# Ignition service won't restart

**URL:** <https://forum.inductiveautomation.com/t/ignition-service-wont-restart/91780>\
**Category:** Ignition\
**Tags:** ignition81\
**Created:** [June 12, 2024, 8:57pm UTC](https://forum.inductiveautomation.com/t/ignition-service-wont-restart/91780 "2024-06-12T20:57:34Z")\
**Posts on this page:** 1\
**Showing post:** 5

<div class="post-metadata">

**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [June 12, 2024, 9:23pm UTC](https://forum.inductiveautomation.com/t/ignition-service-wont-restart/91780/5 "2024-06-12T21:23:44Z")

</div>

It looks like the ignition.conf from the 7.9 backup includes some JVM arguments that are no longer valid:

```python
STATUS | wrapper | 2024/06/12 15:48:15 | Launching a JVM...
INFO | jvm 1 | 2024/06/12 15:48:15 | Unrecognized VM option 'UseConcMarkSweepGC'
INFO | jvm 1 | 2024/06/12 15:48:15 | Error: Could not create the Java Virtual Machine.
INFO | jvm 1 | 2024/06/12 15:48:15 | Error: A fatal exception has occurred. Program will exit.
ERROR | wrapper | 2024/06/12 15:48:15 | JVM exited while loading the application.

```

Post the "Java Additional Parameters" section from your ignition.conf file after the restore.

A fresh one for 8.x will look something like this:

```python
# Java Additional Parameters
wrapper.java.additional.1=-Ddata.dir=data
wrapper.java.additional.2=--add-opens=java.base/java.lang=ALL-UNNAMED
wrapper.java.additional.3=--add-opens=java.base/java.io=ALL-UNNAMED
wrapper.java.additional.4=--add-opens=java.base/java.security.cert=ALL-UNNAMED
wrapper.java.additional.5=--add-opens=java.base/java.util=ALL-UNNAMED
wrapper.java.additional.6=--add-opens=java.base/jdk.internal.misc=ALL-UNNAMED
#wrapper.java.additional.6=-Xdebug
#wrapper.java.additional.7=-Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=*:8000

```

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