# Logstash warn log:Attempted to resurrect connection to dead ES instance, but got an error

**URL:** <https://discuss.elastic.co/t/logstash-warn-log-attempted-to-resurrect-connection-to-dead-es-instance-but-got-an-error/174701>\
**Category:** Logstash\
**Created:** [April 1, 2019, 2:46am UTC](https://discuss.elastic.co/t/logstash-warn-log-attempted-to-resurrect-connection-to-dead-es-instance-but-got-an-error/174701 "2019-04-01T02:46:46Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![ly217](https://avatars.discourse-cdn.com/v4/letter/l/41988e/32.png) [@ly217](https://discuss.elastic.co/u/ly217)\
**Post date:** [April 1, 2019, 2:46am UTC](https://discuss.elastic.co/t/logstash-warn-log-attempted-to-resurrect-connection-to-dead-es-instance-but-got-an-error/174701/1 "2019-04-01T02:46:46Z")

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The logstash always logging this warn log.I want some help .

[2019-04-01T10:42:20,243][WARN][logstash.outputs.elasticsearch] Attempted to resurrect connection to dead ES instance, but got an error. {:url=\>"[http://es-35:9200/](http://es-35:9200/)", :error\_type=\>LogStash::Outputs::ElasticSearch::HttpClient::Pool::HostUnreachableError, :error=\>"Elasticsearch Unreachable: [[http://es-35:9200/](http://es-35:9200/)][Manticore::ResolutionFailure] es-35"}  
[2019-04-01T10:42:25,251][WARN][logstash.outputs.elasticsearch] Attempted to resurrect connection to dead ES instance, but got an error. {:url=\>"[http://es-30:9200/](http://es-30:9200/)", :error\_type=\>LogStash::Outputs::ElasticSearch::HttpClient::Pool::HostUnreachableError, :error=\>"Elasticsearch Unreachable: [[http://es-30:9200/](http://es-30:9200/)][Manticore::ResolutionFailure] es-30"}  
[2019-04-01T10:42:25,251][WARN][logstash.outputs.elasticsearch] Attempted to resurrect connection to dead ES instance, but got an error. {:url=\>"[http://es-30:9200/](http://es-30:9200/)", :error\_type=\>LogStash::Outputs::ElasticSearch::HttpClient::Pool::HostUnreachableError, :error=\>"Elasticsearch Unreachable: [[http://es-30:9200/](http://es-30:9200/)][Manticore::ResolutionFailure] es-30"}  
[2019-04-01T10:42:25,255][WARN][logstash.outputs.elasticsearch] Attempted to resurrect connection to dead ES instance, but got an error. {:url=\>"[http://es-35:9200/](http://es-35:9200/)", :error\_type=\>LogStash::Outputs::ElasticSearch::HttpClient::Pool::HostUnreachableError, :error=\>"Elasticsearch Unreachable: [[http://es-35:9200/](http://es-35:9200/)][Manticore::ResolutionFailure] es-35"}  
[2019-04-01T10:42:25,255][WARN][logstash.outputs.elasticsearch] Attempted to resurrect connection to dead ES instance, but got an error. {:url=\>"[http://es-35:9200/](http://es-35:9200/)", :error\_type=\>LogStash::Outputs::ElasticSearch::HttpClient::Pool::HostUnreachableError, :error=\>"Elasticsearch Unreachable: [[http://es-35:9200/](http://es-35:9200/)][Manticore::ResolutionFailure] es-35"}  
[2019-04-01T10:42:30,278][WARN][logstash.outputs.elasticsearch] Attempted to resurrect connection to dead ES instance, but got an error. {:url=\>"[http://es-30:9200/](http://es-30:9200/)", :error\_type=\>LogStash::Outputs::ElasticSearch::HttpClient::Pool::HostUnreachableError, :error=\>"Elasticsearch Unreachable: [[http://es-30:9200/](http://es-30:9200/)][Manticore::ResolutionFailure] es-30: Temporary failure in name resolution"}  
[2019-04-01T10:42:30,280][WARN][logstash.outputs.elasticsearch] Attempted to resurrect connection to dead ES instance, but got an error. {:url=\>"[http://es-30:9200/](http://es-30:9200/)", :error\_type=\>LogStash::Outputs::ElasticSearch::HttpClient::Pool::HostUnreachableError, :error=\>"Elasticsearch Unreachable: [[http://es-30:9200/](http://es-30:9200/)][Manticore::ResolutionFailure] es-30"}  
[2019-04-01T10:42:30,293][WARN][logstash.outputs.elasticsearch] Attempted to resurrect connection to dead ES instance, but got an error. {:url=\>"[http://es-35:9200/](http://es-35:9200/)", :error\_type=\>LogStash::Outputs::ElasticSearch::HttpClient::Pool::HostUnreachableError, :error=\>"Elasticsearch Unreachable: [[http://es-35:9200/](http://es-35:9200/)][Manticore::ResolutionFailure] es-35: Temporary failure in name resolution"}  
