# Logstash-elasticsearch output plugin issue(UNEXPECTED POOL ERROR)

**URL:** <https://discuss.elastic.co/t/logstash-elasticsearch-output-plugin-issue-unexpected-pool-error/64899>\
**Category:** Logstash\
**Created:** [November 3, 2016, 3:59pm UTC](https://discuss.elastic.co/t/logstash-elasticsearch-output-plugin-issue-unexpected-pool-error/64899 "2016-11-03T15:59:21Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![redrise](https://avatars.discourse-cdn.com/v4/letter/r/858c86/32.png) [@redrise](https://discuss.elastic.co/u/redrise)\
**Post date:** [November 10, 2016, 10:34am UTC](https://discuss.elastic.co/t/logstash-elasticsearch-output-plugin-issue-unexpected-pool-error/64899/7 "2016-11-10T10:34:09Z")

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I'm also seeing this issue. I don't have sniffing enabled (according to the Logstash documentation it's disabled by default right?) and I've made sure the nodes advertised address in my Elasticsearch config matches that of the address used in the Logstash elasticsearch output plugin. Are we missing some obvious config option somewhere?

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_[View the full topic](https://discuss.elastic.co/t/logstash-elasticsearch-output-plugin-issue-unexpected-pool-error/64899)._