# How to unistall logstash using yum on CentOS

**URL:** <https://discuss.elastic.co/t/how-to-unistall-logstash-using-yum-on-centos/209010>\
**Category:** Logstash\
**Created:** [November 22, 2019, 5:40am UTC](https://discuss.elastic.co/t/how-to-unistall-logstash-using-yum-on-centos/209010 "2019-11-22T05:40:53Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![rishab](https://avatars.discourse-cdn.com/v4/letter/r/e36b37/32.png) [@rishab](https://discuss.elastic.co/u/rishab)\
**Post date:** [November 22, 2019, 5:40am UTC](https://discuss.elastic.co/t/how-to-unistall-logstash-using-yum-on-centos/209010/1 "2019-11-22T05:40:53Z")

</div>

I am using logstash on apache server on my AWS instance.

---

<div class="post-metadata">

**Author:** ![gab.bernasconi](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/gab.bernasconi/32/57955_2.png) [@gab.bernasconi](https://discuss.elastic.co/u/gab.bernasconi)\
**Post date:** [November 22, 2019, 8:31am UTC](https://discuss.elastic.co/t/how-to-unistall-logstash-using-yum-on-centos/209010/2 "2019-11-22T08:31:37Z")

</div>

Did you install it via the RPM package? If so, just type

```
yum remove logstash

```

and you should be good.

---

<div class="post-metadata">

**Author:** ![rishab](https://avatars.discourse-cdn.com/v4/letter/r/e36b37/32.png) [@rishab](https://discuss.elastic.co/u/rishab)\
**Post date:** [November 22, 2019, 8:50am UTC](https://discuss.elastic.co/t/how-to-unistall-logstash-using-yum-on-centos/209010/3 "2019-11-22T08:50:28Z")

</div>

When I try to reinstall logstash this comes up:` Installing : 1:logstash-7.4.2-1.noarch 1/1  
Using provided startup.options file: /etc/logstash/startup.options  
Exception in thread "main" java.lang.UnsupportedClassVersionError: org/jruby/Main : Unsupported major.minor version 52.0  
at java.lang.ClassLoader.findBootstrapClass(Native Method)  
at java.lang.ClassLoader.findBootstrapClassOrNull(ClassLoader.java:1078)  
at java.lang.ClassLoader.loadClass(ClassLoader.java:419)  
at java.lang.ClassLoader.loadClass(ClassLoader.java:417)  
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:323)  
at java.lang.ClassLoader.loadClass(ClassLoader.java:363)  
at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482)  
Verifying : 1:logstash-7.4.2-1.noarch 1/1

Installed:  
logstash.noarch 1:7.4.2-1 `

---

<div class="post-metadata">

**Author:** ![gab.bernasconi](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/gab.bernasconi/32/57955_2.png) [@gab.bernasconi](https://discuss.elastic.co/u/gab.bernasconi)\
**Post date:** [November 22, 2019, 11:03am UTC](https://discuss.elastic.co/t/how-to-unistall-logstash-using-yum-on-centos/209010/4 "2019-11-22T11:03:37Z")

</div>

> [@rishab](#):
>
> Exception in thread "main" java.lang.UnsupportedClassVersionError: org/jruby/Main : Unsupported major.minor version 52.0

Looks like a Java issue: see for example [this](https://github.com/elastic/elasticsearch/issues/17584) Github issue, with an almost identical exception message.

Can you check is JDK/JRE is correctly installed and configured?

---

<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:** [December 20, 2019, 11:03am UTC](https://discuss.elastic.co/t/how-to-unistall-logstash-using-yum-on-centos/209010/5 "2019-12-20T11:03:43Z")

</div>

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