# Logstash cannot load config file
**URL:** https://discuss.elastic.co/t/logstash-cannot-load-config-file/58113
**Category:** Logstash
**Created:** [August 16, 2016, 8:41am UTC](https://discuss.elastic.co/t/logstash-cannot-load-config-file/58113 "2016-08-16T08:41:55Z")
**Posts on this page:** 18
**Page:** 1
### Author:  [@Nizar\_Khalifa](https://discuss.elastic.co/u/Nizar_Khalifa)
#### Post date: [August 16, 2016, 8:41am UTC](https://discuss.elastic.co/t/logstash-cannot-load-config-file/58113/1 "2016-08-16T08:41:55Z")
Hello,
I have a problem with Logstash configuration. Its running with 500Xmx. When i tried to increase it in **/etc/default/logstash** to `1g` it doesnt take it into account after retasrting. But when i set LS\_HEAP\_SIZE to `1g` in **/opt/logstash/bin/logstash.lib.sh** it works.
How can i load configuration in default config file ?
Best reagards,
Nizar.
---
### Author:  [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)
#### Post date: [August 16, 2016, 9:02am UTC](https://discuss.elastic.co/t/logstash-cannot-load-config-file/58113/2 "2016-08-16T09:02:12Z")
Which distribution and version? Are you using systemd?
---
### Author:  [@Nizar\_Khalifa](https://discuss.elastic.co/u/Nizar_Khalifa)
#### Post date: [August 16, 2016, 9:10am UTC](https://discuss.elastic.co/t/logstash-cannot-load-config-file/58113/3 "2016-08-16T09:10:27Z")
I'm using 2.3.1, and it's not installed as a service, i runned it with /opt/logstash/bin/logstash agent -f qpa.conf.
---
### Author:  [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)
#### Post date: [August 16, 2016, 9:12am UTC](https://discuss.elastic.co/t/logstash-cannot-load-config-file/58113/4 "2016-08-16T09:12:22Z")
/etc/default/logstash only matters when starting it as a service. If you're starting Logstash directly from your shell you can do this:
```
LS_HEAP_SIZE=1g /opt/logstash/bin/logstash agent -f qpa.conf
```
---
### Author:  [@Nizar\_Khalifa](https://discuss.elastic.co/u/Nizar_Khalifa)
#### Post date: [August 16, 2016, 9:21am UTC](https://discuss.elastic.co/t/logstash-cannot-load-config-file/58113/5 "2016-08-16T09:21:50Z")
Thank you it's work.
And if I want to set to **LS\_OPTS="-w"**. I can set it with the same way ?
> LS\_OPTS="-w 8" LS\_HEAP\_SIZE=1g /opt/logstash/bin/logstash agent -f qpa.conf
---
### Author:  [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)
#### Post date: [August 16, 2016, 9:27am UTC](https://discuss.elastic.co/t/logstash-cannot-load-config-file/58113/6 "2016-08-16T09:27:24Z")
Yes.
---
### Author:  [@Nizar\_Khalifa](https://discuss.elastic.co/u/Nizar_Khalifa)
#### Post date: [August 16, 2016, 9:28am UTC](https://discuss.elastic.co/t/logstash-cannot-load-config-file/58113/7 "2016-08-16T09:28:39Z")
Thank you.
And how can i chek if new LS\_OPTS configuration taket into account ?
---
### Author:  [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)
#### Post date: [August 16, 2016, 9:29am UTC](https://discuss.elastic.co/t/logstash-cannot-load-config-file/58113/8 "2016-08-16T09:29:22Z")
Check the actual command line with e.g. `ps aux | grep logstash`.
