# Changing Logstash Heap Size
**URL:** https://discuss.elastic.co/t/changing-logstash-heap-size/69542
**Category:** Logstash
**Created:** [December 20, 2016, 9:45am UTC](https://discuss.elastic.co/t/changing-logstash-heap-size/69542 "2016-12-20T09:45:21Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@wenyao](https://discuss.elastic.co/u/wenyao)
#### Post date: [December 20, 2016, 9:45am UTC](https://discuss.elastic.co/t/changing-logstash-heap-size/69542/1 "2016-12-20T09:45:21Z")
Is it possible to change the max and min heap size for logstash v5.0.1? If possible, how?
---
### Author:  [@jsvd](https://discuss.elastic.co/u/jsvd)
#### Post date: [December 20, 2016, 11:33am UTC](https://discuss.elastic.co/t/changing-logstash-heap-size/69542/2 "2016-12-20T11:33:05Z")
you can edit the `config/jvm.options` file, or use the `LS_JAVA_OPTS` environment variable.
---
### Author:  [@wenyao](https://discuss.elastic.co/u/wenyao)
#### Post date: [December 20, 2016, 11:34am UTC](https://discuss.elastic.co/t/changing-logstash-heap-size/69542/3 "2016-12-20T11:34:06Z")
How do i use LS\_JAVA\_OPTS for multiple flags? do you have an example?
---
### Author:  [@jsvd](https://discuss.elastic.co/u/jsvd)
#### Post date: [December 20, 2016, 11:38am UTC](https://discuss.elastic.co/t/changing-logstash-heap-size/69542/4 "2016-12-20T11:38:21Z")
`LS_JAVA_OPTS="-Xmx2g -Xms1g" bin/logstash -e ""`
---
### Author:  [@wenyao](https://discuss.elastic.co/u/wenyao)
#### Post date: [December 20, 2016, 11:41am UTC](https://discuss.elastic.co/t/changing-logstash-heap-size/69542/5 "2016-12-20T11:41:09Z")
> [@jsvd](#):
>
> LS\_JAVA\_OPTS="-Xmx2g -Xms1g"
It works! Thank you very much!
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [January 17, 2017, 11:41am UTC](https://discuss.elastic.co/t/changing-logstash-heap-size/69542/6 "2017-01-17T11:41:30Z")
This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.