Problem

In Windows server OS, when we shut down  Confluence service from Windows services does not shut down properly and create mini  dump mdmp files under the installation folder of Confluence

Environment

• Confluence Version 8.4 Onwards

Steps to Reproduce

• Install Confluence in Windows OS 
• Make sure to have Confluence run as a Windows service.
• Go to services.msc and stop the Confluence service.
• Could see the below logs in atlassian-confluence.log
  • 2023-09-07 20:13:58,662 WARN [Catalina-utility-3] [confluence.impl.webapp.ContextShutdownThreadListener] logAndInterrupt Non-daemon thread [Thread-32] is still alive, and may be blocking clean shutdown - interrupting
  • 

Expected Results

• Confluence should shut down(from Windows services) cleanly without generating mini dump files (~5GB) under the installation directory of Confluence in Windows OS.

Actual Results

The below files are generated under the installation folder

• hs_err_pid1244.mdmp (file size in giga bytes)
• hs_err_pid1244.txt
• hs_err_pid1244.jfr 

Workaround 1 (recommended)

• Use java option -XX:-CreateMinidumpOnCrash to disable these mini dumps whenever there is a shutdown of Confluence.!https://cdn.sstatic.net/Sites/stackoverflow/Img/favicon.ico?v=ec617d715196!How to disable minidump (mdmp) files generation with Java Hotspot JVM on Windows 

• mini dump not created after the above setting

Workaround 2

• I have found another workaround from my testing lab, Please disable JFR under Troubleshooting- support tools in UI and stop the Confluence. It should not produce any dumps once this setting is off.
  

As we have two workarounds, recommend -XX:-CreateMinidumpOnCrash and leave JFR enabled as JFR data is good to collect.

Notes:

Linux OS looks good, no dumps were created during shutdown.

Mini dump files are generated by Windows OS when the program crashes or some error occurs
The mini-dump is small and is a snapshot of a program's state at the time of the crash. It contains information about call stack, registers, and a portion of memory 

These files are used for diagnosing application systems crashes but do not provide more info about application memory

 core dump files --Linux equivalent generated when a program crashes.