# High Heap Usage at Idle

**URL:** <https://discuss.elastic.co/t/high-heap-usage-at-idle/124857>\
**Category:** Elasticsearch\
**Created:** [March 20, 2018, 8:16pm UTC](https://discuss.elastic.co/t/high-heap-usage-at-idle/124857 "2018-03-20T20:16:53Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![kurtiskurtis](https://avatars.discourse-cdn.com/v4/letter/k/45deac/32.png) [@kurtiskurtis](https://discuss.elastic.co/u/kurtiskurtis)\
**Post date:** [March 20, 2018, 8:16pm UTC](https://discuss.elastic.co/t/high-heap-usage-at-idle/124857/1 "2018-03-20T20:16:53Z")

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My cluster has:

3 dedicated masters  
3 data/ingest nodes (30 GB Heap, 60GB Ram)

Even when my cluster is not being read from or written to my heap percentages are in the 70% zone. Is this normal?

I have about 250 indexes each with 4 shards and 1 replica

I am sure this alone is not enough information to get to the bottom of the problem, but I am too new to know what is and is not needed. I am of-course open to any suggestions, and will provide any information where requested.

```
name heapCurrent heapMax heapPercent ramCurrent ramMax ramPercent
es-master-1 495.1mb 7.9gb 6 9gb 14.6gb 61
es-master-2 518.4mb 7.9gb 6 9gb 14.6gb 61
es-master-3 1gb 7.9gb 12 9gb 14.6gb 62
es-data-1 19.2gb 29.9gb 64 59.2gb 59.9gb 99
es-data-2 22gb 29.9gb 73 59.5gb 59.9gb 99
es-data-3 21.9gb 29.9gb 73 51.9gb 59.9gb 87
```

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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:** [March 22, 2018, 5:53am UTC](https://discuss.elastic.co/t/high-heap-usage-at-idle/124857/2 "2018-03-22T05:53:59Z")

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If it was \>75% and GC wasn't doing anything I would be worried. But as it is I wouldn't worry too much.

Are you using Monitoring in X-Pack to keep an eye on things?

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**Author:** ![kurtiskurtis](https://avatars.discourse-cdn.com/v4/letter/k/45deac/32.png) [@kurtiskurtis](https://discuss.elastic.co/u/kurtiskurtis)\
**Post date:** [March 22, 2018, 12:47pm UTC](https://discuss.elastic.co/t/high-heap-usage-at-idle/124857/3 "2018-03-22T12:47:40Z")

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I am using x-pack to monitor things, but unfortunately Im not sure what I should be looking for.

That said, randomly circuit breaker exceptions pop up in kibana, without me diong anything so I do believe this is a problem.

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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:** [April 19, 2018, 12:47pm UTC](https://discuss.elastic.co/t/high-heap-usage-at-idle/124857/4 "2018-04-19T12:47:44Z")

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