The DR server service was terminated, but the main server was also terminated at the same time.

[sola0722]

Current status : DR server and main server exist separately

Situation : After terminating the DR server service through ./stop-conflucne.sh, immediately restart the service through ./start-confluence.sh.
After about 6 minutes, the Confluence Main server went down.

atlassian-confluence.log on the main server : 
22-Nov-2023 10:04:21.957 WARNING [http-nio-8090-exec-140] com.sun.jersey.spi.container.servlet.WebComponent.filterFormParameters A servlet request, to the URI https://confl.sinc.co.kr/rest/table-filter/1.0/service/license?_=1700615060932, contains form parameters in the request body but the request body has been consumed by the servlet or a servlet filter accessing the request parameters. Only resource methods using @FormParam will work as expected. Resource methods consuming the request body by other means will not work as expected.
22-Nov-2023 10:04:23.795 WARNING [http-nio-8090-exec-147] com.sun.jersey.spi.container.servlet.WebComponent.filterFormParameters A servlet request, to the URI https://confl.sinc.co.kr/rest/tinymce/1/content/271196766/comment?actions=true, contains form parameters in the request body but the request body has been consumed by the servlet or a servlet filter accessing the request parameters. Only resource methods using @FormParam will work as expected. Resource methods consuming the request body by other means will not work as expected.
22-Nov-2023 10:04:28.273 WARNING [http-nio-8090-exec-220] com.sun.jersey.spi.container.servlet.WebComponent.filterFormParameters A servlet request, to the URI https://confl.sinc.co.kr/rest/table-filter/1.0/service/license?_=1700615066431, contains form parameters in the request body but the request body has been consumed by the servlet or a servlet filter accessing the request parameters. Only resource methods using @FormParam will work as expected. Resource methods consuming the request body by other means will not work as expected.
22-Nov-2023 10:04:35.767 WARNING [http-nio-8090-exec-217] com.sun.jersey.spi.container.servlet.WebComponent.filterFormParameters A servlet request, to the URI https://confl.sinc.co.kr/rest/table-filter/1.0/service/license?_=1700615074447, contains form parameters in the request body but the request body has been consumed by the servlet or a servlet filter accessing the request parameters. Only resource methods using @FormParam will work as expected. Resource methods consuming the request body by other means will not work as expected.
22-Nov-2023 10:04:37.636 WARNING [http-nio-8090-exec-137] com.sun.jersey.spi.container.servlet.WebComponent.filterFormParameters A servlet request, to the URI https://confl.sinc.co.kr/rest/table-filter/1.0/service/license?_=1700615076734, contains form parameters in the request body but the request body has been consumed by the servlet or a servlet filter accessing the request parameters. Only resource methods using @FormParam will work as expected. Resource methods consuming the request body by other means will not work as expected.
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x00007faf28512993, pid=179913, tid=0x00007faf25c49700
#
# JRE version: OpenJDK Runtime Environment (8.0_262-b10) (build 1.8.0_262-b10)
# Java VM: OpenJDK 64-Bit Server VM (25.262-b10 mixed mode linux-amd64 compressed oops)
# Problematic frame:
# V [libjvm.so+0xa32993] void ShenandoahConcurrentMark::mark_loop_work<ShenandoahMarkRefsDedupClosure, true>(ShenandoahMarkRefsDedupClosure*, unsigned short*, unsigned int, ShenandoahTaskTerminator*)+0x1283
#
# Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
# An error report file with more information is saved as:
# /app/application/confluence/bin/hs_err_pid179913.log
#
# If you would like to submit a bug report, please visit:
# http://bugreport.java.com/bugreport/crash.jsp
#
Min heap equals to max heap, disabling ShenandoahUncommit
Consider -XX:+ClassUnloadingWithConcurrentMark if large pause times are observed on class-unloading sensitive workloads
JSPD loading for java=1.8.0_262
AspectWerkz - INFO - Pre-main loaded and initialized

Question : The DR server went down, but why did the main server go down as well?