# Host down in hosts list

**URL:** <https://discuss.elastic.co/t/host-down-in-hosts-list/56933>\
**Category:** Logstash\
**Created:** [August 1, 2016, 9:39pm UTC](https://discuss.elastic.co/t/host-down-in-hosts-list/56933 "2016-08-01T21:39:39Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![stecino](https://avatars.discourse-cdn.com/v4/letter/s/ea666f/32.png) [@stecino](https://discuss.elastic.co/u/stecino)\
**Post date:** [August 1, 2016, 9:39pm UTC](https://discuss.elastic.co/t/host-down-in-hosts-list/56933/1 "2016-08-01T21:39:39Z")

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Hello,

What happens if a elastic search data node defined in the hosts list for elastic search output definition is down?  
Will I get an error can't connect to ES, or will it try to find available data node to make the connection to? Another words, do I have to change my config file every time i add or remove a data node from the cluster

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**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 1, 2016, 9:42pm UTC](https://discuss.elastic.co/t/host-down-in-hosts-list/56933/2 "2016-08-01T21:42:45Z")

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What version are you on?

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**Author:** ![stecino](https://avatars.discourse-cdn.com/v4/letter/s/ea666f/32.png) [@stecino](https://discuss.elastic.co/u/stecino)\
**Post date:** [August 1, 2016, 9:49pm UTC](https://discuss.elastic.co/t/host-down-in-hosts-list/56933/3 "2016-08-01T21:49:52Z")

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logstash 2.2.2 and ES 2.1.2

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**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 2, 2016, 5:24am UTC](https://discuss.elastic.co/t/host-down-in-hosts-list/56933/4 "2016-08-02T05:24:35Z")

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Take a look at [https://www.elastic.co/guide/en/logstash/current/plugins-outputs-elasticsearch.html#plugins-outputs-elasticsearch-hosts](https://www.elastic.co/guide/en/logstash/current/plugins-outputs-elasticsearch.html#plugins-outputs-elasticsearch-hosts)

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**Author:** ![stecino](https://avatars.discourse-cdn.com/v4/letter/s/ea666f/32.png) [@stecino](https://discuss.elastic.co/u/stecino)\
**Post date:** [August 2, 2016, 10:45pm UTC](https://discuss.elastic.co/t/host-down-in-hosts-list/56933/5 "2016-08-02T22:45:04Z")

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Its says it does load balancing, but does it mean that if a host down, then it will pick another host from the list to execute against? Or it will fail with that write?

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<div class="post-metadata">

**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 3, 2016, 2:04am UTC](https://discuss.elastic.co/t/host-down-in-hosts-list/56933/6 "2016-08-03T02:04:01Z")

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It will pick another.

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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:** [July 6, 2017, 4:45am UTC](https://discuss.elastic.co/t/host-down-in-hosts-list/56933/7 "2017-07-06T04:45:08Z")

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