# "http" "total\_opened" connection count is huge on data nodes

**URL:** https://discuss.elastic.co/t/http-total-opened-connection-count-is-huge-on-data-nodes/150821
**Category:** Elasticsearch
**Created:** [October 3, 2018, 6:02am UTC](https://discuss.elastic.co/t/http-total-opened-connection-count-is-huge-on-data-nodes/150821 "2018-10-03T06:02:39Z")
**Posts on this page:** 7
**Page:** 1

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### Author: ![rajkumar.m](https://avatars.discourse-cdn.com/v4/letter/r/e9bcb4/32.png) [@rajkumar.m](https://discuss.elastic.co/u/rajkumar.m)
#### Post date: [October 3, 2018, 6:02am UTC](https://discuss.elastic.co/t/http-total-opened-connection-count-is-huge-on-data-nodes/150821/1 "2018-10-03T06:02:39Z")

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Hi,

I have observed that "http" "total\_opened" connection count is huge on data nodes.

Please help.

Thanks

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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: [October 3, 2018, 6:48am UTC](https://discuss.elastic.co/t/http-total-opened-connection-count-is-huge-on-data-nodes/150821/2 "2018-10-03T06:48:43Z")

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How huge? Why is it a problem\>?

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### Author: ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)
#### Post date: [October 3, 2018, 6:53am UTC](https://discuss.elastic.co/t/http-total-opened-connection-count-is-huge-on-data-nodes/150821/3 "2018-10-03T06:53:53Z")

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Are your clients not using persistent connections? How large is 'huge'?

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### Author: ![rajkumar.m](https://avatars.discourse-cdn.com/v4/letter/r/e9bcb4/32.png) [@rajkumar.m](https://discuss.elastic.co/u/rajkumar.m)
#### Post date: [October 3, 2018, 2:16pm UTC](https://discuss.elastic.co/t/http-total-opened-connection-count-is-huge-on-data-nodes/150821/4 "2018-10-03T14:16:57Z")

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Hi Chris,

Thanks for reply,  
We are facing performance issues and we have observed the below http total\_opened count is continuously increasing on data nodes.  
we are not sure of impact of this, if this is issue, does it have any limit that we can validate.

Please let me know how to check the persistent connections settings.

```
  "current_open" : 11,
    "total_opened" : 2826897

```

Thanks

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<div class="post-metadata">

### Author: ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)
#### Post date: [October 3, 2018, 2:19pm UTC](https://discuss.elastic.co/t/http-total-opened-connection-count-is-huge-on-data-nodes/150821/5 "2018-10-03T14:19:29Z")

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That is an ever increasing counter of the number of connections seen. Unless this grows very quickly this should probably not be anything to worry about.

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### Author: ![rajkumar.m](https://avatars.discourse-cdn.com/v4/letter/r/e9bcb4/32.png) [@rajkumar.m](https://discuss.elastic.co/u/rajkumar.m)
#### Post date: [October 3, 2018, 5:33pm UTC](https://discuss.elastic.co/t/http-total-opened-connection-count-is-huge-on-data-nodes/150821/6 "2018-10-03T17:33:14Z")

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Thanks Chris for clarification !!

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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: [October 31, 2018, 5:33pm UTC](https://discuss.elastic.co/t/http-total-opened-connection-count-is-huge-on-data-nodes/150821/7 "2018-10-31T17:33:15Z")

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