.0.1-java/lib/logstash/outputs/elasticsearch.rb:528:in `flush'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/stud-0.0.20/lib/stud/buffer.rb:219:in `buffer_flush'", "org/jruby/RubyHash.java:1341:in `each'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/stud-0.0.20/lib/stud/buffer.rb:216:in `buffer_flush'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/stud-0.0.20/lib/stud/buffer.rb:112:in `buffer_initialize'", "org/jruby/RubyKernel.java:1511:in `loop'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/stud-0.0.20/lib/stud/buffer.rb:110:in `buffer_initialize'"], :level=>:warn} > {:timestamp=>"2015-08-18T15:21:11.497000+0800", :message=>"Got error to send bulk of actions: Connection refused", :level=>:error} ``` Jason ---
**Author:** ![magnusbaeck](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/magnusbaeck/32/44943_2.png) [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)\ **Post date:** [August 18, 2015, 7:34am UTC](https://discuss.elastic.co/t/logstash-center-connection-refused-solved/27557/2 "2015-08-18T07:34:58Z")
There's nobody answering on elasticsearch:9200 when Logstash tries to connect (or there's a firewall blocking the connections). Is Elasticsearch actually running on that host? ---
**Author:** ![Jason\_Zheng](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jason_zheng/32/4041_2.png) [@Jason\_Zheng](https://discuss.elastic.co/u/Jason_Zheng)\ **Post date:** [August 18, 2015, 9:44am UTC](https://discuss.elastic.co/t/logstash-center-connection-refused-solved/27557/3 "2015-08-18T09:44:44Z")
Hi Magnus, Yes, elasticsearch actually running on my host, ``` [2015-08-18 17:10:46,246][INFO][http] [elknode] bound_address {inet[/0:0:0:0:0:0:0:0:9200]}, publish_address {inet[/140.92.25.126:9200]} [2015-08-18 17:10:46,246][INFO][node] [elknode] started ``` All of the log(I am not sure) has been written to elasticsearch and I can search them by Kibana, but the connection refused error message has been printed everysecond in /var/log/logstash/logstash.log ---
**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\ **Post date:** [August 18, 2015, 10:39pm UTC](https://discuss.elastic.co/t/logstash-center-connection-refused-solved/27557/4 "2015-08-18T22:39:43Z")
What if you use `host => "140.92.25.126"` ---
**Author:** ![Jason\_Zheng](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jason_zheng/32/4041_2.png) [@Jason\_Zheng](https://discuss.elastic.co/u/Jason_Zheng)\ **Post date:** [August 19, 2015, 1:26am UTC](https://discuss.elastic.co/t/logstash-center-connection-refused-solved/27557/5 "2015-08-19T01:26:15Z")
Hi Mark, It can be work, thanks ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 5:31am UTC](https://discuss.elastic.co/t/logstash-center-connection-refused-solved/27557/6 "2017-07-06T05:31:36Z")