# Logstash log **URL:** \ **Category:** Logstash\ **Created:** [February 13, 2018, 12:26pm UTC](https://discuss.elastic.co/t/logstash-log/119630 "2018-02-13T12:26:24Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![rattisyam](https://avatars.discourse-cdn.com/v4/letter/r/e9a140/32.png) [@rattisyam](https://discuss.elastic.co/u/rattisyam)\ **Post date:** [February 13, 2018, 12:26pm UTC](https://discuss.elastic.co/t/logstash-log/119630/1 "2018-02-13T12:26:25Z")
Hi team, below is the error I am getting when i am running my conf file of logstash even though my elasticsearch server is reachable. Please help me on this error as i am new to ELK. Thank you. [2018-02-13T11:03:57,359][WARN][logstash.outputs.elasticsearch] UNEXPECTED POOL ERROR {:e=\>#\} [2018-02-13T11:03:57,359][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} [2018-02-13T11:03:57,456][INFO][logstash.outputs.elasticsearch] Running health check to see if an Elasticsearch connection is working {:healthcheck\_url=\>[http://52.207.72.107:9200/](http://52.207.72.107:9200/), :path=\>"/"} root@ip-172-31-43-243:/var/log/logstash# cat logstash-plain.log | tail -10 [2018-02-13T12:21:11,974][INFO][logstash.outputs.elasticsearch] Running health check to see if an Elasticsearch connection is working {:healthcheck\_url=\>[http://54.208.46.115:9200/](http://54.208.46.115:9200/), :path=\>"/"} [2018-02-13T12:21:12,378][WARN][logstash.outputs.elasticsearch] Attempted to resurrect connection to dead ES instance, but got an error. {:url=\>"[http://54.89.237.179:9200/](http://54.89.237.179:9200/)", :error\_type=\>LogStash::Outputs::ElasticSearch::HttpClient::Pool::HostUnreachableError, :error=\>"Elasticsearch Unreachable: [[http://54.89.237.179:9200/](http://54.89.237.179:9200/)][Manticore::ConnectTimeout] connect timed out"} [2018-02-13T12:21:13,378][INFO][logstash.outputs.elasticsearch] Running health check to see if an Elasticsearch connection is working {:healthcheck\_url=\>[http://54.89.237.179:9200/](http://54.89.237.179:9200/), :path=\>"/"} [2018-02-13T12:21:13,413][WARN][logstash.outputs.elasticsearch] Attempted to resurrect connection to dead ES instance, but got an error. {:url=\>"[http://54.88.145.244:9200/](http://54.88.145.244:9200/)", :error\_type=\>LogStash::Outputs::ElasticSearch::HttpClient::Pool::HostUnreachableError, :error=\>"Elasticsearch Unreachable: [[http://54.88.145.244:9200/](http://54.88.145.244:9200/)][Manticore::ConnectTimeout] connect timed out"} [2018-02-13T12:21:13,644][WARN][logstash.outputs.elasticsearch] Attempted to resurrect connection to dead ES instance, but got an error. {:url=\>"[http://52.0.9.221:9200/](http://52.0.9.221:9200/)", :error\_type=\>LogStash::Outputs::ElasticSearch::HttpClient::Pool::HostUnreachableError, :error=\>"Elasticsearch Unreachable: [[http://52.0.9.221:9200/](http://52.0.9.221:9200/)][Manticore::ConnectTimeout] connect timed out"} [2018-02-13T12:21:14,413][INFO][logstash.outputs.elasticsearch] Running health check to see if an Elasticsearch connection is working {:healthcheck\_url=\>[http://54.88.145.244:9200/](http://54.88.145.244:9200/), :path=\>"/"} [2018-02-13T12:21:14,644][INFO][logstash.outputs.elasticsearch] Running health check to see if an Elasticsearch connection is working {:healthcheck\_url=\>[http://52.0.9.221:9200/](http://52.0.9.221:9200/), :path=\>"/"} [2018-02-13T12:21:15,337][WARN][logstash.outputs.elasticsearch] Attempted to resurrect connection to dead ES instance, but got an error. {:url=\>"[http://52.207.72.107:9200/](http://52.207.72.107:9200/)", :error\_type=\>LogStash::Outputs::ElasticSearch::HttpClient::Pool::HostUnreachableError, :error=\>"Elasticsearch Unreachable: [[http://52.207.72.107:9200/](http://52.207.72.107:9200/)][Manticore::ConnectTimeout] connect timed out"} [2018-02-13T12:21:16,337][INFO][logstash.outputs.elasticsearch] Running health check to see if an Elasticsearch connection is working {:healthcheck\_url=\>[http://52.207.72.107:9200/](http://52.207.72.107:9200/), :path=\>"/"} [2018-02-13T12:21:22,023][WARN][logstash.outputs.elasticsearch] Attempted to resurrect connection to dead ES instance, but got an error. {:url=\>"[http://54.208.46.115:9200/](http://54.208.46.115:9200/)", :error\_type=\>LogStash::Outputs::ElasticSearch::HttpClient::Pool::HostUnreachableError, :error=\>"Elasticsearch Unreachable: [[http://54.208.46.115:9200/](http://54.208.46.115:9200/)][Manticore::ConnectTimeout] connect timed out"} root@ip-172-31-43-243:/var/log/logstash# clear ---
**Author:** ![wwalker](https://avatars.discourse-cdn.com/v4/letter/w/43a26b/32.png) [@wwalker](https://discuss.elastic.co/u/wwalker)\ **Post date:** [February 13, 2018, 9:59pm UTC](https://discuss.elastic.co/t/logstash-log/119630/2 "2018-02-13T21:59:46Z")
Can you post your ElasticSearch and Logstash pipeline configs? ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [March 13, 2018, 10:00pm UTC](https://discuss.elastic.co/t/logstash-log/119630/3 "2018-03-13T22:00:25Z")
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