# Logstash - UNEXPECTED POOL ERROR

**URL:** <https://discuss.elastic.co/t/logstash-unexpected-pool-error/121524>\
**Category:** Logstash\
**Created:** [February 26, 2018, 4:32pm UTC](https://discuss.elastic.co/t/logstash-unexpected-pool-error/121524 "2018-02-26T16:32:15Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![przemolb](https://avatars.discourse-cdn.com/v4/letter/p/a9adbd/32.png) [@przemolb](https://discuss.elastic.co/u/przemolb)\
**Post date:** [February 26, 2018, 4:32pm UTC](https://discuss.elastic.co/t/logstash-unexpected-pool-error/121524/1 "2018-02-26T16:32:15Z")

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```
[2018-02-26T16:28:52,669][WARN][logstash.outputs.elasticsearch] UNEXPECTED POOL ERROR {:e=>#<LogStash::Outputs::ElasticSearch::HttpClient::Pool::NoConnectionAvailableError: No Available connections>}
[2018-02-26T16:28:52,669][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=>8}

```

But I can get to elasticsearch port:

```
telnet our-elk-server 9200
Trying 10.240.1.4...
Connected to our-elk-server.
Escape character is '^]'.
^]
telnet> Connection closed.
```

---

<div class="post-metadata">

**Author:** ![przemolb](https://avatars.discourse-cdn.com/v4/letter/p/a9adbd/32.png) [@przemolb](https://discuss.elastic.co/u/przemolb)\
**Post date:** [February 26, 2018, 5:33pm UTC](https://discuss.elastic.co/t/logstash-unexpected-pool-error/121524/2 "2018-02-26T17:33:22Z")

</div>

All the configuration files are here:

> <https://gist.github.com/anonymous/f6f08cfd590fc12b58af31ca725c0ee7>
>
> There are more than three files. show original

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [March 26, 2018, 5:33pm UTC](https://discuss.elastic.co/t/logstash-unexpected-pool-error/121524/3 "2018-03-26T17:33:35Z")

</div>

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