# How to eliminate swapping of logstash container
**URL:** https://discuss.elastic.co/t/how-to-eliminate-swapping-of-logstash-container/151873
**Category:** Logstash
**Created:** [October 10, 2018, 3:06pm UTC](https://discuss.elastic.co/t/how-to-eliminate-swapping-of-logstash-container/151873 "2018-10-10T15:06:43Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@netvmdb](https://discuss.elastic.co/u/netvmdb)
#### Post date: [October 10, 2018, 3:06pm UTC](https://discuss.elastic.co/t/how-to-eliminate-swapping-of-logstash-container/151873/1 "2018-10-10T15:06:43Z")
elasticsearch / logstash / kibana oss 6.2.4 running as docker containers in one physical host.
Already set vm.swappiness=1 on the host. But swappiness still happening.
I tried following setting for elasticsearch nodes, but swapping still happening on elasticsearch nodes. Not sure what setting I can try on logstash?
```
environment:
- bootstrap.memory_lock=true
ulimits:
memlock:
soft: -1
hard: -1
```
Thanks.
---
### Author:  [@netvmdb](https://discuss.elastic.co/u/netvmdb)
#### Post date: [October 12, 2018, 6:22pm UTC](https://discuss.elastic.co/t/how-to-eliminate-swapping-of-logstash-container/151873/2 "2018-10-12T18:22:36Z")
If I restart all containers, the host will reclaim all the free swap space initially. But host gradually lost its swap space.
If I increase JVM heap size to 8GB, it slows down the rate of disappearing swap space.
I am using daily index and one log file has 25GB data/day. What is the idea heap size for JVM?
Thanks,
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [November 10, 2018, 10:06am UTC](https://discuss.elastic.co/t/how-to-eliminate-swapping-of-logstash-container/151873/5 "2018-11-10T10:06:31Z")
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