# GCoverhead

**URL:** https://discuss.elastic.co/t/gcoverhead/181095
**Category:** Elasticsearch
**Created:** [May 15, 2019, 4:28am UTC](https://discuss.elastic.co/t/gcoverhead/181095 "2019-05-15T04:28:52Z")
**Posts on this page:** 7
**Page:** 1

<div class="post-metadata">

### Author: ![Vinay\_G](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/vinay_g/32/45741_2.png) [@Vinay\_G](https://discuss.elastic.co/u/Vinay_G)
#### Post date: [May 15, 2019, 4:28am UTC](https://discuss.elastic.co/t/gcoverhead/181095/1 "2019-05-15T04:28:52Z")

</div>

Hi,

I could see below warning message in my ES Logs.

[2017-04-07T13:34:15,260][WARN][o.e.m.j.JvmGcMonitorService] [FBp7aLX] [gc][5157] overhead, spent [1s] collecting in the last [1.1s]

Also in our settings for ES, the refresh interval for document is set as 1s.  
So because of the above warning does it mean it takes 1.1s+1s = 2.1 s to index a document?  
Can someone explain more about this GC overhead and how to overcome this?

---

<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: [May 15, 2019, 5:44am UTC](https://discuss.elastic.co/t/gcoverhead/181095/2 "2019-05-15T05:44:08Z")

</div>

Which version are you using? How much heap does you nodes have assigned? What is the output of the [cluster health API](https://www.elastic.co/guide/en/elasticsearch/reference/current/cluster-health.html)?

---

<div class="post-metadata">

### Author: ![Vinay\_G](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/vinay_g/32/45741_2.png) [@Vinay\_G](https://discuss.elastic.co/u/Vinay_G)
#### Post date: [May 15, 2019, 5:14pm UTC](https://discuss.elastic.co/t/gcoverhead/181095/3 "2019-05-15T17:14:58Z")

</div>

We are using ES 5.5.0 and we have 5 nodes.  
Cluster status is yellow.

---

<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: [May 15, 2019, 5:56pm UTC](https://discuss.elastic.co/t/gcoverhead/181095/4 "2019-05-15T17:56:45Z")

</div>

What about my other questions?

---

<div class="post-metadata">

### Author: ![Vinay\_G](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/vinay_g/32/45741_2.png) [@Vinay\_G](https://discuss.elastic.co/u/Vinay_G)
#### Post date: [May 15, 2019, 11:50pm UTC](https://discuss.elastic.co/t/gcoverhead/181095/5 "2019-05-15T23:50:59Z")

</div>

Hi the heap is currently 40GB on each machine.

---

<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: [May 16, 2019, 4:58am UTC](https://discuss.elastic.co/t/gcoverhead/181095/6 "2019-05-16T04:58:18Z")

</div>

And what about the output of the cluster health spy?

---

<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: [June 13, 2019, 4:58am UTC](https://discuss.elastic.co/t/gcoverhead/181095/7 "2019-06-13T04:58:23Z")

</div>

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.