# How many hosts I can list in logstash output **URL:** \ **Category:** Logstash\ **Created:** [September 24, 2021, 3:08pm UTC](https://discuss.elastic.co/t/how-many-hosts-i-can-list-in-logstash-output/285093 "2021-09-24T15:08:30Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![elasticforme](https://avatars.discourse-cdn.com/v4/letter/e/f05b48/32.png) [@elasticforme](https://discuss.elastic.co/u/elasticforme)\ **Post date:** [September 24, 2021, 3:08pm UTC](https://discuss.elastic.co/t/how-many-hosts-i-can-list-in-logstash-output/285093/1 "2021-09-24T15:08:30Z")
how many hosts I can list in output section of host part? can I use wildcard? something like this? hosts =\> ["host\_123\*"] ---
**Author:** ![aaron-nimocks](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/aaron-nimocks/32/73965_2.png) [@aaron-nimocks](https://discuss.elastic.co/u/aaron-nimocks)\ **Post date:** [September 25, 2021, 1:18pm UTC](https://discuss.elastic.co/t/how-many-hosts-i-can-list-in-logstash-output/285093/2 "2021-09-25T13:18:51Z")
> how many hosts I can list in output section of host part? I didn't see anywhere that would indicate a limit. > can I use wildcard? Doesn't appear so. ---
**Author:** ![zx8086](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/zx8086/32/94917_2.png) [@zx8086](https://discuss.elastic.co/u/zx8086)\ **Post date:** [September 25, 2021, 7:50pm UTC](https://discuss.elastic.co/t/how-many-hosts-i-can-list-in-logstash-output/285093/3 "2021-09-25T19:50:02Z")
Also if it appears to have a limit, you can specify a single host address and using a third party load-balancer like NGINX to have multiple upstreams. ---
**Author:** ![elasticforme](https://avatars.discourse-cdn.com/v4/letter/e/f05b48/32.png) [@elasticforme](https://discuss.elastic.co/u/elasticforme)\ **Post date:** [September 27, 2021, 12:41pm UTC](https://discuss.elastic.co/t/how-many-hosts-i-can-list-in-logstash-output/285093/4 "2021-09-27T12:41:53Z")
I will have 20 data node that is why I was asking. ---
**Author:** ![aaron-nimocks](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/aaron-nimocks/32/73965_2.png) [@aaron-nimocks](https://discuss.elastic.co/u/aaron-nimocks)\ **Post date:** [September 27, 2021, 12:43pm UTC](https://discuss.elastic.co/t/how-many-hosts-i-can-list-in-logstash-output/285093/5 "2021-09-27T12:43:45Z")
Should be no problem at all to add that many. ---
**Author:** ![zx8086](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/zx8086/32/94917_2.png) [@zx8086](https://discuss.elastic.co/u/zx8086)\ **Post date:** [September 27, 2021, 12:58pm UTC](https://discuss.elastic.co/t/how-many-hosts-i-can-list-in-logstash-output/285093/6 "2021-09-27T12:58:36Z")
> [@elasticforme](#): > > I will have 20 data node that is why I was asking. Unless automated, adding additional hosts to every Elasticsearch Output can be an administrative task, which is why i mentioned reverse proxies like nginx. I use a single address in the configurations like [data-nodes.mydomain.com](http://data-nodes.mydomain.com) in all Elasticsearch configurations and just edit the host in one place, a single time. Hope this helps. ---
**Author:** ![elasticforme](https://avatars.discourse-cdn.com/v4/letter/e/f05b48/32.png) [@elasticforme](https://discuss.elastic.co/u/elasticforme)\ **Post date:** [September 27, 2021, 1:00pm UTC](https://discuss.elastic.co/t/how-many-hosts-i-can-list-in-logstash-output/285093/7 "2021-09-27T13:00:04Z")
> [@zx8086](#): > > Unless automated, adding additional hosts to every Elasticsearch Output can be an administrative task, which is why i mentioned reverse proxies like nginx. I use a single address in the configurations like [data-nodes.mydomain.com](http://data-nodes.mydomain.com) in all Elasticsearch configurations and just edit the host in one place, a single time. Let me ask our Linux team if they already have something like this in place which I can use. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [October 25, 2021, 1:00pm UTC](https://discuss.elastic.co/t/how-many-hosts-i-can-list-in-logstash-output/285093/8 "2021-10-25T13:00:16Z")
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