# Install elastiflow on ubuntu18.04

**URL:** <https://discuss.elastic.co/t/install-elastiflow-on-ubuntu18-04/235475>\
**Category:** Logstash\
**Created:** [June 3, 2020, 6:34am UTC](https://discuss.elastic.co/t/install-elastiflow-on-ubuntu18-04/235475 "2020-06-03T06:34:54Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![kase](https://avatars.discourse-cdn.com/v4/letter/k/a5b964/32.png) [@kase](https://discuss.elastic.co/u/kase)\
**Post date:** [June 3, 2020, 6:34am UTC](https://discuss.elastic.co/t/install-elastiflow-on-ubuntu18-04/235475/1 "2020-06-03T06:34:54Z")

</div>

Hi there,  
I followed this tutorial to study elastiflow([https://www.catapultsystems.com/blogs/install-elastiflow-on-ubuntu-18-04-part-3/](https://www.catapultsystems.com/blogs/install-elastiflow-on-ubuntu-18-04-part-3/)), but faced some problem with using this command: `sudo /usr/share/logstash/bin/system-install`  
the output is

```
OpenJDK 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release.
2020-06-03T06:12:04.406Z [main] WARN FilenoUtil : Native subprocess control requires open access to sun.nio.ch
Pass '--add-opens java.base/sun.nio.ch=org.jruby.dist' or '=org.jruby.core' to enable.
Errno::EBADF: Bad file descriptor - systemctl
            spawn at org/jruby/RubyProcess.java:1635
            spawn at org/jruby/RubyKernel.java:1658
        popen_run at /usr/share/logstash/vendor/jruby/lib/ruby/stdlib/open3.rb:202
           popen3 at /usr/share/logstash/vendor/jruby/lib/ruby/stdlib/open3.rb:98
          execute at /usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/pleaserun-0.0.31/lib/pleaserun/detector.rb:74
   detect_systemd at /usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/pleaserun-0.0.31/lib/pleaserun/detector.rb:29
  detect_platform at /usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/pleaserun-0.0.31/lib/pleaserun/detector.rb:24
           detect at /usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/pleaserun-0.0.31/lib/pleaserun/detector.rb:18
   setup_defaults at /usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/pleaserun-0.0.31/lib/pleaserun/cli.rb:153
          execute at /usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/pleaserun-0.0.31/lib/pleaserun/cli.rb:119
              run at /usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/clamp-0.6.5/lib/clamp/command.rb:67
              run at /usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/pleaserun-0.0.31/lib/pleaserun/cli.rb:114
              run at /usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/clamp-0.6.5/lib/clamp/command.rb:132
           <main> at /usr/share/logstash/lib/systeminstall/pleasewrap.rb:28
Unable to install system startup script for Logstash.

```

I tried `sudo nano /etc/logstash/jvm.options`, change GC configuration to G1GC

## GC configuration

#-XX:+UseConcMarkSweepGC  
#-XX:CMSInitiatingOccupancyFraction=75  
#-XX:+UseCMSInitiatingOccupancyOnly  
#add G1GC  
-XX:+UseG1GC  
-XX:MaxGCPauseMillis=50

but still don't work...

(My elasticsearch version is 7.7.0, java version is openjdk version "11.0.7")  
Can anyone help into this?  
Thanks

---

<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:** [July 1, 2020, 6:35am UTC](https://discuss.elastic.co/t/install-elastiflow-on-ubuntu18-04/235475/2 "2020-07-01T06:35:01Z")

</div>

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