[2019-04-01T10:42:30,295][WARN][logstash.outputs.elasticsearch] Attempted to resurrect connection to dead ES instance, but got an error. {:url=\>"[http://es-35:9200/](http://es-35:9200/)", :error\_type=\>LogStash::Outputs::ElasticSearch::HttpClient::Pool::HostUnreachableError, :error=\>"Elasticsearch Unreachable: [[http://es-35:9200/](http://es-35:9200/)][Manticore::ResolutionFailure] es-35"}  
[2019-04-01T10:42:35,308][WARN][logstash.outputs.elasticsearch] Attempted to resurrect connection to dead ES instance, but got an error. {:url=\>"[http://es-30:9200/](http://es-30:9200/)", :error\_type=\>LogStash::Outputs::ElasticSearch::HttpClient::Pool::HostUnreachableError, :error=\>"Elasticsearch Unreachable: [[http://es-30:9200/](http://es-30:9200/)][Manticore::ResolutionFailure] es-30"}  
[2019-04-01T10:42:35,308][WARN][logstash.outputs.elasticsearch] Attempted to resurrect connection to dead ES instance, but got an error. {:url=\>"[http://es-30:9200/](http://es-30:9200/)", :error\_type=\>LogStash::Outputs::ElasticSearch::HttpClient::Pool::HostUnreachableError, :error=\>"Elasticsearch Unreachable: [[http://es-30:9200/](http://es-30:9200/)][Manticore::ResolutionFailure] es-30"}  
[2019-04-01T10:42:35,312][WARN][logstash.outputs.elasticsearch] Attempted to resurrect connection to dead ES instance, but got an error. {:url=\>"[http://es-35:9200/](http://es-35:9200/)", :error\_type=\>LogStash::Outputs::ElasticSearch::HttpClient::Pool::HostUnreachableError, :error=\>"Elasticsearch Unreachable: [[http://es-35:9200/](http://es-35:9200/)][Manticore::ResolutionFailure] es-35"}  
[2019-04-01T10:42:35,314][WARN][logstash.outputs.elasticsearch] Attempted to resurrect connection to dead ES instance, but got an error. {:url=\>"[http://es-35:9200/](http://es-35:9200/)", :error\_type=\>LogStash::Outputs::ElasticSearch::HttpClient::Pool::HostUnreachableError, :error=\>"Elasticsearch Unreachable: [[http://es-35:9200/](http://es-35:9200/)][Manticore::ResolutionFailure] es-35"}  
[2019-04-01T10:42:40,331][WARN][logstash.outputs.elasticsearch] Attempted to resurrect connection to dead ES instance, but got an error. {:url=\>"[http://es-30:9200/](http://es-30:9200/)", :error\_type=\>LogStash::Outputs::ElasticSearch::HttpClient::Pool::HostUnreachableError, :error=\>"Elasticsearch Unreachable: [[http://es-30:9200/](http://es-30:9200/)][Manticore::ResolutionFailure] es-30: Temporary failure in name resolution"}  
[2019-04-01T10:42:40,331][WARN][logstash.outputs.elasticsearch] Attempted to resurrect connection to dead ES instance, but got an error. {:url=\>"[http://es-30:9200/](http://es-30:9200/)", :error\_type=\>LogStash::Outputs::ElasticSearch::HttpClient::Pool::HostUnreachableError, :error=\>"Elasticsearch Unreachable: [[http://es-30:9200/](http://es-30:9200/)][Manticore::ResolutionFailure] es-30"}  
[2019-04-01T10:42:40,347][WARN][logstash.outputs.elasticsearch] Attempted to resurrect connection to dead ES instance, but got an error. {:url=\>"[http://es-35:9200/](http://es-35:9200/)", :error\_type=\>LogStash::Outputs::ElasticSearch::HttpClient::Pool::HostUnreachableError, :error=\>"Elasticsearch Unreachable: [[http://es-35:9200/](http://es-35:9200/)][Manticore::ResolutionFailure] es-35"}  
[2019-04-01T10:42:40,347][WARN][logstash.outputs.elasticsearch] Attempted to resurrect connection to dead ES instance, but got an error. {:url=\>"[http://es-35:9200/](http://es-35:9200/)", :error\_type=\>LogStash::Outputs::ElasticSearch::HttpClient::Pool::HostUnreachableError, :error=\>"Elasticsearch Unreachable: [[http://es-35:9200/](http://es-35:9200/)][Manticore::ResolutionFailure] es-35: Temporary failure in name resolution"}

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [April 29, 2019, 2:46am UTC](https://discuss.elastic.co/t/logstash-warn-log-attempted-to-resurrect-connection-to-dead-es-instance-but-got-an-error/174701/2 "2019-04-29T02:46:55Z")

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