---
### Author:  [@Nizar\_Khalifa](https://discuss.elastic.co/u/Nizar_Khalifa)
#### Post date: [August 16, 2016, 9:34am UTC](https://discuss.elastic.co/t/logstash-cannot-load-config-file/58113/9 "2016-08-16T09:34:12Z")
Here is the output:
> root 8242 149 1.5 5148100 257004 pts/3 Sl 11:31 1:53 /usr/bin/java -XX:+UseParNewGC -XX:+UseConcMarkSweepGC -Djava.awt.headless=true -XX:CMSInitiatingOccupancyFraction=75 -XX:+UseCMSInitiatingOccupancyOnly -XX:+HeapDumpOnOutOfMemoryError -Xmx2g -Xss2048k -Djffi.boot.library.path=/opt/logstash-2.3.1/vendor/jruby/lib/jni -XX:+UseParNewGC -XX:+UseConcMarkSweepGC -Djava.awt.headless=true -XX:CMSInitiatingOccupancyFraction=75 -XX:+UseCMSInitiatingOccupancyOnly -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/opt/logstash/heapdump.hprof -Xbootclasspath/a:/opt/logstash-2.3.1/vendor/jruby/lib/jruby.jar -classpath : -Djruby.home=/opt/logstash-2.3.1/vendor/jruby -Djruby.lib=/opt/logstash-2.3.1/vendor/jruby/lib -Djruby.script=jruby -Djruby.shell=/bin/sh org.jruby.Main --1.9 /opt/logstash/lib/bootstrap/environment.rb logstash/runner.rb agent -f qpa.conf
But i cant see the LS\_OPTS option !!
---
### Author:  [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)
#### Post date: [August 16, 2016, 9:40am UTC](https://discuss.elastic.co/t/logstash-cannot-load-config-file/58113/10 "2016-08-16T09:40:51Z")
Oh, wait. Silly me. To pass `-w` when running it from your shell you obviously just pass that parameter (alongside `-f` and whatever). LS\_OPTS only matters when running it as a service, but LS\_HEAP\_SIZE, LS\_JAVA\_OPTS, and JAVA\_OPTS are always picked up.
---
### Author:  [@Nizar\_Khalifa](https://discuss.elastic.co/u/Nizar_Khalifa)
#### Post date: [August 16, 2016, 9:45am UTC](https://discuss.elastic.co/t/logstash-cannot-load-config-file/58113/11 "2016-08-16T09:45:47Z")
Thank you.
So is there any way to pass LS\_OPTS in my case ? Or i have to install logstash as a service ?
---
### Author:  [@Nizar\_Khalifa](https://discuss.elastic.co/u/Nizar_Khalifa)
#### Post date: [August 16, 2016, 9:51am UTC](https://discuss.elastic.co/t/logstash-cannot-load-config-file/58113/12 "2016-08-16T09:51:26Z")
Also, when i run logstash i have this message:
> Defaulting pipeline worker threads to 1 because there are some filters that might not work with multiple worker threads.
What does it mean ?
---
### Author:  [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)
#### Post date: [August 16, 2016, 9:53am UTC](https://discuss.elastic.co/t/logstash-cannot-load-config-file/58113/13 "2016-08-16T09:53:53Z")
> So is there any way to pass LS\_OPTS in my case ?
As I said, to pass `-w` when running it from your shell you obviously just pass that parameter (alongside `-f` and whatever). Is this unclear?
> Or i have to install logstash as a service ?
Except for local testing you should never be running Logstash from your shell.
---
### Author:  [@Nizar\_Khalifa](https://discuss.elastic.co/u/Nizar_Khalifa)
#### Post date: [August 16, 2016, 9:58am UTC](https://discuss.elastic.co/t/logstash-cannot-load-config-file/58113/14 "2016-08-16T09:58:01Z")
Sorry, i didnt understand at first. Now its clear.
Thank you
---
### Author:  [@Nizar\_Khalifa](https://discuss.elastic.co/u/Nizar_Khalifa)
#### Post date: [August 16, 2016, 10:00am UTC](https://discuss.elastic.co/t/logstash-cannot-load-config-file/58113/15 "2016-08-16T10:00:11Z")
Can you explain to me why i get this message when i run logstash ?
Also, when i run logstash i have this message:
> Defaulting pipeline worker threads to 1 because there are some filters that might not work with multiple worker threads.
---
### Author:  [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)
#### Post date: [August 16, 2016, 11:16am UTC](https://discuss.elastic.co/t/logstash-cannot-load-config-file/58113/16 "2016-08-16T11:16:01Z")
What's unclear about it? I think it's a pretty explicit message.
---
### Author:  [@Nizar\_Khalifa](https://discuss.elastic.co/u/Nizar_Khalifa)
#### Post date: [August 16, 2016, 3:46pm UTC](https://discuss.elastic.co/t/logstash-cannot-load-config-file/58113/17 "2016-08-16T15:46:43Z")
Thank you 🙂
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 6, 2017, 4:43am UTC](https://discuss.elastic.co/t/logstash-cannot-load-config-file/58113/18 "2017-07-06T04:43:16Z")